Buffer Overflow Affecting libexpat/libexpat package, versions [,2.4.5)


Severity

Recommended
0.0
high
0
10

CVSS assessment made by Snyk's Security Team

    Threat Intelligence

    Exploit Maturity
    Proof of concept
    EPSS
    2.47% (91st percentile)

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  • Snyk ID SNYK-UNMANAGED-LIBEXPATLIBEXPAT-2404807
  • published 18 Feb 2022
  • disclosed 18 Feb 2022
  • credit Unknown

How to fix?

Upgrade libexpat/libexpat to version 2.4.5 or higher.

Overview

Affected versions of this package are vulnerable to Buffer Overflow by abusing the m_buffer expansion logic which causes integer overflow in storeRawNames.

CVSS Scores

version 3.1
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Snyk

Recommended
7.3 high
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    Low
  • Integrity (I)
    Low
  • Availability (A)
    Low
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NVD

9.8 critical
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SUSE

8.8 high
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Red Hat

9.8 critical