CVE-2018-19756 json
There is a heap-based buffer over-read at stb_image.h (function: stbi__tga_load) in libsixel 1.8.2 that will cause a denial of service.
published 7y ago modified 4mo ago also EUVD-2018-11440
- cvss
- 5.5
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.7%
- EPSS 0.7% chance of exploitation in 30 days, percentile 52%
- public exploits
- 0
- none known
Summary
There is a heap-based buffer over-read at stb_image.h (function: stbi__tga_load) in libsixel 1.8.2 that will cause a denial of service.
Patch / fix
- libsixel Debian 14, Debian 13, Debian 12 1.8.2-2
debian advisories DEBIAN-CVE-2018-19756
Is CVE-2018-19756 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerExploit prediction
0.68% chance of exploitation in the next 30 days, higher than 52% of all scored CVEs (FIRST EPSS, 2026-11-09).
Exploits and checks
- bugzilla.redhat.com https://bugzilla.redhat.com/show_bug.cgi?id=1649198 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 5.5 | CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |
| NVD | 2.0 | 4.3 | AV:N/AC:M/Au:N/C:N/I:N/A:P |
Classification
- Weakness
-
- CWE-125 Out-of-bounds Read
References
-
bugzilla.redhat.com
/show_bug.cgi?id=1649198
exploit, issue-tracking, third-party-advisory
Sources
- CVE List CVE-2018-19756
- NVD CVE-2018-19756
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.