Uninitialized Read Vulnerability in libxslt by GNOME
CVE-2019-13117

5.3MEDIUM

Key Information:

Vendor

Xmlsoft

Status
Libxslt
Vendor
CVE Published:
1 July 2019

What is CVE-2019-13117?

A vulnerability exists in libxslt version 1.1.33 which arises from improper handling of the xsl:number function when certain format strings are utilized. Specifically, this flaw can lead to an uninitialized read in the function xsltNumberFormatInsertNumbers. As a result, an attacker may exploit this vulnerability to determine if specific bytes on the stack contain particular characters, potentially exposing sensitive information. Users of affected versions should consider applying security updates and reviewing their systems for potential exploitation.

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References

https://gitlab.gnome.org/GNOME/libxslt/commit/c5eb6cf3aba...
x_refsource_MISC
https://oss-fuzz.com/testcase-detail/5631739747106816
x_refsource_MISC
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=14471
x_refsource_MISC

CVSS V3.1

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
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