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NULL Pointer Dereference Affecting libarchive package, versions <0:3.3.3-5.el8

Severity

 Recommended
low

Based on Oracle Linux security rating

    Threat Intelligence

    EPSS
    0.74% (82nd percentile)

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  • Snyk ID SNYK-ORACLE8-LIBARCHIVE-5600193
  • published 16 May 2023
  • disclosed 22 Nov 2022
Report a new vulnerability Found a mistake?

Introduced: 22 Nov 2022

CVE-2022-36227 Open this link in a new tab
CWE-476 Open this link in a new tab

How to fix?

Upgrade Oracle:8 libarchive to version 0:3.3.3-5.el8 or higher.
This issue was patched in ELSA-2023-3018.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libarchive package and not the libarchive package as distributed by Oracle. See How to fix? for Oracle:8 relevant fixed versions and status.

In libarchive before 3.6.2, the software does not check for an error after calling calloc function that can return with a NULL pointer if the function fails, which leads to a resultant NULL pointer dereference. NOTE: the discoverer cites this CWE-476 remark but third parties dispute the code-execution impact: "In rare circumstances, when NULL is equivalent to the 0x0 memory address and privileged code can access it, then writing or reading memory is possible, which may lead to code execution."

CVSS Scores

version 3.1
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NVD

9.8 critical
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    High
  • Integrity (I)
    High
  • Availability (A)
    High
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Red Hat

5.9 medium
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SUSE

3.3 low