Use of Uninitialized Resource Affecting libxslt package, versions <1.1.34-r0


Severity

Recommended
0.0
medium
0
10

Snyk's Security Team recommends NVD's CVSS assessment

    Threat Intelligence

    EPSS
    0.8% (82nd percentile)

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  • Snyk ID SNYK-ALPINE314-LIBXSLT-1306981
  • published 1 Jul 2019
  • disclosed 1 Jul 2019

How to fix?

Upgrade Alpine:3.14 libxslt to version 1.1.34-r0 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 numbers.c in libxslt 1.1.33, an xsl:number with certain format strings could lead to a uninitialized read in xsltNumberFormatInsertNumbers. This could allow an attacker to discern whether a byte on the stack contains the characters A, a, I, i, or 0, or any other character.

References

CVSS Scores

version 3.1
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NVD

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

4.3 medium
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Red Hat

5.3 medium