CVE-2021-23134
Linux Kernel NFC Sockets After Free Privilege Escalation vulnerability
Description
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.
INFO
Published Date :
May 12, 2021, 11:15 p.m.
Last Modified :
Nov. 7, 2023, 3:30 a.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
5.9
Exploitability Score :
1.8
Public PoC/Exploit Available at Github
CVE-2021-23134 has a 2 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
Affected Products
The following products are affected by CVE-2021-23134
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2021-23134.
| URL | Resource |
|---|---|
| https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=c61760e6940d | Mailing List Patch Vendor Advisory |
| https://lists.debian.org/debian-lts-announce/2021/06/msg00019.html | Mailing List Third Party Advisory |
| https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html | Mailing List Third Party Advisory |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LZYORWNQIHNWRFYRDXBWYWBYM46PDZEN/ | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QALNQT4LJFVSSA3MWCIECVY4AFPP4X77/ | |
| https://security.netapp.com/advisory/ntap-20210625-0007/ | Third Party Advisory |
| https://www.openwall.com/lists/oss-security/2021/05/11/4 | Mailing List Patch Third Party Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
None
A collection of links related to Linux kernel security and exploitation
linux-kernel kernel-exploitation exploit privilege-escalation security
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-23134 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-23134 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Nov. 07, 2023
Action Type Old Value New Value Added Reference Palo Alto Networks, Inc. https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LZYORWNQIHNWRFYRDXBWYWBYM46PDZEN/ [No types assigned] Added Reference Palo Alto Networks, Inc. https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QALNQT4LJFVSSA3MWCIECVY4AFPP4X77/ [No types assigned] Removed Reference Palo Alto Networks, Inc. https://lists.fedoraproject.org/archives/list/[email protected]/message/QALNQT4LJFVSSA3MWCIECVY4AFPP4X77/ Removed Reference Palo Alto Networks, Inc. https://lists.fedoraproject.org/archives/list/[email protected]/message/LZYORWNQIHNWRFYRDXBWYWBYM46PDZEN/ -
Modified Analysis by [email protected]
Sep. 07, 2021
Action Type Old Value New Value Changed Reference Type https://lists.debian.org/debian-lts-announce/2021/06/msg00019.html No Types Assigned https://lists.debian.org/debian-lts-announce/2021/06/msg00019.html Mailing List, Third Party Advisory Changed Reference Type https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html No Types Assigned https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html Mailing List, Third Party Advisory Changed Reference Type https://security.netapp.com/advisory/ntap-20210625-0007/ No Types Assigned https://security.netapp.com/advisory/ntap-20210625-0007/ Third Party Advisory Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Jun. 25, 2021
Action Type Old Value New Value Added Reference https://security.netapp.com/advisory/ntap-20210625-0007/ [No Types Assigned] -
CVE Modified by [email protected]
Jun. 23, 2021
Action Type Old Value New Value Added Reference https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html [No Types Assigned] Added Reference https://lists.debian.org/debian-lts-announce/2021/06/msg00019.html [No Types Assigned] -
Initial Analysis by [email protected]
May. 20, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:L/AC:L/Au:N/C:P/I:P/A:P) Changed Reference Type https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=c61760e6940d No Types Assigned https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=c61760e6940d Mailing List, Patch, Vendor Advisory Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/LZYORWNQIHNWRFYRDXBWYWBYM46PDZEN/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/LZYORWNQIHNWRFYRDXBWYWBYM46PDZEN/ Mailing List, Third Party Advisory Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/QALNQT4LJFVSSA3MWCIECVY4AFPP4X77/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/QALNQT4LJFVSSA3MWCIECVY4AFPP4X77/ Mailing List, Third Party Advisory Changed Reference Type https://www.openwall.com/lists/oss-security/2021/05/11/4 No Types Assigned https://www.openwall.com/lists/oss-security/2021/05/11/4 Mailing List, Patch, Third Party Advisory Added CWE NIST CWE-416 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (excluding) 5.12.4 Added CPE Configuration OR *cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* -
CVE Modified by [email protected]
May. 17, 2021
Action Type Old Value New Value Changed Description Use After Free vulnerability in nfc sockets in the Linux Kernel before 5.12.2 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. 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. -
CVE Modified by [email protected]
May. 16, 2021
Action Type Old Value New Value Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/QALNQT4LJFVSSA3MWCIECVY4AFPP4X77/ [No Types Assigned] Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/LZYORWNQIHNWRFYRDXBWYWBYM46PDZEN/ [No Types Assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-23134 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2021-23134
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.04 }} 0.00%
score
0.05635
percentile