Vulnerability-Lookup

RHSA-2026:73426

Vulnerability from csaf_redhat - Published: 2026-09-29 20:40 - Updated: 2026-09-29 22:17

Summary

Red Hat Security Advisory: gdb security update

Severity

Important

Notes

Topic: An update for gdb is now available for Red Hat Enterprise Linux 9. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Details: The GNU Debugger (GDB) allows you to debug programs written in C, C++, Java, and other languages by executing them in a controlled fashion and then printing out their data. Security Fix(es): * gdb: Out-of-bounds write in STABS parser read_member_functions() via crafted ELF (CVE-2026-13732) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.

CVE-2026-13732

A flaw was found in GDB's STABS debug format parser. The read_member_functions() function in gdb/stabsread.c contains a linked list removal bug in the code that separates destructor and non-destructor member functions of C++ classes. The bug causes the destructor entries to remain in the main function list while the list length counter is decremented, resulting in an out-of-bounds write when the function list is copied to its final allocated array. An attacker can craft an ELF binary with malicious .stab and .stabstr sections that triggers this out-of-bounds write when a user opens the file in GDB and performs any symbol-inspection operation such as setting a breakpoint. The inferior process does not need to be executed. Under controlled conditions, this was demonstrated to achieve execution of arbitrary commands within the GDB process.

7.0 (High)


                
                  CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

CWE-787 - Out-of-bounds Write

Affected products

Fixed 26 products

Product	Version	Remediation
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:gdb-0:16.3-3.1.el9_8.aarch64	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:gdb-0:16.3-3.1.el9_8.ppc64le	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:gdb-0:16.3-3.1.el9_8.s390x	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:gdb-0:16.3-3.1.el9_8.src	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:gdb-0:16.3-3.1.el9_8.x86_64	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:gdb-debuginfo-0:16.3-3.1.el9_8.aarch64	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:gdb-debuginfo-0:16.3-3.1.el9_8.ppc64le	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:gdb-debuginfo-0:16.3-3.1.el9_8.s390x	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:gdb-debuginfo-0:16.3-3.1.el9_8.x86_64	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:gdb-debugsource-0:16.3-3.1.el9_8.aarch64	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:gdb-debugsource-0:16.3-3.1.el9_8.ppc64le	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:gdb-debugsource-0:16.3-3.1.el9_8.s390x	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:gdb-debugsource-0:16.3-3.1.el9_8.x86_64	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:gdb-doc-0:16.3-3.1.el9_8.noarch	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:gdb-gdbserver-0:16.3-3.1.el9_8.aarch64	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:gdb-gdbserver-0:16.3-3.1.el9_8.ppc64le	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:gdb-gdbserver-0:16.3-3.1.el9_8.s390x	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:gdb-gdbserver-0:16.3-3.1.el9_8.x86_64	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:gdb-headless-0:16.3-3.1.el9_8.aarch64	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:gdb-headless-0:16.3-3.1.el9_8.ppc64le	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:gdb-headless-0:16.3-3.1.el9_8.s390x	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:gdb-headless-0:16.3-3.1.el9_8.x86_64	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:gdb-minimal-0:16.3-3.1.el9_8.aarch64	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:gdb-minimal-0:16.3-3.1.el9_8.ppc64le	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:gdb-minimal-0:16.3-3.1.el9_8.s390x	—	Vendor Fix fix Workaround
Unresolved product id: AppStream-9.8.0.Z.MAIN.EUS:gdb-minimal-0:16.3-3.1.el9_8.x86_64	—	Vendor Fix fix Workaround

Threats

Impact Important

References

7 references

URL	Category
https://access.redhat.com/errata/RHSA-2026:73426	self
https://access.redhat.com/security/updates/classi…	external
https://security.access.redhat.com/data/csaf/v2/a…	self
https://access.redhat.com/security/cve/CVE-2026-13732	self
https://bugzilla.redhat.com/show_bug.cgi?id=2494416	external
https://www.cve.org/CVERecord?id=CVE-2026-13732	external
https://nvd.nist.gov/vuln/detail/CVE-2026-13732	external

