Arbitrary Code Execution Affecting libexpat/libexpat package, versions [0,]


Severity

Recommended
0.0
medium
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

Exploit Maturity
Not Defined
EPSS
1.14% (85th percentile)

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  • Snyk IDSNYK-UNMANAGED-LIBEXPATLIBEXPAT-2403101
  • published18 Feb 2022
  • disclosed16 Feb 2022
  • creditIvan Fratric

Introduced: 16 Feb 2022

CVE-2022-25236  (opens in a new tab)
CWE-94  (opens in a new tab)

How to fix?

There is no fixed version for libexpat/libexpat.

Overview

Affected versions of this package are vulnerable to Arbitrary Code Execution as xmlparse.c allows attackers to insert namespace-separator characters into namespace URIs.

Passing (one or more) namespace separator characters in "xmlns[:prefix]" attribute values, made Expat send malformed tag names to the XML processor on top of Expat which can cause arbitrary damage depending on such un-expectable cases are handled inside the XML processor.

References

CVSS Scores

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