Vulnerability Details : CVE-2022-42720
Potential exploit
Various refcounting bugs in the multi-BSS handling in the mac80211 stack in the Linux kernel 5.1 through 5.19.x before 5.19.16 could be used by local attackers (able to inject WLAN frames) to trigger use-after-free conditions to potentially execute code.
Vulnerability category: Memory CorruptionExecute code
Products affected by CVE-2022-42720
- cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2022-42720
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-2022-42720
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
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 |
CWE ids for CVE-2022-42720
-
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2022-42720
-
http://www.openwall.com/lists/oss-security/2022/10/13/5
oss-security - Re: Various Linux Kernel WLAN security issues (RCE/DOS) foundExploit;Mailing List;Third Party Advisory
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https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VNN3VFQPECS6D4PS6ZWD7AFXTOSJDSSR/
[SECURITY] Fedora 35 Update: kernel-5.19.15-101.fc35 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
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https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/S2KTU5LFZNQS7YNGE56MT46VHMXL3DD2/
[SECURITY] Fedora 37 Update: kernel-5.19.15-301.fc37 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
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https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GGHENNMLCWIQV2LLA56BJNFIUZ7WB4IY/
[SECURITY] Fedora 36 Update: kernel-5.19.15-201.fc36 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
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http://packetstormsecurity.com/files/169951/Kernel-Live-Patch-Security-Notice-LSN-0090-1.html
Kernel Live Patch Security Notice LSN-0090-1 ≈ Packet StormThird Party Advisory;VDB Entry
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https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html
[SECURITY] [DLA 3173-1] linux-5.10 security updateMailing List;Third Party Advisory
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https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless.git/commit/?id=0b7808818cb9df6680f98996b8e9a439fa7bcc2f
kernel/git/wireless/wireless.git - kvalo's fork of linux.gitMailing List;Patch;Vendor Advisory
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https://bugzilla.suse.com/show_bug.cgi?id=1204059
Bug 1204059 – VUL-0: CVE-2022-42720: kernel: remote crash/code execution due to refcounting bugs in multi-BSS handlingIssue Tracking;Patch;Third Party Advisory
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https://www.debian.org/security/2022/dsa-5257
Debian -- Security Information -- DSA-5257-1 linuxThird Party Advisory
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https://security.netapp.com/advisory/ntap-20230203-0008/
October 2022 Linux Kernel 5.19.15 Vulnerabilities in NetApp Products | NetApp Product SecurityThird Party Advisory
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