CVE-2022-33743

HIGH7.8

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

Published Jul 5, 2022

Modified 1 years ago

Details

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

WEBhttp://www.openwall.com/lists/oss-security/2022/07/05/5 WEBhttp://xenbits.xen.org/xsa/advisory-405.html ADVISORYhttps://www.cve.org/CVERecord?id=CVE-2022-33743 ADVISORYhttps://www.debian.org/security/2022/dsa-5191 WEBhttps://xenbits.xenproject.org/xsa/advisory-405.txt

CVSS Analysis

CVSS v3.1

7.8

Exploitability

Attack Vector

LocalAV:L

Attack Complexity

LowAC:L

Privileges Required

LowPR:L

User Interaction

NoneUI:N

Scope

UnchangedS:U

Impact

Confidentiality

HighC:H

Integrity

HighI:H

Availability

HighA:H

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

Ecosystems

Timeline

PublishedJul 5, 2022

ModifiedAug 3, 2024