CVE-2021-3348
Linux kernel nbd add socket use after free Local Privilege Escalation vulnerability
Description
nbd_add_socket in drivers/block/nbd.c in the Linux kernel through 5.10.12 has an ndb_queue_rq use-after-free that could be triggered by local attackers (with access to the nbd device) via an I/O request at a certain point during device setup, aka CID-b98e762e3d71.
INFO
Published Date :
Feb. 1, 2021, 4:15 a.m.
Last Modified :
April 26, 2022, 4:17 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
5.9
Exploitability Score :
1.0
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-2021-3348.
| URL | Resource |
|---|---|
| http://www.openwall.com/lists/oss-security/2021/02/01/1 | Mailing List Patch Third Party Advisory |
| https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b98e762e3d71e893b221f871825dc64694cfb258 | Mailing List Patch Vendor Advisory |
| https://lists.debian.org/debian-lts-announce/2021/03/msg00035.html | Third Party Advisory |
| https://www.openwall.com/lists/oss-security/2021/01/28/3 | 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).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-3348 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-3348 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 -
Modified Analysis by [email protected]
Apr. 26, 2022
Action Type Old Value New Value Changed Reference Type https://lists.debian.org/debian-lts-announce/2021/03/msg00035.html No Types Assigned https://lists.debian.org/debian-lts-announce/2021/03/msg00035.html Third Party Advisory Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Mar. 31, 2021
Action Type Old Value New Value Added Reference https://lists.debian.org/debian-lts-announce/2021/03/msg00035.html [No Types Assigned] -
Reanalysis by [email protected]
Feb. 16, 2021
Action Type Old Value New Value Removed CVSS V2 NIST (AV:L/AC:L/Au:N/C:P/I:N/A:N) Added CVSS V2 NIST (AV:L/AC:M/Au:N/C:P/I:P/A:P) Removed CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N Added CVSS V3.1 NIST AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H Added CWE NIST CWE-362 -
Initial Analysis by [email protected]
Feb. 05, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:L/AC:L/Au:N/C:P/I:N/A:N) Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N Changed Reference Type http://www.openwall.com/lists/oss-security/2021/02/01/1 No Types Assigned http://www.openwall.com/lists/oss-security/2021/02/01/1 Mailing List, Patch, Third Party Advisory Changed Reference Type https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b98e762e3d71e893b221f871825dc64694cfb258 No Types Assigned https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b98e762e3d71e893b221f871825dc64694cfb258 Mailing List, Patch, Vendor Advisory Changed Reference Type https://www.openwall.com/lists/oss-security/2021/01/28/3 No Types Assigned https://www.openwall.com/lists/oss-security/2021/01/28/3 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 (including) 5.10.12 -
CVE Modified by [email protected]
Feb. 01, 2021
Action Type Old Value New Value Added Reference http://www.openwall.com/lists/oss-security/2021/02/01/1 [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-2021-3348 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-2021-3348
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