Integer Overflow or Wraparound Affecting libksba package, versions <0:1.3.5-8.el8_6


Severity

Recommended
high

Based on Oracle Linux security rating

    Threat Intelligence

    EPSS
    0.53% (78th percentile)

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  • Snyk ID SNYK-ORACLE8-LIBKSBA-3062863
  • published 25 Oct 2022
  • disclosed 12 Jan 2023

How to fix?

Upgrade Oracle:8 libksba to version 0:1.3.5-8.el8_6 or higher.
This issue was patched in ELSA-2022-7089.

NVD Description

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

A vulnerability was found in the Libksba library due to an integer overflow within the CRL parser. The vulnerability can be exploited remotely for code execution on the target system by passing specially crafted data to the application, for example, a malicious S/MIME attachment.

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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SUSE

9.8 critical
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Red Hat

8.6 high