Vulnerability Details : CVE-2021-3474
There's a flaw in OpenEXR in versions before 3.0.0-beta. A crafted input file that is processed by OpenEXR could cause a shift overflow in the FastHufDecoder, potentially leading to problems with application availability.
Vulnerability category: Overflow
Products affected by CVE-2021-3474
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
- cpe:2.3:a:openexr:openexr:*:*:*:*:*:*:*:*
- cpe:2.3:a:openexr:openexr:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-3474
0.16%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 52 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-3474
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:N/A:P |
10.0
|
2.9
|
NIST | |
|
5.3
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L |
3.9
|
1.4
|
NIST |
CWE ids for CVE-2021-3474
-
The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.Assigned by: secalert@redhat.com (Primary)
References for CVE-2021-3474
-
https://security.gentoo.org/glsa/202107-27
OpenEXR: Multiple vulnerabilities (GLSA 202107-27) — Gentoo securityThird Party Advisory
-
https://lists.debian.org/debian-lts-announce/2021/07/msg00001.html
[SECURITY] [DLA 2701-1] openexr security updateMailing List;Third Party Advisory
-
https://lists.debian.org/debian-lts-announce/2022/12/msg00022.html
[SECURITY] [DLA 3236-1] openexr security updateMailing List;Third Party Advisory
-
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=24831
24831 - openexr:openexr_exrenvmap_fuzzer: Undefined-shift in Imf_2_5::FastHufDecoder::FastHufDecoder - oss-fuzzIssue Tracking;Mailing List;Third Party Advisory
-
https://bugzilla.redhat.com/show_bug.cgi?id=1939142
1939142 – (CVE-2021-3474) CVE-2021-3474 OpenEXR: Undefined-shift in Imf_2_5::FastHufDecoder::FastHufDecoderIssue Tracking;Patch;Third Party Advisory
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