CVE-2023-52502
MediumIn the Linux kernel, the following vulnerability has been resolved: net: nfc: fix races in nfc_llcp_sock_get() and nfc_llcp_sock_get_sn() Sili Luo reported a race in nfc_llcp_sock_get(), leading to UAF. Getting a reference on the socket found in a lookup while holding a lock should happen before releasing the lock. nfc_llcp_sock_get_sn() has a similar problem. Finally nfc_llcp_recv_snl() needs to make sure the socket found by nfc_llcp_sock_from_sn() does not disappear.
CVSS 3.1 score
6.3
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:H
Weakness type
CWE-362CVE-2023-52502 is a Race Condition vulnerability
What is Race Condition?
The product contains a code sequence that can run concurrently with other code, creating unexpected states. Learn more on MITRE CWE
Affected versions
Linux kernel versions
3.6
and later are affected. Fixed in
4.19.297,
5.4.259,
5.10.199,
5.15.136,
6.1.59,
6.5.8,
6.6
and their respective stable series.
References
7 total-
Patch
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Frequently asked questions
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What is CVE-2023-52502?
CVE-2023-52502 is a Medium severity Linux kernel vulnerability with a CVSS score of 6.3 out of 10 , classified as a Race Condition flaw (CWE-362) . It affects Linux kernel versions from 3.6 onward and has been patched in 4.19.297, 5.4.259, 5.10.199 and others. CVE-2023-52502 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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What is the CVSS score for CVE-2023-52502?
CVE-2023-52502 has a CVSS score of 6.3 out of 10, rated Medium severity (CVSS 3.1). The vector string is
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:H. -
Is there a patch available for CVE-2023-52502?
Yes. CVE-2023-52502 has been patched. Fixed versions include 4.19.297, 5.4.259, 5.10.199 and others. If you are running Linux kernel 3.6 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2023-52502 actively exploited?
No. CVE-2023-52502 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.