Vulnerability Details : CVE-2021-36692
Potential exploit
libjxl v0.3.7 is affected by a Divide By Zero in issue in lib/extras/codec_apng.cc jxl::DecodeImageAPNG(). When encoding a malicous APNG file using cjxl, an attacker can trigger a denial of service.
Vulnerability category: Denial of service
Products affected by CVE-2021-36692
- cpe:2.3:a:libjxl_project:libjxl:0.3.7:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-36692
0.16%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 53 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-36692
| 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 | |
|
6.5
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |
2.8
|
3.6
|
NIST |
CWE ids for CVE-2021-36692
-
The product divides a value by zero.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-36692
-
https://github.com/libjxl/libjxl/issues/308
A Division-By-Zero error in lib/extras/codec_apng.cc jxl::DecodeImageAPNG() · Issue #308 · libjxl/libjxl · GitHubExploit;Issue Tracking;Third Party Advisory
-
https://github.com/libjxl/libjxl/pull/313
Fix handling of APNG with 0 delay_den by cagelight · Pull Request #313 · libjxl/libjxl · GitHubPatch;Third Party Advisory
-
https://github.com/libjxl/libjxl/commit/7dfa400ded53919d986c5d3d23446a09e0cf481b
Fix handling of APNG with 0 delay_den (#313) · libjxl/libjxl@7dfa400 · GitHubPatch;Third Party Advisory
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