CVE-2023-52502

Advisory lineage Upstream: 0 Downstream: 98
Analyzed
Published: 02 Mar 2024, 21:52
Last modified:11 May 2026, 19:28

Vulnerability Summary

Overall Risk (default)
medium
25/100
CVSS Score
6.3 MEDIUM
v3.1 (cve.org)
EPSS Score
<0.01% LOW
0% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

02 Mar 2024, 21:52
Published
Vulnerability first disclosed
11 May 2026, 19:28
Last Modified
Vulnerability information updated

Description

In 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 Metrics

  • v3.1•MEDIUM•Score: 6.3CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:H

EPSS Trends

Current EPSS score: 0.01%• Percentile: 0%

Techniques & Countermeasures

  • CWE-362•Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

    The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.

  • CWE-416•Use After Free

    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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

Affected Systems

  • linux•linux

    ≥ 8f50020ed9b81ba909ce9573f9d05263cdebf502, < e863f5720a5680e50c4cecf12424d7cc31b3eb0a | ≥ 8f50020ed9b81ba909ce9573f9d05263cdebf502, < 7adcf014bda16cdbf804af5c164d94d5d025db2d | ≥ 8f50020ed9b81ba909ce9573f9d05263cdebf502, < 6ac22ecdaad2ecc662048f8c6b0ceb1ca0699ef9 | ≥ 8f50020ed9b81ba909ce9573f9d05263cdebf502, < d888d3f70b0de32b4f51534175f039ddab15eef8 | ≥ 8f50020ed9b81ba909ce9573f9d05263cdebf502, < e4f2611f07c87b3ddb57c4b9e8efcd1e330fc3dc | ≥ 8f50020ed9b81ba909ce9573f9d05263cdebf502, < d1af8a39cf839d93c8967fdd858f6bbdc3e4a15c | ≥ 8f50020ed9b81ba909ce9573f9d05263cdebf502, < 31c07dffafce914c1d1543c135382a11ff058d93 | 3.6

  • linux•linux_kernel

    ≥ 3.6, < 4.19.297 | ≥ 4.20, < 5.4.259 | ≥ 5.5, < 5.10.199 | ≥ 5.11, < 5.15.136 | ≥ 5.16, < 6.1.59 | ≥ 6.2, < 6.5.8 | 6.6:rc1 | 6.6:rc2 | 6.6:rc3 | 6.6:rc4 | 6.6:rc5

References (7)