CVE-2020-21548 — Out-of-bounds Write in Project Libsixel

CWE-787 — Out-of-bounds Write5 documents5 sources
Severity
8.8HIGHNVD
EPSS
0.4%
top 40.46%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
1
Libsixel Project Libsixel
Timeline
PublishedSep 17
Latest updateMay 24

Description

Libsixel 1.8.3 contains a heap-based buffer overflow in the sixel_encode_highcolor function in tosixel.c.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HExploitability: 2.8 | Impact: 5.9

Affected Packages2 packages

▶Debianlibsixel_project/libsixel< 1.8.6-1+3

Patches

Patch: github.com ↗Patch: github.com ↗

🔴Vulnerability Details

3
GHSA
GHSA-rqxx-8p8c-6h26: Libsixel 1↗2022-05-24
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CVEList
CVE-2020-21548: Libsixel 1↗2021-09-17
▶
OSV
CVE-2020-21548: Libsixel 1↗2021-09-17
▶

📋Vendor Advisories

1
Debian
CVE-2020-21548: libsixel - Libsixel 1.8.3 contains a heap-based buffer overflow in the sixel_encode_highcol...↗2020
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CVE-2020-21548 — Out-of-bounds Write | cvebase