VulnerabilityModified
CVE-2020-36277
Leptonica before 1.80.0 allows a denial of service (application crash) via an incorrect left shift in pixConvert2To8 in pixconv.c.
HIGH 7.5EPSS 2.43%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.43%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Leptonica before 1.80.0 allows a denial of service (application crash) via an incorrect left shift in pixConvert2To8 in pixconv.c.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 2.43% probability · 84th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-670
- Affected
- leptonica/leptonica · fedoraproject/fedora · debian/debian linux
- Source
- cve@mitre.org
EPSS 2.4% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=21997Exploit, Issue Tracking, Third Party Advisory
- https://github.com/DanBloomberg/leptonica/compare/1.79.0...1.80.0Patch, Release Notes, Third Party Advisory
- https://github.com/DanBloomberg/leptonica/pull/499Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/03/msg00037.htmlMailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JQUEA2X6UTH4DMYCMZAWE2QQLN5YANUA/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RD5AIWHWE334HGYZJR2U3I3JYKSSO2LW/
- https://security.gentoo.org/glsa/202107-53Third Party Advisory
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=21997Exploit, Issue Tracking, Third Party Advisory
- https://github.com/DanBloomberg/leptonica/compare/1.79.0...1.80.0Patch, Release Notes, Third Party Advisory
- https://github.com/DanBloomberg/leptonica/pull/499Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/03/msg00037.htmlMailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JQUEA2X6UTH4DMYCMZAWE2QQLN5YANUA/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RD5AIWHWE334HGYZJR2U3I3JYKSSO2LW/
- https://security.gentoo.org/glsa/202107-53Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.