Acknowledgments

Bhut Red JD Marsters

JSON

To clipboard

{
  "document": {
    "aggregate_severity": {
      "namespace": "https://access.redhat.com/security/updates/classification/",
      "text": "Important"
    },
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
      "text": "Copyright \u00a9 Red Hat, Inc. All rights reserved.",
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "en",
    "notes": [
      {
        "category": "summary",
        "text": "An update for gdb is now available for Red Hat Enterprise Linux 9.\n\nRed Hat Product Security has rated this update as having a security impact\nof Important. A Common Vulnerability Scoring System (CVSS) base score, which\ngives a detailed severity rating, is available for each vulnerability from\nthe CVE link(s) in the References section.",
        "title": "Topic"
      },
      {
        "category": "general",
        "text": "The GNU Debugger (GDB) allows you to debug programs written in C, C++, Java,\nand other languages by executing them in a controlled fashion and then\nprinting out their data.\n\nSecurity Fix(es):\n\n* gdb: Out-of-bounds write in STABS parser read_member_functions() via crafted ELF (CVE-2026-13732)\n\nFor more details about the security issue(s), including the impact, a CVSS\nscore, acknowledgments, and other related information, refer to the CVE\npage(s) listed in the References section.",
        "title": "Details"
      },
      {
        "category": "legal_disclaimer",
        "text": "This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.",
        "title": "Terms of Use"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "https://access.redhat.com/security/team/contact/",
      "issuing_authority": "Red Hat Product Security is responsible for vulnerability handling across all Red Hat products and services.",
      "name": "Red Hat Product Security",
      "namespace": "https://www.redhat.com"
    },
    "references": [
      {
        "category": "self",
        "summary": "https://access.redhat.com/errata/RHSA-2026:73426",
        "url": "https://access.redhat.com/errata/RHSA-2026:73426"
      },
      {
        "category": "external",
        "summary": "https://access.redhat.com/security/updates/classification/#important",
        "url": "https://access.redhat.com/security/updates/classification/#important"
      },
      {
        "category": "self",
        "summary": "Canonical URL",
        "url": "https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_73426.json"
      }
    ],
    "title": "Red Hat Security Advisory: gdb security update",
    "tracking": {
      "current_release_date": "2026-09-29T22:17:20+00:00",
      "generator": {
        "date": "2026-09-29T22:17:20+00:00",
        "engine": {
          "name": "Red Hat SDEngine",
          "version": "5.4.0"
        }
      },
      "id": "RHSA-2026:73426",
      "initial_release_date": "2026-09-29T20:40:48+00:00",
      "revision_history": [
        {
          "date": "2026-09-29T20:40:48+00:00",
          "number": "1",
          "summary": "Initial version"
        },
        {
          "date": "2026-09-29T20:40:48+00:00",
          "number": "2",
          "summary": "Last updated version"
        },
        {
          "date": "2026-09-29T22:17:20+00:00",
          "number": "3",
          "summary": "Last generated version"
        }
      ],
      "status": "final",
      "version": "3"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_name",
                "name": "Red Hat Enterprise Linux AppStream (v. 9)",
                "product": {
                  "name": "Red Hat Enterprise Linux AppStream (v. 9)",
                  "product_id": "AppStream-9.8.0.Z.MAIN.EUS",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:redhat:enterprise_linux:9::appstream"
                  }
                }
              }
            ],
            "category": "product_family",
            "name": "Red Hat Enterprise Linux"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "gdb-0:16.3-3.1.el9_8.src",
                "product": {
                  "name": "gdb-0:16.3-3.1.el9_8.src",
                  "product_id": "gdb-0:16.3-3.1.el9_8.src",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/gdb@16.3-3.1.el9_8?arch=src"
                  }
                }
              }
            ],
            "category": "architecture",
            "name": "src"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "gdb-0:16.3-3.1.el9_8.aarch64",
                "product": {
                  "name": "gdb-0:16.3-3.1.el9_8.aarch64",
                  "product_id": "gdb-0:16.3-3.1.el9_8.aarch64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/gdb@16.3-3.1.el9_8?arch=aarch64"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "gdb-gdbserver-0:16.3-3.1.el9_8.aarch64",
                "product": {
                  "name": "gdb-gdbserver-0:16.3-3.1.el9_8.aarch64",
                  "product_id": "gdb-gdbserver-0:16.3-3.1.el9_8.aarch64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/gdb-gdbserver@16.3-3.1.el9_8?arch=aarch64"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "gdb-headless-0:16.3-3.1.el9_8.aarch64",
                "product": {
                  "name": "gdb-headless-0:16.3-3.1.el9_8.aarch64",
                  "product_id": "gdb-headless-0:16.3-3.1.el9_8.aarch64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/gdb-headless@16.3-3.1.el9_8?arch=aarch64"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "gdb-minimal-0:16.3-3.1.el9_8.aarch64",
                "product": {
                  "name": "gdb-minimal-0:16.3-3.1.el9_8.aarch64",
                  "product_id": "gdb-minimal-0:16.3-3.1.el9_8.aarch64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/gdb-minimal@16.3-3.1.el9_8?arch=aarch64"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "gdb-debugsource-0:16.3-3.1.el9_8.aarch64",
                "product": {
                  "name": "gdb-debugsource-0:16.3-3.1.el9_8.aarch64",
