CVE-2021-34122 : The function bitstr_tell at bitstr.c in ffjpeg commit 4ab404e has a NULL pointer

The function bitstr_tell at bitstr.c in ffjpeg commit 4ab404e has a NULL pointer dereference.

Published 2022-03-10 17:42:37

Updated 2023-08-17 14:09:52

Source MITRE

View at NVD, CVE.org

Vulnerability category: Memory Corruption

Products affected by CVE-2021-34122

Rockcarry » Ffjpeg
Versions before (<) 2021-03-16
cpe:2.3:a:rockcarry:ffjpeg:*:*:*:*:*:*:*:*
Matching versions

EPSS FAQ

0.06%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 22 %

Percentile, the proportion of vulnerabilities that are scored at or less

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
4.3	MEDIUM	AV:N/AC:M/Au:N/C:N/I:N/A:P	8.6	2.9	NIST
Access Vector: Network Access Complexity: Medium Authentication: None Confidentiality Impact: None Integrity Impact: None Availability Impact: Partial
5.5	MEDIUM	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H	1.8	3.6	NIST
Attack Vector: Local Attack Complexity: Low Privileges Required: None User Interaction: Required Scope: Unchanged Confidentiality: None Integrity: None Availability: High

CWE-476 NULL Pointer Dereference

The product dereferences a pointer that it expects to be valid but is NULL.

Assigned by: nvd@nist.gov (Primary)

https://github.com/rockcarry/ffjpeg/pull/37

try fix null pointer deference for issue #36 by chibataiki · Pull Request #37 · rockcarry/ffjpeg · GitHub
Patch;Third Party Advisory
https://github.com/rockcarry/ffjpeg/issues/36

null pointer dereference in function bitstr_tell() in bitstr.c · Issue #36 · rockcarry/ffjpeg · GitHub
Exploit;Patch;Third Party Advisory

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