GCVE Workshop - 22 September 2026 (14:00-18:00), Luxembourg Before The Vulnopticon Conference - Registration

SUSE-SU-2025:4407-1

Vulnerability from csaf_suse - Published: 2025-12-15 16:54 - Updated: 2025-12-15 16:54
Summary
Security update for xkbcomp
Severity
Moderate
Notes
Title of the patch: Security update for xkbcomp
Description of the patch: This update for xkbcomp fixes the following issues: - CVE-2018-15863: NULL pointer dereference triggered by a a crafted keymap file with a no-op modmask expression can lead to a crash (bsc#1105832). - CVE-2018-15861: NULL pointer dereference triggered by a crafted keymap file that induces an `xkb_intern_atom` failure can lead to a crash (bsc#1105832). - CVE-2018-15859: NULL pointer dereference triggered by a specially a crafted keymap file can lead to a crash (bsc#1105832). - CVE-2018-15853: endless recursion triggered by a crafted keymap file that induces boolean negation can lead to a crash (bsc#1105832).
Patchnames: SUSE-2025-4407,SUSE-SLE-SERVER-12-SP5-LTSS-EXTENDED-SECURITY-2025-4407
Terms of use: CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).
CVE-2018-15853
3.3 (Low)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
Affected products
Product Identifier Version Remediation
Unresolved product id: SUSE Linux Enterprise Server LTSS Extended Security 12 SP5:xkbcomp-1.2.4-11.3.1.x86_64 —
Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server LTSS Extended Security 12 SP5:xkbcomp-devel-1.2.4-11.3.1.x86_64 —
Vendor Fix
Threats
Impact low
CVE-2018-15859
3.3 (Low)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
Affected products
Recommended 2 products, the same list as for CVE-2018-15853
Threats
Impact low
CVE-2018-15861
3.3 (Low)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
Affected products
Recommended 2 products, the same list as for CVE-2018-15853
Threats
Impact low
CVE-2018-15863
3.3 (Low)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
Affected products
Recommended 2 products, the same list as for CVE-2018-15853
Threats
Impact low
References
To clipboard 

{
  "document": {
    "aggregate_severity": {
      "namespace": "https://www.suse.com/support/security/rating/",
      "text": "moderate"
    },
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
      "text": "Copyright 2024 SUSE LLC. All rights reserved.",
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "en",
    "notes": [
      {
        "category": "summary",
        "text": "Security update for xkbcomp",
        "title": "Title of the patch"
      },
      {
        "category": "description",
        "text": "This update for xkbcomp fixes the following issues:\n\n- CVE-2018-15863: NULL pointer dereference triggered by a a crafted keymap file with a no-op modmask expression can\n  lead to a crash (bsc#1105832).\n- CVE-2018-15861: NULL pointer dereference triggered by a crafted keymap file that induces an `xkb_intern_atom` failure\n  can lead to a crash (bsc#1105832).\n- CVE-2018-15859: NULL pointer dereference triggered by a specially a crafted keymap file can lead to a crash\n  (bsc#1105832).\n- CVE-2018-15853: endless recursion triggered by a crafted keymap file that induces boolean negation can lead to a\n  crash (bsc#1105832).\n",
        "title": "Description of the patch"
      },
      {
        "category": "details",
        "text": "SUSE-2025-4407,SUSE-SLE-SERVER-12-SP5-LTSS-EXTENDED-SECURITY-2025-4407",
        "title": "Patchnames"
      },
      {
        "category": "legal_disclaimer",
        "text": "CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).",
        "title": "Terms of use"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "https://www.suse.com/support/security/contact/",
      "name": "SUSE Product Security Team",
      "namespace": "https://www.suse.com/"
    },
    "references": [
      {
        "category": "external",
        "summary": "SUSE ratings",
        "url": "https://www.suse.com/support/security/rating/"
      },
      {
        "category": "self",
        "summary": "URL of this CSAF notice",
        "url": "https://ftp.suse.com/pub/projects/security/csaf/suse-su-2025_4407-1.json"
      },
      {
        "category": "self",
        "summary": "URL for SUSE-SU-2025:4407-1",
        "url": "https://www.suse.com/support/update/announcement/2025/suse-su-20254407-1/"
      },
      {
        "category": "self",
        "summary": "E-Mail link for SUSE-SU-2025:4407-1",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2025-December/023553.html"
      },
      {
        "category": "self",
        "summary": "SUSE Bug 1105832",
        "url": "https://bugzilla.suse.com/1105832"
      },
      {
        "category": "self",
        "summary": "SUSE CVE CVE-2018-15853 page",