                  "product_id": "gdb-debugsource-0:16.3-3.1.el9_8.aarch64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/gdb-debugsource@16.3-3.1.el9_8?arch=aarch64"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "gdb-debuginfo-0:16.3-3.1.el9_8.aarch64",
                "product": {
                  "name": "gdb-debuginfo-0:16.3-3.1.el9_8.aarch64",
                  "product_id": "gdb-debuginfo-0:16.3-3.1.el9_8.aarch64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/gdb-debuginfo@16.3-3.1.el9_8?arch=aarch64"
                  }
                }
              }
            ],
            "category": "architecture",
            "name": "aarch64"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "gdb-0:16.3-3.1.el9_8.ppc64le",
                "product": {
                  "name": "gdb-0:16.3-3.1.el9_8.ppc64le",
                  "product_id": "gdb-0:16.3-3.1.el9_8.ppc64le",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/gdb@16.3-3.1.el9_8?arch=ppc64le"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "gdb-gdbserver-0:16.3-3.1.el9_8.ppc64le",
                "product": {
                  "name": "gdb-gdbserver-0:16.3-3.1.el9_8.ppc64le",
                  "product_id": "gdb-gdbserver-0:16.3-3.1.el9_8.ppc64le",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/gdb-gdbserver@16.3-3.1.el9_8?arch=ppc64le"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "gdb-headless-0:16.3-3.1.el9_8.ppc64le",
                "product": {
                  "name": "gdb-headless-0:16.3-3.1.el9_8.ppc64le",
                  "product_id": "gdb-headless-0:16.3-3.1.el9_8.ppc64le",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/gdb-headless@16.3-3.1.el9_8?arch=ppc64le"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "gdb-minimal-0:16.3-3.1.el9_8.ppc64le",
                "product": {
                  "name": "gdb-minimal-0:16.3-3.1.el9_8.ppc64le",
                  "product_id": "gdb-minimal-0:16.3-3.1.el9_8.ppc64le",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/gdb-minimal@16.3-3.1.el9_8?arch=ppc64le"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "gdb-debugsource-0:16.3-3.1.el9_8.ppc64le",
                "product": {
                  "name": "gdb-debugsource-0:16.3-3.1.el9_8.ppc64le",
                  "product_id": "gdb-debugsource-0:16.3-3.1.el9_8.ppc64le",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/gdb-debugsource@16.3-3.1.el9_8?arch=ppc64le"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "gdb-debuginfo-0:16.3-3.1.el9_8.ppc64le",
                "product": {
                  "name": "gdb-debuginfo-0:16.3-3.1.el9_8.ppc64le",
                  "product_id": "gdb-debuginfo-0:16.3-3.1.el9_8.ppc64le",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/gdb-debuginfo@16.3-3.1.el9_8?arch=ppc64le"
                  }
                }
              }
            ],
            "category": "architecture",
            "name": "ppc64le"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "gdb-0:16.3-3.1.el9_8.s390x",
                "product": {
                  "name": "gdb-0:16.3-3.1.el9_8.s390x",
                  "product_id": "gdb-0:16.3-3.1.el9_8.s390x",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/gdb@16.3-3.1.el9_8?arch=s390x"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "gdb-gdbserver-0:16.3-3.1.el9_8.s390x",
                "product": {
                  "name": "gdb-gdbserver-0:16.3-3.1.el9_8.s390x",
                  "product_id": "gdb-gdbserver-0:16.3-3.1.el9_8.s390x",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/gdb-gdbserver@16.3-3.1.el9_8?arch=s390x"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "gdb-headless-0:16.3-3.1.el9_8.s390x",
                "product": {
                  "name": "gdb-headless-0:16.3-3.1.el9_8.s390x",
                  "product_id": "gdb-headless-0:16.3-3.1.el9_8.s390x",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/gdb-headless@16.3-3.1.el9_8?arch=s390x"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "gdb-minimal-0:16.3-3.1.el9_8.s390x",
                "product": {
                  "name": "gdb-minimal-0:16.3-3.1.el9_8.s390x",
                  "product_id": "gdb-minimal-0:16.3-3.1.el9_8.s390x",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/gdb-minimal@16.3-3.1.el9_8?arch=s390x"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "gdb-debugsource-0:16.3-3.1.el9_8.s390x",
                "product": {
                  "name": "gdb-debugsource-0:16.3-3.1.el9_8.s390x",
                  "product_id": "gdb-debugsource-0:16.3-3.1.el9_8.s390x",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/gdb-debugsource@16.3-3.1.el9_8?arch=s390x"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "gdb-debuginfo-0:16.3-3.1.el9_8.s390x",
                "product": {
                  "name": "gdb-debuginfo-0:16.3-3.1.el9_8.s390x",
                  "product_id": "gdb-debuginfo-0:16.3-3.1.el9_8.s390x",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/gdb-debuginfo@16.3-3.1.el9_8?arch=s390x"
                  }
                }
              }
            ],
            "category": "architecture",
            "name": "s390x"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "gdb-0:16.3-3.1.el9_8.x86_64",
                "product": {
                  "name": "gdb-0:16.3-3.1.el9_8.x86_64",
                  "product_id": "gdb-0:16.3-3.1.el9_8.x86_64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/gdb@16.3-3.1.el9_8?arch=x86_64"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "gdb-gdbserver-0:16.3-3.1.el9_8.x86_64",
                "product": {
                  "name": "gdb-gdbserver-0:16.3-3.1.el9_8.x86_64",
                  "product_id": "gdb-gdbserver-0:16.3-3.1.el9_8.x86_64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/gdb-gdbserver@16.3-3.1.el9_8?arch=x86_64"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "gdb-headless-0:16.3-3.1.el9_8.x86_64",
                "product": {
                  "name": "gdb-headless-0:16.3-3.1.el9_8.x86_64",
                  "product_id": "gdb-headless-0:16.3-3.1.el9_8.x86_64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/gdb-headless@16.3-3.1.el9_8?arch=x86_64"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "gdb-minimal-0:16.3-3.1.el9_8.x86_64",
