Vulnerability-Lookup

SUSE-SU-2026:20179-1

Vulnerability from csaf_suse - Published: 2026-01-29 16:09 - Updated: 2026-09-16 19:27

Summary

Security update for gpg2

Severity

Important

Notes

Title of the patch: Security update for gpg2

Description of the patch: This update for gpg2 fixes the following issues: - CVE-2026-24882: stack-based buffer overflow in TPM2 PKDECRYPT for TPM-backed RSA and ECC keys (bsc#1257396). - CVE-2026-24883: denial of service due to long signature packet length causing parse_signature to return success with sig->data[] set to a NULL value (bsc#1257395). - gpg.fail/filename: GnuPG Accepts Path Separators and Path Traversals in Literal Data "Filename" Field (bsc#1256389).

Patchnames: SUSE-SL-Micro-6.2-221

CVE-2026-24882

7.8 (High)


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

Affected products

Recommended 4 products

Product	Version	Remediation
Unresolved product id: SUSE Linux Micro 6.2:gpg2-2.5.5-160000.4.1.aarch64	—	Vendor Fix
Unresolved product id: SUSE Linux Micro 6.2:gpg2-2.5.5-160000.4.1.ppc64le	—	Vendor Fix
Unresolved product id: SUSE Linux Micro 6.2:gpg2-2.5.5-160000.4.1.s390x	—	Vendor Fix
Unresolved product id: SUSE Linux Micro 6.2:gpg2-2.5.5-160000.4.1.x86_64	—	Vendor Fix

Threats

Impact important

CVE-2026-24883

7.5 (High)


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

Affected products

Recommended 4 products, the same list as for CVE-2026-24882

Threats

Impact important

References

13 references

URL	Category
https://www.suse.com/support/security/rating/	external
https://ftp.suse.com/pub/projects/security/csaf/s…	self
https://www.suse.com/support/update/announcement/…	self
https://lists.suse.com/pipermail/sle-security-upd…	self
https://bugzilla.suse.com/1256389	self
https://bugzilla.suse.com/1257395	self
https://bugzilla.suse.com/1257396	self
https://www.suse.com/security/cve/CVE-2026-24882/	self
https://www.suse.com/security/cve/CVE-2026-24883/	self
https://www.suse.com/security/cve/CVE-2026-24882	external
https://bugzilla.suse.com/1257396	external
https://www.suse.com/security/cve/CVE-2026-24883	external
https://bugzilla.suse.com/1257395	external

