Use After Free in Linux Kernel
CVE-2022-42719
A use-after-free in the mac80211 stack when parsing a multi-BSSID element in the Linux kernel 5.2 through 5.19.x before 5.19.16 could be used by attackers (able to inject WLAN frames) to crash the kernel and potentially execute code.
Vulnerability class: Use-After-Free
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.013 (68.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 69th percentile — 68.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · change: -0.000
Affected products
- Linux Kernel
- Debian Linux — versions 10.0, 11.0
- Fedoraproject Fedora — versions 35, 36, 37
Weakness classification (CWE)
Public proof-of-concept exploits
References
- bugzilla.suse.com/show_bug.cgi (Patch, Third Party Advisory, Issue Tracking)
- www.openwall.com/lists/oss-security/2022/10/13/2 (Patch, Mailing List, Third Party Advisory)
- www.openwall.com/lists/oss-security/2022/10/13/5 (Exploit, Mailing List, Third Party Advisory)
- git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless.git/commit/ (Patch, Mailing List, Vendor Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- www.debian.org/security/2022/dsa-5257 (vendor-advisory, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2022/11/msg00001.html (mailing-list, Mailing List, Third Party Advisory)
- security.netapp.com/advisory/ntap-20230203-0008/
Frequently asked questions
- What is CVE-2022-42719?
- CVE-2022-42719 is a high-severity vulnerability in Linux Kernel, classified under Use After Free. CVSS score: 8.8/10. Published 2022-10-13.
- How severe is CVE-2022-42719?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2022-42719 known to be exploited?
- 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.