CVE-2022-33743

Published: Jul 5, 2022Modified: Jun 17, 2026

7.8

Vector

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

Exploitability: 1.8 / Impact: 5.9

Source: NVD

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.

Affected (3)

Products: Linux: Linux Kernel · Xen: Xen · Debian: Debian Linux

1 product

1 product

1 product

Configuration A

2 vulnerable

Vulnerable Software	Affected Versions
Linux Linux Kernel	From 5.9 to 5.18
Xen Xen	All versions

Configuration B

1 vulnerable

Vulnerable Software	Affected Versions
Debian Debian Linux	Version 11.0

References (8)

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

Source: security@xen.org

Mailing ListPatchThird Party Advisory

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

Source: security@xen.org

PatchVendor Advisory

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

Source: security@xen.org

Third Party Advisory

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

Source: security@xen.org

Vendor Advisory

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

Source: af854a3a-2127-422b-91ae-364da2661108

Mailing ListPatchThird Party Advisory

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

Source: af854a3a-2127-422b-91ae-364da2661108

PatchVendor Advisory

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

Source: af854a3a-2127-422b-91ae-364da2661108

Third Party Advisory

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

Source: af854a3a-2127-422b-91ae-364da2661108

Vendor Advisory

Timeline

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