JSON

To clipboard

{
  "document": {
    "aggregate_severity": {
      "namespace": "https://www.suse.com/support/security/rating/",
      "text": "important"
    },
    "category": "csaf_security_advisory",
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        "text": "This update for gpg2 fixes the following issues:\n\n- CVE-2026-24882: stack-based buffer overflow in TPM2 PKDECRYPT for TPM-backed RSA and ECC keys (bsc#1257396).\n- CVE-2026-24883: denial of service due to long signature packet length causing parse_signature to return success with sig-\u003edata[] set to a NULL value (bsc#1257395).\n- gpg.fail/filename: GnuPG Accepts Path Separators and Path Traversals in Literal Data \"Filename\" Field (bsc#1256389).\n",
        "title": "Description of the patch"
      },
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        "category": "details",
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        "title": "Patchnames"
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        "category": "legal_disclaimer",
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        "title": "Terms of use"
      }
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    "publisher": {
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        "category": "self",
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      },
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        "category": "self",
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        "url": "https://www.suse.com/security/cve/CVE-2026-24883/"
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    "relationships": [
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        "full_product_name": {
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          "product_id": "SUSE Linux Micro 6.2:gpg2-2.5.5-160000.4.1.aarch64"
        },
        "product_reference": "gpg2-2.5.5-160000.4.1.aarch64",
        "relates_to_product_reference": "SUSE Linux Micro 6.2"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
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          "product_id": "SUSE Linux Micro 6.2:gpg2-2.5.5-160000.4.1.ppc64le"
        },
        "product_reference": "gpg2-2.5.5-160000.4.1.ppc64le",
        "relates_to_product_reference": "SUSE Linux Micro 6.2"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "gpg2-2.5.5-160000.4.1.s390x as component of SUSE Linux Micro 6.2",
          "product_id": "SUSE Linux Micro 6.2:gpg2-2.5.5-160000.4.1.s390x"
        },
        "product_reference": "gpg2-2.5.5-160000.4.1.s390x",
        "relates_to_product_reference": "SUSE Linux Micro 6.2"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
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          "product_id": "SUSE Linux Micro 6.2:gpg2-2.5.5-160000.4.1.x86_64"
        },
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        "relates_to_product_reference": "SUSE Linux Micro 6.2"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2026-24882",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2026-24882"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "In GnuPG before 2.5.17, a stack-based buffer overflow exists in tpm2daemon during handling of the PKDECRYPT command for TPM-backed RSA and ECC keys.",
          "title": "CVE description"
        }
      ],
      "product_status": {
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          "SUSE Linux Micro 6.2:gpg2-2.5.5-160000.4.1.aarch64",
          "SUSE Linux Micro 6.2:gpg2-2.5.5-160000.4.1.ppc64le",
          "SUSE Linux Micro 6.2:gpg2-2.5.5-160000.4.1.s390x",
          "SUSE Linux Micro 6.2:gpg2-2.5.5-160000.4.1.x86_64"
        ]
      },
      "references": [
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          "summary": "CVE-2026-24882",
          "url": "https://www.suse.com/security/cve/CVE-2026-24882"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1257396 for CVE-2026-24882",
          "url": "https://bugzilla.suse.com/1257396"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
          "product_ids": [
            "SUSE Linux Micro 6.2:gpg2-2.5.5-160000.4.1.aarch64",
            "SUSE Linux Micro 6.2:gpg2-2.5.5-160000.4.1.ppc64le",
            "SUSE Linux Micro 6.2:gpg2-2.5.5-160000.4.1.s390x",
            "SUSE Linux Micro 6.2:gpg2-2.5.5-160000.4.1.x86_64"
          ]
        }
      ],
      "scores": [
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            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
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            "SUSE Linux Micro 6.2:gpg2-2.5.5-160000.4.1.ppc64le",
            "SUSE Linux Micro 6.2:gpg2-2.5.5-160000.4.1.s390x",
            "SUSE Linux Micro 6.2:gpg2-2.5.5-160000.4.1.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2026-01-29T16:09:32Z",
          "details": "important"
        }
      ],
      "title": "CVE-2026-24882"
    },
    {
      "cve": "CVE-2026-24883",
      "ids": [
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          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2026-24883"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "In GnuPG before 2.5.17, a long signature packet length causes parse_signature to return success with sig-\u003edata[] set to a NULL value, leading to a denial of service (application crash).",
          "title": "CVE description"
        }
      ],
      "product_status": {
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          "SUSE Linux Micro 6.2:gpg2-2.5.5-160000.4.1.aarch64",
          "SUSE Linux Micro 6.2:gpg2-2.5.5-160000.4.1.ppc64le",
          "SUSE Linux Micro 6.2:gpg2-2.5.5-160000.4.1.s390x",
          "SUSE Linux Micro 6.2:gpg2-2.5.5-160000.4.1.x86_64"
        ]
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          "url": "https://www.suse.com/security/cve/CVE-2026-24883"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1257395 for CVE-2026-24883",
          "url": "https://bugzilla.suse.com/1257395"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
          "product_ids": [
            "SUSE Linux Micro 6.2:gpg2-2.5.5-160000.4.1.aarch64",
            "SUSE Linux Micro 6.2:gpg2-2.5.5-160000.4.1.ppc64le",
            "SUSE Linux Micro 6.2:gpg2-2.5.5-160000.4.1.s390x",
            "SUSE Linux Micro 6.2:gpg2-2.5.5-160000.4.1.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "products": [
            "SUSE Linux Micro 6.2:gpg2-2.5.5-160000.4.1.aarch64",
            "SUSE Linux Micro 6.2:gpg2-2.5.5-160000.4.1.ppc64le",
            "SUSE Linux Micro 6.2:gpg2-2.5.5-160000.4.1.s390x",
            "SUSE Linux Micro 6.2:gpg2-2.5.5-160000.4.1.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2026-01-29T16:09:32Z",
          "details": "important"
        }
      ],
      "title": "CVE-2026-24883"
    }
  ]
}

