Vulnerability Details : CVE-2021-23134
Use After Free vulnerability in nfc sockets in the Linux Kernel before 5.12.4 allows local attackers to elevate their privileges. In typical configurations, the issue can only be triggered by a privileged local user with the CAP_NET_RAW capability.
Vulnerability category: Memory Corruption
Products affected by CVE-2021-23134
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-23134
0.02%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 5 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-23134
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
4.6
|
MEDIUM | AV:L/AC:L/Au:N/C:P/I:P/A:P |
3.9
|
6.4
|
NIST | |
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
|
Palo Alto Networks, Inc. |
CWE ids for CVE-2021-23134
-
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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.Assigned by: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)
- psirt@paloaltonetworks.com (Secondary)
References for CVE-2021-23134
-
https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=c61760e6940d
kernel/git/netdev/net.git - Netdev Group's networking treeMailing List;Patch;Vendor Advisory
-
https://lists.debian.org/debian-lts-announce/2021/06/msg00019.html
[SECURITY] [DLA 2690-1] linux-4.19 security updateMailing List;Third Party Advisory
-
https://www.openwall.com/lists/oss-security/2021/05/11/4
oss-security - CVE-2021-23134: Linux kernel: UAF in nfc socketsMailing List;Patch;Third Party Advisory
-
https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html
[SECURITY] [DLA 2689-1] linux security updateMailing List;Third Party Advisory
-
https://security.netapp.com/advisory/ntap-20210625-0007/
CVE-2021-23134 Linux Kernel Vulnerability in NetApp Products | NetApp Product SecurityThird Party Advisory
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LZYORWNQIHNWRFYRDXBWYWBYM46PDZEN/
[SECURITY] Fedora 34 Update: kernel-tools-5.11.20-300.fc34 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QALNQT4LJFVSSA3MWCIECVY4AFPP4X77/
[SECURITY] Fedora 33 Update: kernel-5.11.20-200.fc33 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
Jump to