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RHSA-2026:8534

Vulnerability from csaf_opensuse - Published: 2026-04-16 00:00 - Updated: 2026-09-16 18:53
Summary
security update for libarchive
Severity
Important
Notes
Title of the patch: security update for libarchive
Description of the patch: This security update provides a functional equivalent of RHSA-2026:8534. The original Red Hat(R) advisory is available from the Red Hat web site at https://access.redhat.com/errata/RHSA-2026:8534.
Patchnames: RHSA-2026:8534
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-2026-4424
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Affected products
Product Identifier Version Remediation
Unresolved product id: SUSE Liberty Linux 8:bsdtar-3.3.3-7.el8_10.x86_64 —
Vendor Fix
Unresolved product id: SUSE Liberty Linux 8:libarchive-3.3.3-7.el8_10.i686 —
Vendor Fix
Unresolved product id: SUSE Liberty Linux 8:libarchive-3.3.3-7.el8_10.x86_64 —
Vendor Fix
Unresolved product id: SUSE Liberty Linux 8:libarchive-devel-3.3.3-7.el8_10.i686 —
Vendor Fix
Unresolved product id: SUSE Liberty Linux 8:libarchive-devel-3.3.3-7.el8_10.x86_64 —
Vendor Fix
Threats
Impact important
CVE-2026-5121
7.1 (High)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H
Affected products
Recommended 5 products, the same list as for CVE-2026-4424
Threats
Impact important
References
To clipboard 

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          "text": "A flaw was found in libarchive. This heap out-of-bounds read vulnerability exists in the RAR archive processing logic due to improper validation of the LZSS sliding window size after transitions between compression methods. A remote attacker can exploit this by providing a specially crafted RAR archive, leading to the disclosure of sensitive heap memory information without requiring authentication or user interaction.",
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          "text": "A flaw was found in libarchive. On 32-bit systems, an integer overflow vulnerability exists in the zisofs block pointer allocation logic. A remote attacker can exploit this by providing a specially crafted ISO9660 image, which can lead to a heap buffer overflow. This could potentially allow for arbitrary code execution on the affected system.",
          "title": "CVE description"
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}



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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.