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CVE-2022-40304

Good to know:

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Date: November 22, 2022

An issue was discovered in libxml2 before 2.10.3. Certain invalid XML entity definitions can corrupt a hash table key, potentially leading to subsequent logic errors. In one case, a double-free can be provoked.

Language: C

Severity Score

Related Resources (19)

https://access.redhat.com/security/cve/CVE-2022-40304
https://support.apple.com/kb/HT213533
https://support.apple.com/kb/HT213534
https://nvd.nist.gov/vuln/detail/CVE-2022-40304
https://support.apple.com/kb/HT213535
https://gitlab.gnome.org/GNOME/libxml2/-/tags
https://security.netapp.com/advisory/ntap-20221209-0003/
http://seclists.org/fulldisclosure/2022/Dec/21
https://support.apple.com/kb/HT213531
https://gitlab.gnome.org/GNOME/libxml2/-/commit/1b41ec4e9433b05bb0376be4725804c54ef1d80b
https://security-tracker.debian.org/tracker/CVE-2022-40304
https://support.apple.com/kb/HT213536
https://gitlab.gnome.org/GNOME/libxml2/-/tags/v2.10.3
https://people.canonical.com/~ubuntu-security/cve/CVE-2022-40304
http://seclists.org/fulldisclosure/2022/Dec/27
http://seclists.org/fulldisclosure/2022/Dec/26
http://seclists.org/fulldisclosure/2022/Dec/25
http://seclists.org/fulldisclosure/2022/Dec/24
https://www.mend.io/vulnerability-database/CVE-2022-40304

Severity Score

Weakness Type (CWE)

Double Free

CWE-415

Improper Restriction of XML External Entity Reference ('XXE')

CWE-611

Top Fix

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Upgrade Version

Upgrade to version v2.10.3

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CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): REQUIRED
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

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