Vulnerability Details : CVE-2021-33480
An use-after-free vulnerability was discovered in gocr through 0.53-20200802 in context_correction() in pgm2asc.c.
Vulnerability category: Memory Corruption
Products affected by CVE-2021-33480
- Optical Character Recognition Project » Optical Character RecognitionVersions up to, including, (<=) 0.53-20200802cpe:2.3:a:optical_character_recognition_project:optical_character_recognition:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-33480
0.13%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 48 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-33480
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.3
|
MEDIUM | AV:N/AC:M/Au:N/C:N/I:N/A:P |
8.6
|
2.9
|
NIST | |
|
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 |
CWE ids for CVE-2021-33480
-
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.Assigned by:
- nvd@nist.gov (Primary)
- patrick@puiterwijk.org (Secondary)
References for CVE-2021-33480
-
https://security.gentoo.org/glsa/202401-28
GOCR: Multiple Vulnerabilities (GLSA 202401-28) — Gentoo security
-
https://bugzilla.redhat.com/show_bug.cgi?id=1962854
1962854 – (CVE-2021-33480) CVE-2021-33480 gocr: use-after-free in context_correction() in pgm2asc.cIssue Tracking;Third Party Advisory
-
https://sourceforge.net/p/jocr/bugs/41/
Optical Character Recognition (GOCR) / Bugs / #41 A use-after-free in pgm2asc.c:2817:39Exploit;Third Party Advisory
-
https://sourceforge.net/p/jocr/bugs/40/
Optical Character Recognition (GOCR) / Bugs / #40 A use-after-free in pgm2asc.c:2857:51Exploit;Third Party Advisory
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