Vulnerability Details : CVE-2021-47353

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.
Published 2024-05-21 14:35:57
Updated 2024-12-24 16:12:00
Source Linux
View at NVD,   CVE.org
Vulnerability category: Memory Corruption

Products affected by CVE-2021-47353

Exploit prediction scoring system (EPSS) score for CVE-2021-47353

EPSS FAQ
0.01%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 1 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2021-47353

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
5.5
 MEDIUM CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
1.8
3.6
 NIST 2024-12-24

CWE ids for CVE-2021-47353

References for CVE-2021-47353

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