Use After Free Affecting libxslt package, versions <1.1.33-r3


Severity

Recommended
0.0
high
0
10

Snyk's Security Team recommends NVD's CVSS assessment

    Threat Intelligence

    EPSS
    0.79% (82nd percentile)

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  • Snyk ID SNYK-ALPINE314-LIBXSLT-1306979
  • published 19 Oct 2019
  • disclosed 18 Oct 2019

How to fix?

Upgrade Alpine:3.14 libxslt to version 1.1.33-r3 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libxslt package and not the libxslt package as distributed by Alpine. See How to fix? for Alpine:3.14 relevant fixed versions and status.

In xsltCopyText in transform.c in libxslt 1.1.33, a pointer variable isn't reset under certain circumstances. If the relevant memory area happened to be freed and reused in a certain way, a bounds check could fail and memory outside a buffer could be written to, or uninitialized data could be disclosed.

CVSS Scores

version 3.1
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NVD

7.5 high
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    High
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    Required
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    High
  • Integrity (I)
    High
  • Availability (A)
    High
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SUSE

7.5 high
Expand this section

Red Hat

7.5 high