CVE-2022-31796 — MEDIUM (6.5)

Vulnerability Description

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.

CVSS Score

6.5

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Jpeg	Libjpeg	1.63

Related Weaknesses (CWE)

CWE-125

References

https://github.com/thorfdbg/libjpeg/commit/187035b9726710b4fe11d565c7808975c9308PatchThird Party Advisory
https://github.com/thorfdbg/libjpeg/issues/71Third Party Advisory
https://github.com/thorfdbg/libjpeg/commit/187035b9726710b4fe11d565c7808975c9308PatchThird Party Advisory
https://github.com/thorfdbg/libjpeg/issues/71Third Party Advisory

FAQ

What is CVE-2022-31796?

CVE-2022-31796 is a vulnerability with a CVSS score of 6.5 (MEDIUM). 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.

How severe is CVE-2022-31796?

CVE-2022-31796 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2022-31796?

Check the references section above for vendor advisories and patch information. Affected products include: Jpeg Libjpeg.