U.S. flag   An official website of the United States government
Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Https

Secure .gov websites use HTTPS
A lock (Dot gov) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2021-47353 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: udf: Fix NULL pointer dereference in udf_symlink function In function udf_symlink, epos.bh is assigned with the value returned by udf_tgetblk. The function udf_tgetblk is defined in udf/misc.c and returns the value of sb_getblk function that could be NULL. Then, epos.bh is used without any check, causing a possible NULL pointer dereference when sb_getblk fails. This fix adds a check to validate the value of epos.bh.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving NIST webspace. We have provided these links to other web sites because they may have information that would be of interest to you. No inferences should be drawn on account of other sites being referenced, or not, from this page. There may be other web sites that are more appropriate for your purpose. NIST does not necessarily endorse the views expressed, or concur with the facts presented on these sites. Further, NIST does not endorse any commercial products that may be mentioned on these sites. Please address comments about this page to [email protected].

URL Source(s) Tag(s)
https://git.kernel.org/stable/c/21bf1414580c36ffc8d8de043beb3508cf812238 CVE, kernel.org Patch 
https://git.kernel.org/stable/c/2f3d9ddd32a28803baa547e6274983b67d5e287c CVE, kernel.org Patch 
https://git.kernel.org/stable/c/3638705ecd5ad2785e996f820121c0ad15ce64b5 CVE, kernel.org Patch 
https://git.kernel.org/stable/c/371566f63cbd0bb6fbb25b8fe9d5798268d35af9 CVE, kernel.org Patch 
https://git.kernel.org/stable/c/5150877e4d99f85057a458daac7cd7c01005d5c6 CVE, kernel.org Patch 
https://git.kernel.org/stable/c/80d505aee6398cf8beb72475c7edcf1733c1c68b CVE, kernel.org Patch 
https://git.kernel.org/stable/c/aebed6b19e51a34003d998da5ebb1dfdd2cb1d02 CVE, kernel.org Patch 
https://git.kernel.org/stable/c/baea588a42d675e35daeaddd10fbc9700550bc4d CVE, kernel.org Patch 
https://git.kernel.org/stable/c/fa236c2b2d4436d9f19ee4e5d5924e90ffd7bb43 CVE, kernel.org Patch 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-476 NULL Pointer Dereference cwe source acceptance level NIST  

Known Affected Software Configurations Switch to CPE 2.2

CPEs loading, please wait.

Denotes Vulnerable Software
Are we missing a CPE here? Please let us know.

Change History

4 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2021-47353
NVD Published Date:
05/21/2024
NVD Last Modified:
12/24/2024
Source:
kernel.org