                "product": {
                  "name": "gdb-minimal-0:16.3-3.1.el9_8.x86_64",
                  "product_id": "gdb-minimal-0:16.3-3.1.el9_8.x86_64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/gdb-minimal@16.3-3.1.el9_8?arch=x86_64"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "gdb-debugsource-0:16.3-3.1.el9_8.x86_64",
                "product": {
                  "name": "gdb-debugsource-0:16.3-3.1.el9_8.x86_64",
                  "product_id": "gdb-debugsource-0:16.3-3.1.el9_8.x86_64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/gdb-debugsource@16.3-3.1.el9_8?arch=x86_64"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "gdb-debuginfo-0:16.3-3.1.el9_8.x86_64",
                "product": {
                  "name": "gdb-debuginfo-0:16.3-3.1.el9_8.x86_64",
                  "product_id": "gdb-debuginfo-0:16.3-3.1.el9_8.x86_64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/gdb-debuginfo@16.3-3.1.el9_8?arch=x86_64"
                  }
                }
              }
            ],
            "category": "architecture",
            "name": "x86_64"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "gdb-doc-0:16.3-3.1.el9_8.noarch",
                "product": {
                  "name": "gdb-doc-0:16.3-3.1.el9_8.noarch",
                  "product_id": "gdb-doc-0:16.3-3.1.el9_8.noarch",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/gdb-doc@16.3-3.1.el9_8?arch=noarch"
                  }
                }
              }
            ],
            "category": "architecture",
            "name": "noarch"
          }
        ],
        "category": "vendor",
        "name": "Red Hat"
      }
    ],
    "relationships": [
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "gdb-0:16.3-3.1.el9_8.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9)",
          "product_id": "AppStream-9.8.0.Z.MAIN.EUS:gdb-0:16.3-3.1.el9_8.aarch64"
        },
        "product_reference": "gdb-0:16.3-3.1.el9_8.aarch64",
        "relates_to_product_reference": "AppStream-9.8.0.Z.MAIN.EUS"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "gdb-0:16.3-3.1.el9_8.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 9)",
          "product_id": "AppStream-9.8.0.Z.MAIN.EUS:gdb-0:16.3-3.1.el9_8.ppc64le"
        },
        "product_reference": "gdb-0:16.3-3.1.el9_8.ppc64le",
        "relates_to_product_reference": "AppStream-9.8.0.Z.MAIN.EUS"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "gdb-0:16.3-3.1.el9_8.s390x as a component of Red Hat Enterprise Linux AppStream (v. 9)",
          "product_id": "AppStream-9.8.0.Z.MAIN.EUS:gdb-0:16.3-3.1.el9_8.s390x"
        },
        "product_reference": "gdb-0:16.3-3.1.el9_8.s390x",
        "relates_to_product_reference": "AppStream-9.8.0.Z.MAIN.EUS"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "gdb-0:16.3-3.1.el9_8.src as a component of Red Hat Enterprise Linux AppStream (v. 9)",
          "product_id": "AppStream-9.8.0.Z.MAIN.EUS:gdb-0:16.3-3.1.el9_8.src"
        },
        "product_reference": "gdb-0:16.3-3.1.el9_8.src",
        "relates_to_product_reference": "AppStream-9.8.0.Z.MAIN.EUS"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "gdb-0:16.3-3.1.el9_8.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 9)",
          "product_id": "AppStream-9.8.0.Z.MAIN.EUS:gdb-0:16.3-3.1.el9_8.x86_64"
        },
        "product_reference": "gdb-0:16.3-3.1.el9_8.x86_64",
        "relates_to_product_reference": "AppStream-9.8.0.Z.MAIN.EUS"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "gdb-debuginfo-0:16.3-3.1.el9_8.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9)",
          "product_id": "AppStream-9.8.0.Z.MAIN.EUS:gdb-debuginfo-0:16.3-3.1.el9_8.aarch64"
        },
        "product_reference": "gdb-debuginfo-0:16.3-3.1.el9_8.aarch64",
        "relates_to_product_reference": "AppStream-9.8.0.Z.MAIN.EUS"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "gdb-debuginfo-0:16.3-3.1.el9_8.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 9)",
          "product_id": "AppStream-9.8.0.Z.MAIN.EUS:gdb-debuginfo-0:16.3-3.1.el9_8.ppc64le"
        },
        "product_reference": "gdb-debuginfo-0:16.3-3.1.el9_8.ppc64le",
        "relates_to_product_reference": "AppStream-9.8.0.Z.MAIN.EUS"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "gdb-debuginfo-0:16.3-3.1.el9_8.s390x as a component of Red Hat Enterprise Linux AppStream (v. 9)",
          "product_id": "AppStream-9.8.0.Z.MAIN.EUS:gdb-debuginfo-0:16.3-3.1.el9_8.s390x"
        },
        "product_reference": "gdb-debuginfo-0:16.3-3.1.el9_8.s390x",
        "relates_to_product_reference": "AppStream-9.8.0.Z.MAIN.EUS"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "gdb-debuginfo-0:16.3-3.1.el9_8.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 9)",
          "product_id": "AppStream-9.8.0.Z.MAIN.EUS:gdb-debuginfo-0:16.3-3.1.el9_8.x86_64"
        },
        "product_reference": "gdb-debuginfo-0:16.3-3.1.el9_8.x86_64",
        "relates_to_product_reference": "AppStream-9.8.0.Z.MAIN.EUS"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "gdb-debugsource-0:16.3-3.1.el9_8.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9)",
          "product_id": "AppStream-9.8.0.Z.MAIN.EUS:gdb-debugsource-0:16.3-3.1.el9_8.aarch64"
        },
        "product_reference": "gdb-debugsource-0:16.3-3.1.el9_8.aarch64",
        "relates_to_product_reference": "AppStream-9.8.0.Z.MAIN.EUS"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "gdb-debugsource-0:16.3-3.1.el9_8.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 9)",
          "product_id": "AppStream-9.8.0.Z.MAIN.EUS:gdb-debugsource-0:16.3-3.1.el9_8.ppc64le"
        },
        "product_reference": "gdb-debugsource-0:16.3-3.1.el9_8.ppc64le",
        "relates_to_product_reference": "AppStream-9.8.0.Z.MAIN.EUS"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "gdb-debugsource-0:16.3-3.1.el9_8.s390x as a component of Red Hat Enterprise Linux AppStream (v. 9)",
