CVE-2022-40303
moderate-risk
Published 2022-11-23
An issue was discovered in libxml2 before 2.10.3. When parsing a multi-gigabyte XML document with the XML_PARSE_HUGE parser option enabled, several integer counters can overflow. This results in an attempt to access an array at a negative 2GB offset, typically leading to a segmentation fault.
Do I need to act?
-
0.18% chance of exploitation
EPSS score — low exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
7
CVSS 7.5/10
High
NETWORK
/ LOW complexity
Affected Products (17)
References (26)
Mailing List
http://seclists.org/fulldisclosure/2022/Dec/21
Mailing List
http://seclists.org/fulldisclosure/2022/Dec/24
Mailing List
http://seclists.org/fulldisclosure/2022/Dec/25
Mailing List
http://seclists.org/fulldisclosure/2022/Dec/26
Release Notes
https://gitlab.gnome.org/GNOME/libxml2/-/tags/v2.10.3
Third Party Advisory
https://security.netapp.com/advisory/ntap-20221209-0003/
Third Party Advisory
https://support.apple.com/kb/HT213531
Third Party Advisory
https://support.apple.com/kb/HT213533
Third Party Advisory
https://support.apple.com/kb/HT213534
Third Party Advisory
https://support.apple.com/kb/HT213535
Third Party Advisory
https://support.apple.com/kb/HT213536
Mailing List
http://seclists.org/fulldisclosure/2022/Dec/21
Mailing List
http://seclists.org/fulldisclosure/2022/Dec/24
Mailing List
http://seclists.org/fulldisclosure/2022/Dec/25
Mailing List
http://seclists.org/fulldisclosure/2022/Dec/26
Release Notes
https://gitlab.gnome.org/GNOME/libxml2/-/tags/v2.10.3
and 6 more references
46
/ 100
moderate-risk
Severity
26/34 · High
Exploitability
1/34 · Minimal
Exposure
19/34 · Moderate