Vulnerability Details : CVE-2022-33743
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.
Products affected by CVE-2022-33743
- cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:-:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2022-33743
0.04%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 6 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2022-33743
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.6
|
MEDIUM | AV:L/AC:L/Au:N/C:P/I:P/A:P |
3.9
|
6.4
|
NIST | |
|
7.8
|
HIGH | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
1.8
|
5.9
|
NIST |
References for CVE-2022-33743
-
http://www.openwall.com/lists/oss-security/2022/07/05/5
oss-security - Xen Security Advisory 405 v3 (CVE-2022-33743) - network backend may cause Linux netfront to use freed SKBsMailing List;Patch;Third Party Advisory
-
https://www.debian.org/security/2022/dsa-5191
Debian -- Security Information -- DSA-5191-1 linuxThird Party Advisory
-
http://xenbits.xen.org/xsa/advisory-405.html
XSA-405 - Xen Security AdvisoriesPatch;Vendor Advisory
-
https://xenbits.xenproject.org/xsa/advisory-405.txt
Vendor Advisory
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