          "product_id": "AppStream-9.8.0.Z.MAIN.EUS:gdb-debugsource-0:16.3-3.1.el9_8.s390x"
        },
        "product_reference": "gdb-debugsource-0:16.3-3.1.el9_8.s390x",
        "relates_to_product_reference": "AppStream-9.8.0.Z.MAIN.EUS"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "gdb-debugsource-0:16.3-3.1.el9_8.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 9)",
          "product_id": "AppStream-9.8.0.Z.MAIN.EUS:gdb-debugsource-0:16.3-3.1.el9_8.x86_64"
        },
        "product_reference": "gdb-debugsource-0:16.3-3.1.el9_8.x86_64",
        "relates_to_product_reference": "AppStream-9.8.0.Z.MAIN.EUS"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "gdb-doc-0:16.3-3.1.el9_8.noarch as a component of Red Hat Enterprise Linux AppStream (v. 9)",
          "product_id": "AppStream-9.8.0.Z.MAIN.EUS:gdb-doc-0:16.3-3.1.el9_8.noarch"
        },
        "product_reference": "gdb-doc-0:16.3-3.1.el9_8.noarch",
        "relates_to_product_reference": "AppStream-9.8.0.Z.MAIN.EUS"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "gdb-gdbserver-0:16.3-3.1.el9_8.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9)",
          "product_id": "AppStream-9.8.0.Z.MAIN.EUS:gdb-gdbserver-0:16.3-3.1.el9_8.aarch64"
        },
        "product_reference": "gdb-gdbserver-0:16.3-3.1.el9_8.aarch64",
        "relates_to_product_reference": "AppStream-9.8.0.Z.MAIN.EUS"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "gdb-gdbserver-0:16.3-3.1.el9_8.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 9)",
          "product_id": "AppStream-9.8.0.Z.MAIN.EUS:gdb-gdbserver-0:16.3-3.1.el9_8.ppc64le"
        },
        "product_reference": "gdb-gdbserver-0:16.3-3.1.el9_8.ppc64le",
        "relates_to_product_reference": "AppStream-9.8.0.Z.MAIN.EUS"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "gdb-gdbserver-0:16.3-3.1.el9_8.s390x as a component of Red Hat Enterprise Linux AppStream (v. 9)",
          "product_id": "AppStream-9.8.0.Z.MAIN.EUS:gdb-gdbserver-0:16.3-3.1.el9_8.s390x"
        },
        "product_reference": "gdb-gdbserver-0:16.3-3.1.el9_8.s390x",
        "relates_to_product_reference": "AppStream-9.8.0.Z.MAIN.EUS"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "gdb-gdbserver-0:16.3-3.1.el9_8.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 9)",
          "product_id": "AppStream-9.8.0.Z.MAIN.EUS:gdb-gdbserver-0:16.3-3.1.el9_8.x86_64"
        },
        "product_reference": "gdb-gdbserver-0:16.3-3.1.el9_8.x86_64",
        "relates_to_product_reference": "AppStream-9.8.0.Z.MAIN.EUS"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "gdb-headless-0:16.3-3.1.el9_8.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9)",
          "product_id": "AppStream-9.8.0.Z.MAIN.EUS:gdb-headless-0:16.3-3.1.el9_8.aarch64"
        },
        "product_reference": "gdb-headless-0:16.3-3.1.el9_8.aarch64",
        "relates_to_product_reference": "AppStream-9.8.0.Z.MAIN.EUS"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "gdb-headless-0:16.3-3.1.el9_8.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 9)",
          "product_id": "AppStream-9.8.0.Z.MAIN.EUS:gdb-headless-0:16.3-3.1.el9_8.ppc64le"
        },
        "product_reference": "gdb-headless-0:16.3-3.1.el9_8.ppc64le",
        "relates_to_product_reference": "AppStream-9.8.0.Z.MAIN.EUS"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "gdb-headless-0:16.3-3.1.el9_8.s390x as a component of Red Hat Enterprise Linux AppStream (v. 9)",
          "product_id": "AppStream-9.8.0.Z.MAIN.EUS:gdb-headless-0:16.3-3.1.el9_8.s390x"
        },
        "product_reference": "gdb-headless-0:16.3-3.1.el9_8.s390x",
        "relates_to_product_reference": "AppStream-9.8.0.Z.MAIN.EUS"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "gdb-headless-0:16.3-3.1.el9_8.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 9)",
          "product_id": "AppStream-9.8.0.Z.MAIN.EUS:gdb-headless-0:16.3-3.1.el9_8.x86_64"
        },
        "product_reference": "gdb-headless-0:16.3-3.1.el9_8.x86_64",
        "relates_to_product_reference": "AppStream-9.8.0.Z.MAIN.EUS"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "gdb-minimal-0:16.3-3.1.el9_8.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9)",
          "product_id": "AppStream-9.8.0.Z.MAIN.EUS:gdb-minimal-0:16.3-3.1.el9_8.aarch64"
        },
        "product_reference": "gdb-minimal-0:16.3-3.1.el9_8.aarch64",
        "relates_to_product_reference": "AppStream-9.8.0.Z.MAIN.EUS"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "gdb-minimal-0:16.3-3.1.el9_8.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 9)",
          "product_id": "AppStream-9.8.0.Z.MAIN.EUS:gdb-minimal-0:16.3-3.1.el9_8.ppc64le"
        },
        "product_reference": "gdb-minimal-0:16.3-3.1.el9_8.ppc64le",
        "relates_to_product_reference": "AppStream-9.8.0.Z.MAIN.EUS"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "gdb-minimal-0:16.3-3.1.el9_8.s390x as a component of Red Hat Enterprise Linux AppStream (v. 9)",
          "product_id": "AppStream-9.8.0.Z.MAIN.EUS:gdb-minimal-0:16.3-3.1.el9_8.s390x"
        },
        "product_reference": "gdb-minimal-0:16.3-3.1.el9_8.s390x",
        "relates_to_product_reference": "AppStream-9.8.0.Z.MAIN.EUS"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "gdb-minimal-0:16.3-3.1.el9_8.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 9)",
          "product_id": "AppStream-9.8.0.Z.MAIN.EUS:gdb-minimal-0:16.3-3.1.el9_8.x86_64"
        },
        "product_reference": "gdb-minimal-0:16.3-3.1.el9_8.x86_64",
        "relates_to_product_reference": "AppStream-9.8.0.Z.MAIN.EUS"
      }
    ]
  },
  "vulnerabilities": [
    {
      "acknowledgments": [
        {
          "names": [
            "JD Marsters"
          ],
          "organization": "Bhut Red"
        }
      ],
      "cve": "CVE-2026-13732",
      "cwe": {
        "id": "CWE-787",
        "name": "Out-of-bounds Write"
      },
