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CVE-2022-31796

Date: May 29, 2022

libjpeg 1.63 has a heap-based buffer over-read in HierarchicalBitmapRequester::FetchRegion in hierarchicalbitmaprequester.cpp because the MCU size can be different between allocation and use.

Language: C++

Severity Score

Related Resources (6)

https://github.com/thorfdbg/libjpeg/commit/187035b9726710b4fe11d565c7808975c930895d
https://nvd.nist.gov/vuln/detail/CVE-2022-31796
https://people.canonical.com/~ubuntu-security/cve/CVE-2022-31796
https://github.com/thorfdbg/libjpeg/issues/71
https://security-tracker.debian.org/tracker/CVE-2022-31796
https://www.mend.io/vulnerability-database/CVE-2022-31796

Severity Score

Weakness Type (CWE)

Out-of-bounds Read

CWE-125

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): REQUIRED
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): MEDIUM
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): PARTIAL
Additional information:

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