CVE-2026-24882 (GCVE-0-2026-24882)

Vulnerability from cvelistv5 – Published: 2026-01-27 18:40 – Updated: 2026-07-15 01:16

Summary

In GnuPG before 2.5.17, a stack-based buffer overflow exists in tpm2daemon during handling of the PKDECRYPT command for TPM-backed RSA and ECC keys.

Severity

8.4 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:N/UI:N/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 2026-01-27 20:07 UTC

CWE

CWE-121 - Stack-based Buffer Overflow

Assigner

mitre mitre root

References

7 references

URL	Tags
https://www.openwall.com/lists/oss-security/2026/…
https://dev.gnupg.org/T8045
https://access.redhat.com/security/cve/CVE-2026-24882	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2433464	issue-trackingx_refsource_REDHAT
https://security.access.redhat.com/data/csaf/v2/v…	x_sadp-csaf-vex
https://access.redhat.com/errata/RHSA-2026:2753	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:2719	vendor-advisoryx_refsource_REDHAT

Impacted products

7 products

Vendor	Product	Version
GnuPG	GnuPG	Affected: 0 , < 2.5.17 (semver) cpe:2.3:a:gnupg:gnupg::::::::
Red Hat	Red Hat Enterprise Linux 10	Unaffected: 0:2.4.5-4.el10_1 , < * (rpm) cpe:/o:redhat:enterprise_linux:10.1
Red Hat	Red Hat Enterprise Linux 10.0 Extended Update Support	Unaffected: 0:2.4.5-2.el10_0.2 , < * (rpm) cpe:/o:redhat:enterprise_linux_eus:10.0
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 Enterprise Linux 8	cpe:/o:redhat:enterprise_linux:8
Red Hat	Red Hat Enterprise Linux 9	cpe:/o:redhat:enterprise_linux:9

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-24882",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-01-27T20:07:25.362188Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-01-27T20:07:38.876Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "affected": [
          {
            "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
            "cpes": [
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            "packageName": "gnupg2",
            "product": "Red Hat Enterprise Linux 10",
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          },
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            ],
            "defaultStatus": "affected",
            "packageName": "gnupg2",
            "product": "Red Hat Enterprise Linux 10.0 Extended Update Support",
            "vendor": "Red Hat",
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                "versionType": "rpm"
              }
            ]
          },
          {
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            "cpes": [
              "cpe:/o:redhat:enterprise_linux:6"
            ],
            "defaultStatus": "unaffected",
            "packageName": "gnupg2",
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            "vendor": "Red Hat"
          },
          {
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            "cpes": [
              "cpe:/o:redhat:enterprise_linux:7"
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            "defaultStatus": "unaffected",
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CVE-2026-24883 (GCVE-0-2026-24883)

Vulnerability from cvelistv5 – Published: 2026-01-27 18:43 – Updated: 2026-01-28 15:52

Summary

In GnuPG before 2.5.17, a long signature packet length causes parse_signature to return success with sig->data[] set to a NULL value, leading to a denial of service (application crash).

Severity

3.7 (Low)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-01-27 20:02 UTC

CWE

CWE-476 - NULL Pointer Dereference

Assigner

mitre mitre root

References

2 references

URL	Tags
https://www.openwall.com/lists/oss-security/2026/…
https://dev.gnupg.org/T8049

Impacted products

1 product

Vendor	Product	Version
GnuPG	GnuPG	Affected: 2.5.3 , < 2.5.17 (semver) cpe:2.3:a:gnupg:gnupg::::::::

Show details on NVD website

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Sightings

Author	Source	Type	Date	Other

Nomenclature

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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.
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SUSE-SU-2026:20179-1

CVE-2026-24882 (GCVE-0-2026-24882)

CVE-2026-24883 (GCVE-0-2026-24883)

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