        "url": "https://www.suse.com/security/cve/CVE-2018-15853/"
      },
      {
        "category": "self",
        "summary": "SUSE CVE CVE-2018-15859 page",
        "url": "https://www.suse.com/security/cve/CVE-2018-15859/"
      },
      {
        "category": "self",
        "summary": "SUSE CVE CVE-2018-15861 page",
        "url": "https://www.suse.com/security/cve/CVE-2018-15861/"
      },
      {
        "category": "self",
        "summary": "SUSE CVE CVE-2018-15863 page",
        "url": "https://www.suse.com/security/cve/CVE-2018-15863/"
      }
    ],
    "title": "Security update for xkbcomp",
    "tracking": {
      "current_release_date": "2025-12-15T16:54:15Z",
      "generator": {
        "date": "2025-12-15T16:54:15Z",
        "engine": {
          "name": "cve-database.git:bin/generate-csaf.pl",
          "version": "1"
        }
      },
      "id": "SUSE-SU-2025:4407-1",
      "initial_release_date": "2025-12-15T16:54:15Z",
      "revision_history": [
        {
          "date": "2025-12-15T16:54:15Z",
          "number": "1",
          "summary": "Current version"
        }
      ],
      "status": "final",
      "version": "1"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version",
                "name": "xkbcomp-1.2.4-11.3.1.aarch64",
                "product": {
                  "name": "xkbcomp-1.2.4-11.3.1.aarch64",
                  "product_id": "xkbcomp-1.2.4-11.3.1.aarch64"
                }
              },
              {
                "category": "product_version",
                "name": "xkbcomp-devel-1.2.4-11.3.1.aarch64",
                "product": {
                  "name": "xkbcomp-devel-1.2.4-11.3.1.aarch64",
                  "product_id": "xkbcomp-devel-1.2.4-11.3.1.aarch64"
                }
              }
            ],
            "category": "architecture",
            "name": "aarch64"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "xkbcomp-1.2.4-11.3.1.i586",
                "product": {
                  "name": "xkbcomp-1.2.4-11.3.1.i586",
                  "product_id": "xkbcomp-1.2.4-11.3.1.i586"
                }
              },
              {
                "category": "product_version",
                "name": "xkbcomp-devel-1.2.4-11.3.1.i586",
                "product": {
                  "name": "xkbcomp-devel-1.2.4-11.3.1.i586",
                  "product_id": "xkbcomp-devel-1.2.4-11.3.1.i586"
                }
              }
            ],
            "category": "architecture",
            "name": "i586"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "xkbcomp-1.2.4-11.3.1.ppc64le",
                "product": {
                  "name": "xkbcomp-1.2.4-11.3.1.ppc64le",
                  "product_id": "xkbcomp-1.2.4-11.3.1.ppc64le"
                }
              },
              {
                "category": "product_version",
                "name": "xkbcomp-devel-1.2.4-11.3.1.ppc64le",
                "product": {
                  "name": "xkbcomp-devel-1.2.4-11.3.1.ppc64le",
                  "product_id": "xkbcomp-devel-1.2.4-11.3.1.ppc64le"
                }
              }
            ],
            "category": "architecture",
            "name": "ppc64le"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "xkbcomp-1.2.4-11.3.1.s390",
                "product": {
                  "name": "xkbcomp-1.2.4-11.3.1.s390",
                  "product_id": "xkbcomp-1.2.4-11.3.1.s390"
                }
              },
              {
                "category": "product_version",
                "name": "xkbcomp-devel-1.2.4-11.3.1.s390",
                "product": {
                  "name": "xkbcomp-devel-1.2.4-11.3.1.s390",
                  "product_id": "xkbcomp-devel-1.2.4-11.3.1.s390"
                }
              }
            ],
            "category": "architecture",
            "name": "s390"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "xkbcomp-1.2.4-11.3.1.s390x",
                "product": {
                  "name": "xkbcomp-1.2.4-11.3.1.s390x",
                  "product_id": "xkbcomp-1.2.4-11.3.1.s390x"
                }
              },
              {
                "category": "product_version",
                "name": "xkbcomp-devel-1.2.4-11.3.1.s390x",
                "product": {
                  "name": "xkbcomp-devel-1.2.4-11.3.1.s390x",
                  "product_id": "xkbcomp-devel-1.2.4-11.3.1.s390x"
                }
              }
            ],
            "category": "architecture",
            "name": "s390x"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "xkbcomp-1.2.4-11.3.1.x86_64",
                "product": {
                  "name": "xkbcomp-1.2.4-11.3.1.x86_64",
                  "product_id": "xkbcomp-1.2.4-11.3.1.x86_64"
