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CVE-2022-33743

Date: July 5, 2022

network backend may cause Linux netfront to use freed SKBs While adding logic to support XDP (eXpress Data Path), a code label was moved in a way allowing for SKBs having references (pointers) retained for further processing to nevertheless be freed.

Severity Score

Related Resources (9)

http://www.openwall.com/lists/oss-security/2022/07/05/5
https://xenbits.xenproject.org/xsa/advisory-405.txt
https://www.debian.org/security/2022/dsa-5191
https://access.redhat.com/security/cve/CVE-2022-33743
https://nvd.nist.gov/vuln/detail/CVE-2022-33743
https://people.canonical.com/~ubuntu-security/cve/CVE-2022-33743
https://security-tracker.debian.org/tracker/CVE-2022-33743
http://xenbits.xen.org/xsa/advisory-405.html
https://www.mend.io/vulnerability-database/CVE-2022-33743

Severity Score

Weakness Type (CWE)

Insufficient Information

NVD-CWE-noinfo

CVSS v3.1

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

CVSS v2

Base Score:
Access Vector (AV): LOCAL
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): PARTIAL
Integrity (I): PARTIAL
Availability (A): PARTIAL
Additional information:

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