Vulnerability Details : CVE-2023-3863
A use-after-free flaw was found in nfc_llcp_find_local in net/nfc/llcp_core.c in NFC in the Linux kernel. This flaw allows a local user with special privileges to impact a kernel information leak issue.
Vulnerability category: Memory Corruption
Products affected by CVE-2023-3863
- cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:12.0:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2023-3863
0.01%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2023-3863
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.1
|
MEDIUM | CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N |
0.5
|
3.6
|
NIST | |
|
6.4
|
MEDIUM | CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H |
0.5
|
5.9
|
Red Hat, Inc. |
CWE ids for CVE-2023-3863
-
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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.Assigned by: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)
- secalert@redhat.com (Secondary)
References for CVE-2023-3863
-
https://github.com/torvalds/linux/commit/6709d4b7bc2e079241fdef15d1160581c5261c10
net: nfc: Fix use-after-free caused by nfc_llcp_find_local · torvalds/linux@6709d4b · GitHubPatch
-
https://security.netapp.com/advisory/ntap-20240202-0002/
CVE-2023-3863 Linux Kernel Vulnerability in NetApp Products | NetApp Product Security
-
https://www.debian.org/security/2023/dsa-5480
Debian -- Security Information -- DSA-5480-1 linuxThird Party Advisory
-
https://bugzilla.redhat.com/show_bug.cgi?id=2225126
2225126 – (CVE-2023-3863) CVE-2023-3863 kernel: use-after-free in nfc_llcp_find_loca in net/nfc/llcp_core.cIssue Tracking;Patch;Third Party Advisory
-
https://www.debian.org/security/2023/dsa-5492
Debian -- Security Information -- DSA-5492-1 linuxThird Party Advisory
-
https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html
[SECURITY] [DLA 3623-1] linux-5.10 security updateMailing List;Third Party Advisory
-
https://access.redhat.com/security/cve/CVE-2023-3863
CVE-2023-3863- Red Hat Customer PortalThird Party Advisory
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