Vulnerability in Linux
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.
EPSS: 0.003 (27.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Linux — versions consult Xen advisory XSA-405
- Linux Linux_kernel
- Xen
- Debian Debian_linux — versions 11.0
References
- security@xen.org (x_refsource_MISC, Vendor Advisory)
- security@xen.org (x_refsource_CONFIRM, Patch, Vendor Advisory)
- security@xen.org (mailing-list, x_refsource_MLIST, Patch, Mailing List, Third Party Advisory)
- security@xen.org (vendor-advisory, Third Party Advisory, x_refsource_DEBIAN)
Frequently asked questions
- What is CVE-2022-33743?
- CVE-2022-33743 is a high-severity vulnerability in Linux. CVSS score: 7.8/10. Published 2022-07-05.
- How severe is CVE-2022-33743?
- High severity. CVSS v3 base score is 7.8 out of 10.