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CVE-2020-23909

Publication date 18 July 2023

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

7.1 · High

Score breakdown

Heap-based buffer over-read in function png_convert_4 in file pngex.cc in AdvanceMAME through 2.1.

Read the notes from the security team

Status

Package Ubuntu Release Status
advancecomp 24.04 LTS noble
Vulnerable, fix deferred
23.10 mantic Ignored
23.04 lunar Ignored
22.10 kinetic Ignored
22.04 LTS jammy
Vulnerable, fix deferred
20.04 LTS focal
Vulnerable, fix deferred
18.04 LTS bionic
Vulnerable, fix deferred
16.04 LTS xenial
Vulnerable, fix deferred
14.04 LTS trusty Ignored
cloop 24.04 LTS noble
Vulnerable, fix deferred
23.10 mantic Ignored
23.04 lunar Ignored
22.10 kinetic Ignored
22.04 LTS jammy
Vulnerable, fix deferred
20.04 LTS focal
Vulnerable, fix deferred
18.04 LTS bionic
Vulnerable, fix deferred
16.04 LTS xenial
Vulnerable, fix deferred
14.04 LTS trusty Ignored

Notes

mdeslaur

While the CVE description mentions AdvanceMAME, advancecomp is the actual code and is provided by the AdvanceMAME project. Could not reproduce crash with focal, jammy, or lunar. Marking as deferred until a patch is available.

Severity score breakdown

Parameter Value
Base score 7.1 · High
Attack vector Local
Attack complexity Low
Privileges required None
User interaction Required
Scope Unchanged
Confidentiality High
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H