Vulnerability-Lookup

SUSE-SU-2026:20186-1

Vulnerability from csaf_suse - Published: 2026-01-28 15:47 - Updated: 2026-01-28 15:47

Summary

Security update for xkbcomp

Severity

Low

Notes

Title of the patch: Security update for xkbcomp

Description of the patch: This update for xkbcomp fixes the following issues: - CVE-2018-15863, CVE-2018-15861, CVE-2018-15859, CVE-2018-15853: Fixed multiple memory handling and correctness issues (bsc#1105832)

Patchnames: SUSE-SLES-16.0-208

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

Recommended 16 products

Product	Version	Remediation
Unresolved product id: SUSE Linux Enterprise Server 16.0:xkbcomp-1.4.7-160000.3.1.aarch64	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server 16.0:xkbcomp-1.4.7-160000.3.1.ppc64le	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server 16.0:xkbcomp-1.4.7-160000.3.1.s390x	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server 16.0:xkbcomp-1.4.7-160000.3.1.x86_64	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server 16.0:xkbcomp-devel-1.4.7-160000.3.1.aarch64	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server 16.0:xkbcomp-devel-1.4.7-160000.3.1.ppc64le	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server 16.0:xkbcomp-devel-1.4.7-160000.3.1.s390x	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server 16.0:xkbcomp-devel-1.4.7-160000.3.1.x86_64	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server for SAP applications 16.0:xkbcomp-1.4.7-160000.3.1.aarch64	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server for SAP applications 16.0:xkbcomp-1.4.7-160000.3.1.ppc64le	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server for SAP applications 16.0:xkbcomp-1.4.7-160000.3.1.s390x	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server for SAP applications 16.0:xkbcomp-1.4.7-160000.3.1.x86_64	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server for SAP applications 16.0:xkbcomp-devel-1.4.7-160000.3.1.aarch64	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server for SAP applications 16.0:xkbcomp-devel-1.4.7-160000.3.1.ppc64le	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server for SAP applications 16.0:xkbcomp-devel-1.4.7-160000.3.1.s390x	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server for SAP applications 16.0:xkbcomp-devel-1.4.7-160000.3.1.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 16 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 16 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 16 products, the same list as for CVE-2018-15853

Threats

Impact low

References

17 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/1105832	self
https://www.suse.com/security/cve/CVE-2018-15853/	self
https://www.suse.com/security/cve/CVE-2018-15859/	self
https://www.suse.com/security/cve/CVE-2018-15861/	self
https://www.suse.com/security/cve/CVE-2018-15863/	self
https://www.suse.com/security/cve/CVE-2018-15853	external
https://bugzilla.suse.com/1105832	external
https://www.suse.com/security/cve/CVE-2018-15859	external
https://bugzilla.suse.com/1105832	external
https://www.suse.com/security/cve/CVE-2018-15861	external
https://bugzilla.suse.com/1105832	external
https://www.suse.com/security/cve/CVE-2018-15863	external
https://bugzilla.suse.com/1105832	external

JSON

To clipboard

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  "vulnerabilities": [
    {
      "cve": "CVE-2018-15853",
      "ids": [
        {
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          "text": "https://www.suse.com/security/cve/CVE-2018-15853"
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        {
          "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"
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    },
    {
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      ],
      "threats": [
        {
          "category": "impact",
          "date": "2026-01-28T15:47:14Z",
          "details": "low"
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      ],
      "title": "CVE-2018-15863"
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  ]
}

CVE-2018-15853 (GCVE-0-2018-15853)

Vulnerability from cvelistv5 – Published: 2018-08-25 21:00 – Updated: 2024-08-05 10:10

Summary

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.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

6 references

URL	Tags
https://security.gentoo.org/glsa/201810-05	vendor-advisoryx_refsource_GENTOO
https://usn.ubuntu.com/3786-1/	vendor-advisoryx_refsource_UBUNTU
https://usn.ubuntu.com/3786-2/	vendor-advisoryx_refsource_UBUNTU
https://lists.freedesktop.org/archives/wayland-de…	x_refsource_MISC
https://github.com/xkbcommon/libxkbcommon/commit/…	x_refsource_MISC
https://access.redhat.com/errata/RHSA-2019:2079	vendor-advisoryx_refsource_REDHAT

Date Public

2018-08-25 00:00

Show details on NVD website

JSON

To clipboard

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CVE-2018-15859 (GCVE-0-2018-15859)

Vulnerability from cvelistv5 – Published: 2018-08-25 21:00 – Updated: 2024-08-05 10:10

Summary

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.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

6 references

URL	Tags
https://security.gentoo.org/glsa/201810-05	vendor-advisoryx_refsource_GENTOO
https://lists.freedesktop.org/archives/wayland-de…	x_refsource_MISC
https://usn.ubuntu.com/3786-1/	vendor-advisoryx_refsource_UBUNTU
https://github.com/xkbcommon/libxkbcommon/commit/…	x_refsource_MISC
https://usn.ubuntu.com/3786-2/	vendor-advisoryx_refsource_UBUNTU
https://access.redhat.com/errata/RHSA-2019:2079	vendor-advisoryx_refsource_REDHAT

Date Public

2018-08-25 00:00

Show details on NVD website

JSON

To clipboard

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CVE-2018-15861 (GCVE-0-2018-15861)

Vulnerability from cvelistv5 – Published: 2018-08-25 21:00 – Updated: 2024-08-05 10:10

Summary

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.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

6 references

URL	Tags
https://security.gentoo.org/glsa/201810-05	vendor-advisoryx_refsource_GENTOO
https://lists.freedesktop.org/archives/wayland-de…	x_refsource_MISC
https://usn.ubuntu.com/3786-1/	vendor-advisoryx_refsource_UBUNTU
https://github.com/xkbcommon/libxkbcommon/commit/…	x_refsource_MISC
https://usn.ubuntu.com/3786-2/	vendor-advisoryx_refsource_UBUNTU
https://access.redhat.com/errata/RHSA-2019:2079	vendor-advisoryx_refsource_REDHAT

Date Public

2018-08-25 00:00

Show details on NVD website

JSON

To clipboard

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CVE-2018-15863 (GCVE-0-2018-15863)

Vulnerability from cvelistv5 – Published: 2018-08-25 21:00 – Updated: 2024-08-05 10:10

Summary

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.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

6 references

URL	Tags
https://security.gentoo.org/glsa/201810-05	vendor-advisoryx_refsource_GENTOO
https://lists.freedesktop.org/archives/wayland-de…	x_refsource_MISC
https://github.com/xkbcommon/libxkbcommon/commit/…	x_refsource_MISC
https://usn.ubuntu.com/3786-1/	vendor-advisoryx_refsource_UBUNTU
https://usn.ubuntu.com/3786-2/	vendor-advisoryx_refsource_UBUNTU
https://access.redhat.com/errata/RHSA-2019:2079	vendor-advisoryx_refsource_REDHAT

Date Public

2018-08-25 00:00

Show details on NVD website

JSON

To clipboard

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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.

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

SUSE-SU-2026:20186-1

CVE-2018-15853 (GCVE-0-2018-15853)

CVE-2018-15859 (GCVE-0-2018-15859)

CVE-2018-15861 (GCVE-0-2018-15861)

CVE-2018-15863 (GCVE-0-2018-15863)

Tags

Sightings

Nomenclature

Related by attack behaviour