      "discovery_date": "2026-06-29T14:42:56.970000+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2494416"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in GDB\u0027s STABS debug format parser. The\nread_member_functions() function in gdb/stabsread.c contains a linked\nlist removal bug in the code that separates destructor and non-destructor\nmember functions of C++ classes. The bug causes the destructor entries to\nremain in the main function list while the list length counter is\ndecremented, resulting in an out-of-bounds write when the function list\nis copied to its final allocated array. An attacker can craft an ELF\nbinary with malicious .stab and .stabstr sections that triggers this\nout-of-bounds write when a user opens the file in GDB and performs any\nsymbol-inspection operation such as setting a breakpoint. The inferior\nprocess does not need to be executed. Under controlled conditions, this\nwas demonstrated to achieve execution of arbitrary commands within the\nGDB process.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "gdb: gdb: Out-of-bounds write in STABS parser read_member_functions() via crafted ELF",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "This flaw affects the STABS debug format parser in GDB, which is present\nand active in all currently supported Red Hat product streams that ship\nGDB. The STABS format is a legacy debug information format predating DWARF\nthat GDB parses automatically from .stab/.stabstr ELF sections. While GCC\nremoved STABS emitting support in GCC 13 and GDB deprecated STABS parsing\nin GDB 17, all deployed GDB versions parse STABS data without user opt-in.\nAn attacker can embed STABS sections in any ELF binary, including one\ncompiled with DWARF debug information, and GDB will parse both. The\nvulnerability requires the user to open the crafted binary in GDB and\nissue a symbol-inspection command, which is normal GDB usage.",
          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
        "fixed": [
          "AppStream-9.8.0.Z.MAIN.EUS:gdb-0:16.3-3.1.el9_8.aarch64",
          "AppStream-9.8.0.Z.MAIN.EUS:gdb-0:16.3-3.1.el9_8.ppc64le",
          "AppStream-9.8.0.Z.MAIN.EUS:gdb-0:16.3-3.1.el9_8.s390x",
          "AppStream-9.8.0.Z.MAIN.EUS:gdb-0:16.3-3.1.el9_8.src",
          "AppStream-9.8.0.Z.MAIN.EUS:gdb-0:16.3-3.1.el9_8.x86_64",
          "AppStream-9.8.0.Z.MAIN.EUS:gdb-debuginfo-0:16.3-3.1.el9_8.aarch64",
          "AppStream-9.8.0.Z.MAIN.EUS:gdb-debuginfo-0:16.3-3.1.el9_8.ppc64le",
          "AppStream-9.8.0.Z.MAIN.EUS:gdb-debuginfo-0:16.3-3.1.el9_8.s390x",
          "AppStream-9.8.0.Z.MAIN.EUS:gdb-debuginfo-0:16.3-3.1.el9_8.x86_64",
          "AppStream-9.8.0.Z.MAIN.EUS:gdb-debugsource-0:16.3-3.1.el9_8.aarch64",
          "AppStream-9.8.0.Z.MAIN.EUS:gdb-debugsource-0:16.3-3.1.el9_8.ppc64le",
          "AppStream-9.8.0.Z.MAIN.EUS:gdb-debugsource-0:16.3-3.1.el9_8.s390x",
          "AppStream-9.8.0.Z.MAIN.EUS:gdb-debugsource-0:16.3-3.1.el9_8.x86_64",
          "AppStream-9.8.0.Z.MAIN.EUS:gdb-doc-0:16.3-3.1.el9_8.noarch",
          "AppStream-9.8.0.Z.MAIN.EUS:gdb-gdbserver-0:16.3-3.1.el9_8.aarch64",
          "AppStream-9.8.0.Z.MAIN.EUS:gdb-gdbserver-0:16.3-3.1.el9_8.ppc64le",
          "AppStream-9.8.0.Z.MAIN.EUS:gdb-gdbserver-0:16.3-3.1.el9_8.s390x",
          "AppStream-9.8.0.Z.MAIN.EUS:gdb-gdbserver-0:16.3-3.1.el9_8.x86_64",
          "AppStream-9.8.0.Z.MAIN.EUS:gdb-headless-0:16.3-3.1.el9_8.aarch64",
          "AppStream-9.8.0.Z.MAIN.EUS:gdb-headless-0:16.3-3.1.el9_8.ppc64le",
          "AppStream-9.8.0.Z.MAIN.EUS:gdb-headless-0:16.3-3.1.el9_8.s390x",
          "AppStream-9.8.0.Z.MAIN.EUS:gdb-headless-0:16.3-3.1.el9_8.x86_64",
          "AppStream-9.8.0.Z.MAIN.EUS:gdb-minimal-0:16.3-3.1.el9_8.aarch64",
          "AppStream-9.8.0.Z.MAIN.EUS:gdb-minimal-0:16.3-3.1.el9_8.ppc64le",
          "AppStream-9.8.0.Z.MAIN.EUS:gdb-minimal-0:16.3-3.1.el9_8.s390x",
          "AppStream-9.8.0.Z.MAIN.EUS:gdb-minimal-0:16.3-3.1.el9_8.x86_64"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2026-13732"
        },
        {
          "category": "external",
          "summary": "RHBZ#2494416",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2494416"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2026-13732",
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-13732"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-13732",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-13732"
        }
      ],
      "release_date": "2026-08-06T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-09-29T20:40:48+00:00",
          "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258",
          "product_ids": [
            "AppStream-9.8.0.Z.MAIN.EUS:gdb-0:16.3-3.1.el9_8.aarch64",
            "AppStream-9.8.0.Z.MAIN.EUS:gdb-0:16.3-3.1.el9_8.ppc64le",
            "AppStream-9.8.0.Z.MAIN.EUS:gdb-0:16.3-3.1.el9_8.s390x",
            "AppStream-9.8.0.Z.MAIN.EUS:gdb-0:16.3-3.1.el9_8.src",
            "AppStream-9.8.0.Z.MAIN.EUS:gdb-0:16.3-3.1.el9_8.x86_64",
            "AppStream-9.8.0.Z.MAIN.EUS:gdb-debuginfo-0:16.3-3.1.el9_8.aarch64",
            "AppStream-9.8.0.Z.MAIN.EUS:gdb-debuginfo-0:16.3-3.1.el9_8.ppc64le",
            "AppStream-9.8.0.Z.MAIN.EUS:gdb-debuginfo-0:16.3-3.1.el9_8.s390x",
            "AppStream-9.8.0.Z.MAIN.EUS:gdb-debuginfo-0:16.3-3.1.el9_8.x86_64",
            "AppStream-9.8.0.Z.MAIN.EUS:gdb-debugsource-0:16.3-3.1.el9_8.aarch64",
            "AppStream-9.8.0.Z.MAIN.EUS:gdb-debugsource-0:16.3-3.1.el9_8.ppc64le",
            "AppStream-9.8.0.Z.MAIN.EUS:gdb-debugsource-0:16.3-3.1.el9_8.s390x",
            "AppStream-9.8.0.Z.MAIN.EUS:gdb-debugsource-0:16.3-3.1.el9_8.x86_64",
            "AppStream-9.8.0.Z.MAIN.EUS:gdb-doc-0:16.3-3.1.el9_8.noarch",
            "AppStream-9.8.0.Z.MAIN.EUS:gdb-gdbserver-0:16.3-3.1.el9_8.aarch64",
            "AppStream-9.8.0.Z.MAIN.EUS:gdb-gdbserver-0:16.3-3.1.el9_8.ppc64le",
            "AppStream-9.8.0.Z.MAIN.EUS:gdb-gdbserver-0:16.3-3.1.el9_8.s390x",
            "AppStream-9.8.0.Z.MAIN.EUS:gdb-gdbserver-0:16.3-3.1.el9_8.x86_64",
            "AppStream-9.8.0.Z.MAIN.EUS:gdb-headless-0:16.3-3.1.el9_8.aarch64",