                }
              },
              {
                "category": "product_version",
                "name": "xkbcomp-devel-1.2.4-11.3.1.x86_64",
                "product": {
                  "name": "xkbcomp-devel-1.2.4-11.3.1.x86_64",
                  "product_id": "xkbcomp-devel-1.2.4-11.3.1.x86_64"
                }
              }
            ],
            "category": "architecture",
            "name": "x86_64"
          },
          {
            "branches": [
              {
                "category": "product_name",
                "name": "SUSE Linux Enterprise Server LTSS Extended Security 12 SP5",
                "product": {
                  "name": "SUSE Linux Enterprise Server LTSS Extended Security 12 SP5",
                  "product_id": "SUSE Linux Enterprise Server LTSS Extended Security 12 SP5",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:suse:sles-ltss-extended-security:12:sp5"
                  }
                }
              }
            ],
            "category": "product_family",
            "name": "SUSE Linux Enterprise"
          }
        ],
        "category": "vendor",
        "name": "SUSE"
      }
    ],
    "relationships": [
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "xkbcomp-1.2.4-11.3.1.x86_64 as component of SUSE Linux Enterprise Server LTSS Extended Security 12 SP5",
          "product_id": "SUSE Linux Enterprise Server LTSS Extended Security 12 SP5:xkbcomp-1.2.4-11.3.1.x86_64"
        },
        "product_reference": "xkbcomp-1.2.4-11.3.1.x86_64",
        "relates_to_product_reference": "SUSE Linux Enterprise Server LTSS Extended Security 12 SP5"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "xkbcomp-devel-1.2.4-11.3.1.x86_64 as component of SUSE Linux Enterprise Server LTSS Extended Security 12 SP5",
          "product_id": "SUSE Linux Enterprise Server LTSS Extended Security 12 SP5:xkbcomp-devel-1.2.4-11.3.1.x86_64"
        },
        "product_reference": "xkbcomp-devel-1.2.4-11.3.1.x86_64",
        "relates_to_product_reference": "SUSE Linux Enterprise Server LTSS Extended Security 12 SP5"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2018-15853",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2018-15853"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "Endless recursion exists in xkbcomp/expr.c in xkbcommon and libxkbcommon before 0.8.1, which could be used by local attackers to crash xkbcommon users by supplying a crafted keymap file that triggers boolean negation.",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "recommended": [
          "SUSE Linux Enterprise Server LTSS Extended Security 12 SP5:xkbcomp-1.2.4-11.3.1.x86_64",
          "SUSE Linux Enterprise Server LTSS Extended Security 12 SP5:xkbcomp-devel-1.2.4-11.3.1.x86_64"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2018-15853",
          "url": "https://www.suse.com/security/cve/CVE-2018-15853"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1105832 for CVE-2018-15853",
          "url": "https://bugzilla.suse.com/1105832"
        }
      ],
      "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 Enterprise Server LTSS Extended Security 12 SP5:xkbcomp-1.2.4-11.3.1.x86_64",
            "SUSE Linux Enterprise Server LTSS Extended Security 12 SP5:xkbcomp-devel-1.2.4-11.3.1.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 3.3,
            "baseSeverity": "LOW",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L",
            "version": "3.1"
          },
          "products": [
            "SUSE Linux Enterprise Server LTSS Extended Security 12 SP5:xkbcomp-1.2.4-11.3.1.x86_64",
            "SUSE Linux Enterprise Server LTSS Extended Security 12 SP5:xkbcomp-devel-1.2.4-11.3.1.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2025-12-15T16:54:15Z",
          "details": "low"
        }
      ],
      "title": "CVE-2018-15853"
    },
    {
      "cve": "CVE-2018-15859",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2018-15859"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "Unchecked NULL pointer usage when parsing invalid atoms in ExprResolveLhs in xkbcomp/expr.c in xkbcommon before 0.8.2 could be used by local attackers to crash (NULL pointer dereference) the xkbcommon parser by supplying a crafted keymap file, because lookup failures are mishandled.",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "recommended": [
          "SUSE Linux Enterprise Server LTSS Extended Security 12 SP5:xkbcomp-1.2.4-11.3.1.x86_64",
          "SUSE Linux Enterprise Server LTSS Extended Security 12 SP5:xkbcomp-devel-1.2.4-11.3.1.x86_64"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2018-15859",
