Out-of-bounds read in Leptonica - CVE-2020-36281
Published: July 26, 2021
Vulnerability identifier: #VU55310
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2020-36281
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: DanBloomberg
Affected software:
Leptonica
Leptonica
Detailed vulnerability description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary condition in pixFewColorsOctcubeQuantMixed in colorquant1.c. A remote attacker can trigger out-of-bounds read error and cause a denial of service condition on the system.
How to mitigate CVE-2020-36281
Install updates from vendor's website.
Sources
- https://github.com/DanBloomberg/leptonica/compare/1.79.0...1.80.0
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=22140
- https://github.com/DanBloomberg/leptonica/commit/5ee24b398bb67666f6d173763eaaedd9c36fb1e5
- https://lists.debian.org/debian-lts-announce/2021/03/msg00037.html
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JQUEA2X6UTH4DMYCMZAWE2QQLN5YANUA/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RD5AIWHWE334HGYZJR2U3I3JYKSSO2LW/