Vulnerability Details : CVE-2020-21048
An issue in the dither.c component of libsixel prior to v1.8.4 allows attackers to cause a denial of service (DOS) via a crafted PNG file.
Vulnerability category: Denial of service
Products affected by CVE-2020-21048
- cpe:2.3:a:libsixel_project:libsixel:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-21048
0.24%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 63 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-21048
| 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 |
References for CVE-2020-21048
-
https://github.com/saitoha/libsixel/releases/tag/v1.8.4
Release v1.8.4 security update · saitoha/libsixel · GitHubRelease Notes;Third Party Advisory
-
https://github.com/saitoha/libsixel/blob/master/ChangeLog
libsixel/ChangeLog at master · saitoha/libsixel · GitHubRelease Notes;Third Party Advisory
-
https://github.com/saitoha/libsixel/commit/cb373ab6614c910407c5e5a93ab935144e62b037
Avoid illegal memory access problem with 1 color paletted png(#73), · saitoha/libsixel@cb373ab · GitHubPatch;Third Party Advisory
-
https://github.com/saitoha/libsixel/issues/73
Multiple crashes when converting png files · Issue #73 · saitoha/libsixel · GitHubExploit;Issue Tracking;Patch;Third Party Advisory
-
https://bitbucket.org/netbsd/pkgsrc/commits/6f0c011cbfccdffa635d04c84433b1a02687adad
404 — BitbucketBroken Link
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