            "AppStream-9.8.0.Z.MAIN.EUS:gdb-headless-0:16.3-3.1.el9_8.ppc64le",
            "AppStream-9.8.0.Z.MAIN.EUS:gdb-headless-0:16.3-3.1.el9_8.s390x",
            "AppStream-9.8.0.Z.MAIN.EUS:gdb-headless-0:16.3-3.1.el9_8.x86_64",
            "AppStream-9.8.0.Z.MAIN.EUS:gdb-minimal-0:16.3-3.1.el9_8.aarch64",
            "AppStream-9.8.0.Z.MAIN.EUS:gdb-minimal-0:16.3-3.1.el9_8.ppc64le",
            "AppStream-9.8.0.Z.MAIN.EUS:gdb-minimal-0:16.3-3.1.el9_8.s390x",
            "AppStream-9.8.0.Z.MAIN.EUS:gdb-minimal-0:16.3-3.1.el9_8.x86_64"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2026:73426"
        },
        {
          "category": "workaround",
          "details": "The following practices would help for avoiding exposure and mitigate this\nflaw:\n- Do not open untrusted or unknown ELF binaries in GDB without first\n  stripping debug sections. Use `objcopy --remove-section=.stab\n  --remove-section=.stabstr \u003cbinary\u003e` before debugging.\n- Use `readelf -S \u003cbinary\u003e | grep stab` to check for the presence of\n  STABS sections before opening a binary in GDB. Legitimate modern\n  binaries use DWARF, not STABS.\n- Consider using LLDB or other debuggers that do not support STABS for\n  analysis of untrusted binaries.\n- For automated environments (CI, test farms) that invoke GDB on\n  potentially untrusted binaries, run GDB in a sandboxed or containerized\n  environment with restricted filesystem access.\n- GDB 17+ deprecates STABS support but still parses it. GDB 18 (expected\n  late 2026/2027) will remove STABS support entirely.\n- GCC removed STABS emitting in GCC 13 (2023), so legitimately compiled\n  binaries from recent GCC versions will not contain STABS data.",
          "product_ids": [
            "AppStream-9.8.0.Z.MAIN.EUS:gdb-0:16.3-3.1.el9_8.aarch64",
            "AppStream-9.8.0.Z.MAIN.EUS:gdb-0:16.3-3.1.el9_8.ppc64le",
            "AppStream-9.8.0.Z.MAIN.EUS:gdb-0:16.3-3.1.el9_8.s390x",
            "AppStream-9.8.0.Z.MAIN.EUS:gdb-0:16.3-3.1.el9_8.src",
            "AppStream-9.8.0.Z.MAIN.EUS:gdb-0:16.3-3.1.el9_8.x86_64",
            "AppStream-9.8.0.Z.MAIN.EUS:gdb-debuginfo-0:16.3-3.1.el9_8.aarch64",
            "AppStream-9.8.0.Z.MAIN.EUS:gdb-debuginfo-0:16.3-3.1.el9_8.ppc64le",
            "AppStream-9.8.0.Z.MAIN.EUS:gdb-debuginfo-0:16.3-3.1.el9_8.s390x",
            "AppStream-9.8.0.Z.MAIN.EUS:gdb-debuginfo-0:16.3-3.1.el9_8.x86_64",
            "AppStream-9.8.0.Z.MAIN.EUS:gdb-debugsource-0:16.3-3.1.el9_8.aarch64",
            "AppStream-9.8.0.Z.MAIN.EUS:gdb-debugsource-0:16.3-3.1.el9_8.ppc64le",
            "AppStream-9.8.0.Z.MAIN.EUS:gdb-debugsource-0:16.3-3.1.el9_8.s390x",
            "AppStream-9.8.0.Z.MAIN.EUS:gdb-debugsource-0:16.3-3.1.el9_8.x86_64",
            "AppStream-9.8.0.Z.MAIN.EUS:gdb-doc-0:16.3-3.1.el9_8.noarch",
            "AppStream-9.8.0.Z.MAIN.EUS:gdb-gdbserver-0:16.3-3.1.el9_8.aarch64",
            "AppStream-9.8.0.Z.MAIN.EUS:gdb-gdbserver-0:16.3-3.1.el9_8.ppc64le",
            "AppStream-9.8.0.Z.MAIN.EUS:gdb-gdbserver-0:16.3-3.1.el9_8.s390x",
            "AppStream-9.8.0.Z.MAIN.EUS:gdb-gdbserver-0:16.3-3.1.el9_8.x86_64",
            "AppStream-9.8.0.Z.MAIN.EUS:gdb-headless-0:16.3-3.1.el9_8.aarch64",
            "AppStream-9.8.0.Z.MAIN.EUS:gdb-headless-0:16.3-3.1.el9_8.ppc64le",
            "AppStream-9.8.0.Z.MAIN.EUS:gdb-headless-0:16.3-3.1.el9_8.s390x",
            "AppStream-9.8.0.Z.MAIN.EUS:gdb-headless-0:16.3-3.1.el9_8.x86_64",
            "AppStream-9.8.0.Z.MAIN.EUS:gdb-minimal-0:16.3-3.1.el9_8.aarch64",
            "AppStream-9.8.0.Z.MAIN.EUS:gdb-minimal-0:16.3-3.1.el9_8.ppc64le",
            "AppStream-9.8.0.Z.MAIN.EUS:gdb-minimal-0:16.3-3.1.el9_8.s390x",
            "AppStream-9.8.0.Z.MAIN.EUS:gdb-minimal-0:16.3-3.1.el9_8.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "HIGH",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 7.0,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "AppStream-9.8.0.Z.MAIN.EUS:gdb-0:16.3-3.1.el9_8.aarch64",
            "AppStream-9.8.0.Z.MAIN.EUS:gdb-0:16.3-3.1.el9_8.ppc64le",
            "AppStream-9.8.0.Z.MAIN.EUS:gdb-0:16.3-3.1.el9_8.s390x",
            "AppStream-9.8.0.Z.MAIN.EUS:gdb-0:16.3-3.1.el9_8.src",
            "AppStream-9.8.0.Z.MAIN.EUS:gdb-0:16.3-3.1.el9_8.x86_64",
            "AppStream-9.8.0.Z.MAIN.EUS:gdb-debuginfo-0:16.3-3.1.el9_8.aarch64",
            "AppStream-9.8.0.Z.MAIN.EUS:gdb-debuginfo-0:16.3-3.1.el9_8.ppc64le",
            "AppStream-9.8.0.Z.MAIN.EUS:gdb-debuginfo-0:16.3-3.1.el9_8.s390x",
            "AppStream-9.8.0.Z.MAIN.EUS:gdb-debuginfo-0:16.3-3.1.el9_8.x86_64",
            "AppStream-9.8.0.Z.MAIN.EUS:gdb-debugsource-0:16.3-3.1.el9_8.aarch64",
            "AppStream-9.8.0.Z.MAIN.EUS:gdb-debugsource-0:16.3-3.1.el9_8.ppc64le",
            "AppStream-9.8.0.Z.MAIN.EUS:gdb-debugsource-0:16.3-3.1.el9_8.s390x",
            "AppStream-9.8.0.Z.MAIN.EUS:gdb-debugsource-0:16.3-3.1.el9_8.x86_64",
            "AppStream-9.8.0.Z.MAIN.EUS:gdb-doc-0:16.3-3.1.el9_8.noarch",
            "AppStream-9.8.0.Z.MAIN.EUS:gdb-gdbserver-0:16.3-3.1.el9_8.aarch64",
            "AppStream-9.8.0.Z.MAIN.EUS:gdb-gdbserver-0:16.3-3.1.el9_8.ppc64le",
            "AppStream-9.8.0.Z.MAIN.EUS:gdb-gdbserver-0:16.3-3.1.el9_8.s390x",
            "AppStream-9.8.0.Z.MAIN.EUS:gdb-gdbserver-0:16.3-3.1.el9_8.x86_64",
            "AppStream-9.8.0.Z.MAIN.EUS:gdb-headless-0:16.3-3.1.el9_8.aarch64",
            "AppStream-9.8.0.Z.MAIN.EUS:gdb-headless-0:16.3-3.1.el9_8.ppc64le",
            "AppStream-9.8.0.Z.MAIN.EUS:gdb-headless-0:16.3-3.1.el9_8.s390x",
            "AppStream-9.8.0.Z.MAIN.EUS:gdb-headless-0:16.3-3.1.el9_8.x86_64",
            "AppStream-9.8.0.Z.MAIN.EUS:gdb-minimal-0:16.3-3.1.el9_8.aarch64",
            "AppStream-9.8.0.Z.MAIN.EUS:gdb-minimal-0:16.3-3.1.el9_8.ppc64le",
            "AppStream-9.8.0.Z.MAIN.EUS:gdb-minimal-0:16.3-3.1.el9_8.s390x",
            "AppStream-9.8.0.Z.MAIN.EUS:gdb-minimal-0:16.3-3.1.el9_8.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "gdb: gdb: Out-of-bounds write in STABS parser read_member_functions() via crafted ELF"
    }
  ]
}

