CVE-2022-33743

high

Description

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.

References

https://xenbits.xenproject.org/xsa/advisory-405.txt

http://xenbits.xen.org/xsa/advisory-405.html

http://www.openwall.com/lists/oss-security/2022/07/05/5

https://www.debian.org/security/2022/dsa-5191

Details

Source: MITRE

Published: 2022-07-05

Updated: 2022-11-05

Risk Information

CVSS v2

Base Score: 4.6

Vector: AV:L/AC:L/Au:N/C:P/I:P/A:P

Impact Score: 6.4

Exploitability Score: 3.9

Severity: MEDIUM

CVSS v3

Base Score: 7.8

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Impact Score: 5.9

Exploitability Score: 1.8

Severity: HIGH