          "url": "https://www.suse.com/security/cve/CVE-2018-15859"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1105832 for CVE-2018-15859",
          "url": "https://bugzilla.suse.com/1105832"
        }
      ],
      "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 Enterprise Server LTSS Extended Security 12 SP5:xkbcomp-1.2.4-11.3.1.x86_64",
            "SUSE Linux Enterprise Server LTSS Extended Security 12 SP5:xkbcomp-devel-1.2.4-11.3.1.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 3.3,
            "baseSeverity": "LOW",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L",
            "version": "3.1"
          },
          "products": [
            "SUSE Linux Enterprise Server LTSS Extended Security 12 SP5:xkbcomp-1.2.4-11.3.1.x86_64",
            "SUSE Linux Enterprise Server LTSS Extended Security 12 SP5:xkbcomp-devel-1.2.4-11.3.1.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2025-12-15T16:54:15Z",
          "details": "low"
        }
      ],
      "title": "CVE-2018-15859"
    },
    {
      "cve": "CVE-2018-15861",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2018-15861"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "Unchecked NULL pointer usage in ExprResolveLhs in xkbcomp/expr.c in xkbcommon before 0.8.2 could be used by local attackers to crash (NULL pointer dereference) the xkbcommon parser by supplying a crafted keymap file that triggers an xkb_intern_atom failure.",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "recommended": [
          "SUSE Linux Enterprise Server LTSS Extended Security 12 SP5:xkbcomp-1.2.4-11.3.1.x86_64",
          "SUSE Linux Enterprise Server LTSS Extended Security 12 SP5:xkbcomp-devel-1.2.4-11.3.1.x86_64"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2018-15861",
          "url": "https://www.suse.com/security/cve/CVE-2018-15861"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1105832 for CVE-2018-15861",
          "url": "https://bugzilla.suse.com/1105832"
        }
      ],
      "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 Enterprise Server LTSS Extended Security 12 SP5:xkbcomp-1.2.4-11.3.1.x86_64",
            "SUSE Linux Enterprise Server LTSS Extended Security 12 SP5:xkbcomp-devel-1.2.4-11.3.1.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 3.3,
            "baseSeverity": "LOW",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L",
            "version": "3.1"
          },
          "products": [
            "SUSE Linux Enterprise Server LTSS Extended Security 12 SP5:xkbcomp-1.2.4-11.3.1.x86_64",
            "SUSE Linux Enterprise Server LTSS Extended Security 12 SP5:xkbcomp-devel-1.2.4-11.3.1.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2025-12-15T16:54:15Z",
          "details": "low"
        }
      ],
      "title": "CVE-2018-15861"
    },
    {
      "cve": "CVE-2018-15863",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2018-15863"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "Unchecked NULL pointer usage in ResolveStateAndPredicate in xkbcomp/compat.c in xkbcommon before 0.8.2 could be used by local attackers to crash (NULL pointer dereference) the xkbcommon parser by supplying a crafted keymap file with a no-op modmask expression.",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "recommended": [
          "SUSE Linux Enterprise Server LTSS Extended Security 12 SP5:xkbcomp-1.2.4-11.3.1.x86_64",
          "SUSE Linux Enterprise Server LTSS Extended Security 12 SP5:xkbcomp-devel-1.2.4-11.3.1.x86_64"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2018-15863",
          "url": "https://www.suse.com/security/cve/CVE-2018-15863"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1105832 for CVE-2018-15863",
          "url": "https://bugzilla.suse.com/1105832"
        }
      ],
      "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 Enterprise Server LTSS Extended Security 12 SP5:xkbcomp-1.2.4-11.3.1.x86_64",
            "SUSE Linux Enterprise Server LTSS Extended Security 12 SP5:xkbcomp-devel-1.2.4-11.3.1.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 3.3,
            "baseSeverity": "LOW",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L",
            "version": "3.1"
          },
          "products": [
            "SUSE Linux Enterprise Server LTSS Extended Security 12 SP5:xkbcomp-1.2.4-11.3.1.x86_64",
            "SUSE Linux Enterprise Server LTSS Extended Security 12 SP5:xkbcomp-devel-1.2.4-11.3.1.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2025-12-15T16:54:15Z",
          "details": "low"
        }
      ],
      "title": "CVE-2018-15863"
    }
  ]
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.


Detection rules are retrieved from Rulezet.


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.