CVE-2026-13732 (GCVE-0-2026-13732)

Vulnerability from cvelistv5 – Published: 2026-08-31 19:23 – Updated: 2026-09-29 20:41

Title

Gdb: gdb: out-of-bounds write in stabs parser read_member_functions() via crafted elf

Summary

Severity

7 (High)


                        
                          CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-01 14:33 UTC

CWE

CWE-787 - Out-of-bounds Write

Assigner

redhat redhat root Scorecard

References

5 references

URL	Tags
https://access.redhat.com/errata/RHSA-2026:73425	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:73426	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:73427	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2026-13732	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2494416	issue-trackingx_refsource_REDHAT

Impacted products

6 products

Vendor	Product	Version
Red Hat	Red Hat Enterprise Linux 10	Unaffected: 0:16.3-3.1.el10_2 , < * (rpm) cpe:/o:redhat:enterprise_linux:10.2
Red Hat	Red Hat Enterprise Linux 8	Unaffected: 0:8.2-20.1.el8_10 , < * (rpm) cpe:/a:redhat:enterprise_linux:8::appstream
Red Hat	Red Hat Enterprise Linux 9	Unaffected: 0:16.3-3.1.el9_8 , < * (rpm) cpe:/a:redhat:enterprise_linux:9::appstream
Red Hat	Red Hat Enterprise Linux 6	cpe:/o:redhat:enterprise_linux:6
Red Hat	Red Hat Enterprise Linux 7	cpe:/o:redhat:enterprise_linux:7
Red Hat	Red Hat Hardened Images	cpe:/a:redhat:hummingbird:1

Date Public

2026-08-06 00:00

Credits

Red Hat would like to thank JD Marsters (Bhut Red) for reporting this issue.

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-13732",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-09-01T14:33:22.469791Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-09-01T14:59:18.300Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/o:redhat:enterprise_linux:10.2"
          ],
          "defaultStatus": "affected",
          "packageName": "gdb",
          "product": "Red Hat Enterprise Linux 10",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "0:16.3-3.1.el10_2",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:enterprise_linux:8::appstream"
          ],
          "defaultStatus": "affected",
          "packageName": "gdb",
          "product": "Red Hat Enterprise Linux 8",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "0:8.2-20.1.el8_10",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:enterprise_linux:9::appstream"
          ],
          "defaultStatus": "affected",
          "packageName": "gdb",
          "product": "Red Hat Enterprise Linux 9",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "0:16.3-3.1.el9_8",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/o:redhat:enterprise_linux:6"
          ],
          "defaultStatus": "affected",
          "packageName": "gdb",
          "product": "Red Hat Enterprise Linux 6",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/o:redhat:enterprise_linux:7"
          ],
          "defaultStatus": "affected",
          "packageName": "gdb",
          "product": "Red Hat Enterprise Linux 7",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:hummingbird:1"
          ],
          "defaultStatus": "affected",
          "packageName": "gdb",
          "product": "Red Hat Hardened Images",
          "vendor": "Red Hat"
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "Red Hat would like to thank JD Marsters (Bhut Red) for reporting this issue."
        }
      ],
      "datePublic": "2026-08-06T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "A flaw was found in GDB\u0027s STABS debug format parser. The\nread_member_functions() function in gdb/stabsread.c contains a linked\nlist removal bug in the code that separates destructor and non-destructor\nmember functions of C++ classes. The bug causes the destructor entries to\nremain in the main function list while the list length counter is\ndecremented, resulting in an out-of-bounds write when the function list\nis copied to its final allocated array. An attacker can craft an ELF\nbinary with malicious .stab and .stabstr sections that triggers this\nout-of-bounds write when a user opens the file in GDB and performs any\nsymbol-inspection operation such as setting a breakpoint. The inferior\nprocess does not need to be executed. Under controlled conditions, this\nwas demonstrated to achieve execution of arbitrary commands within the\nGDB process."
        }
      ],
      "metrics": [
        {
          "other": {
            "content": {
              "namespace": "https://access.redhat.com/security/updates/classification/",
              "value": "Important"
            },
            "type": "Red Hat severity rating"
          }
        },
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 7,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "format": "CVSS"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-787",
              "description": "Out-of-bounds Write",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-29T20:41:13.792Z",
        "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "shortName": "redhat"
      },
      "references": [
        {
          "name": "RHSA-2026:73425",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2026:73425"
        },
        {
          "name": "RHSA-2026:73426",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2026:73426"
        },
        {
          "name": "RHSA-2026:73427",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2026:73427"
        },
        {
          "tags": [
            "vdb-entry",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/security/cve/CVE-2026-13732"
        },
        {
          "name": "RHBZ#2494416",
          "tags": [
            "issue-tracking",
            "x_refsource_REDHAT"
          ],
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2494416"
        }
      ],
      "timeline": [
        {
          "lang": "en",
          "time": "2026-06-29T14:42:56.970Z",
          "value": "Reported to Red Hat."
        },
        {
          "lang": "en",
          "time": "2026-08-06T00:00:00.000Z",
          "value": "Made public."
        }
      ],
      "title": "Gdb: gdb: out-of-bounds write in stabs parser read_member_functions() via crafted elf",
      "workarounds": [
        {
          "lang": "en",
          "value": "The following practices would help for avoiding exposure and mitigate this\nflaw:\n- Do not open untrusted or unknown ELF binaries in GDB without first\n  stripping debug sections. Use `objcopy --remove-section=.stab\n  --remove-section=.stabstr \u003cbinary\u003e` before debugging.\n- Use `readelf -S \u003cbinary\u003e | grep stab` to check for the presence of\n  STABS sections before opening a binary in GDB. Legitimate modern\n  binaries use DWARF, not STABS.\n- Consider using LLDB or other debuggers that do not support STABS for\n  analysis of untrusted binaries.\n- For automated environments (CI, test farms) that invoke GDB on\n  potentially untrusted binaries, run GDB in a sandboxed or containerized\n  environment with restricted filesystem access.\n- GDB 17+ deprecates STABS support but still parses it. GDB 18 (expected\n  late 2026/2027) will remove STABS support entirely.\n- GCC removed STABS emitting in GCC 13 (2023), so legitimately compiled\n  binaries from recent GCC versions will not contain STABS data."
        }
      ],
      "x_generator": {
        "engine": "cvelib 1.8.0"
      },
      "x_redhatCweChain": "CWE-787: Out-of-bounds Write"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
    "assignerShortName": "redhat",
    "cveId": "CVE-2026-13732",
    "datePublished": "2026-08-31T19:23:18.741Z",
    "dateReserved": "2026-06-29T14:42:33.339Z",
    "dateUpdated": "2026-09-29T20:41:13.792Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

RHSA-2026:73426

CVE-2026-13732 (GCVE-0-2026-13732)

Tags

Sightings

Nomenclature

Related by attack behaviour