CVE-2020-36277

Severity Score

7.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Leptonica before 1.80.0 allows a denial of service (application crash) via an incorrect left shift in pixConvert2To8 in pixconv.c.

Leptonica versiones anteriores a 1.80.0, permite una denegación de servicio (bloqueo de la aplicación) por medio de un desplazamiento incorrecto a la izquierda en la función pixConvert2To8 en el archivo pixconv.c

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-03-11 CVE Reserved
2021-03-11 CVE Published
2024-01-18 EPSS Updated
2024-08-04 CVE Updated
2024-08-04 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-670: Always-Incorrect Control Flow Implementation

CAPEC

References (7)

URL	Tag	Source
https://lists.debian.org/debian-lts-announce/2021/03/msg00037.html	Mailing List

URL	Date	SRC
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=21997	2024-08-04

URL	Date	SRC
https://github.com/DanBloomberg/leptonica/compare/1.79.0...1.80.0	2023-11-07
https://github.com/DanBloomberg/leptonica/pull/499	2023-11-07

URL	Date	SRC
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JQUEA2X6UTH4DMYCMZAWE2QQLN5YANUA	2023-11-07
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RD5AIWHWE334HGYZJR2U3I3JYKSSO2LW	2023-11-07
https://security.gentoo.org/glsa/202107-53	2023-11-07

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Leptonica Search vendor "Leptonica"	Leptonica Search vendor "Leptonica" for product "Leptonica"	< 1.80.0 Search vendor "Leptonica" for product "Leptonica" and version " < 1.80.0"	-	Affected	in	Linux Search vendor "Linux"	Linux Kernel Search vendor "Linux" for product "Linux Kernel"	-	-	Safe
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				32 Search vendor "Fedoraproject" for product "Fedora" and version "32"		-		Affected
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				33 Search vendor "Fedoraproject" for product "Fedora" and version "33"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				9.0 Search vendor "Debian" for product "Debian Linux" and version "9.0"		-		Affected