Alpaquita Linux
Security Advisory

CVE-2023-29469

Published: August 31, 2023Last modified: August 31, 2023

Description

An issue was discovered in libxml2 before 2.10.4. When hashing empty dict strings in a crafted XML document, xmlDictComputeFastKey in dict.c can produce non-deterministic values, leading to various logic and memory errors, such as a double free. This behavior occurs because there is an attempt to use the first byte of an empty string, and any value is possible (not solely the '\0' value).

Severity score breakdown

ParameterValue
Base score6.5
Attack VectorNETWORK
Attack complexityLOW
Privileges requiredNONE
User interactionREQUIRED
ScopeUNCHANGED
ConfidentialityNONE
Integrity impactNONE
Availability impactHIGH
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Status

ProductReleasePackageStatus
Alpaquita Linux23 LTSlibxml2Not affected (2.10.4-r0)
Streamlibxml2Not affected (2.11.5-r0)

References

ON THIS PAGE