Bug 2056031 (CVE-2022-23319)

Summary:	CVE-2022-23319 pcf2bdf: Segmentation fault during PCF file parsing
Product:	[Other] Security Response	Reporter:	Pedro Sampaio <psampaio>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	ajax, ofourdan, peter.hutterer
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
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Fixed In Version:		Doc Type:	If docs needed, set a value
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Last Closed:	2022-03-02 01:05:50 UTC	Type:	---
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Documentation:	---	CRM:
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	2056033
Bug Blocks:

Description Pedro Sampaio 2022-02-18 13:23:36 UTC

A segmentation fault during PCF file parsing in pcf2bdf versions >=1.05 allows an attacker to trigger a program crash via a specially crafted PCF font file. This crash affects the availability of the software and dependent downstream components.

https://github.com/ganaware/pcf2bdf

Comment 1 Pedro Sampaio 2022-02-18 13:24:02 UTC

Created bdftopcf tracking bugs for this issue:

Affects: fedora-all [bug 2056033]

Comment 2 Peter Hutterer 2022-02-21 03:01:11 UTC

Note that this CVE affects the program pcf2bdf (PCF -> BDF format, a font decompiler) which takes PCF as input. Fedora does not appear to package it. 

We do package bdftopcf (BDF -> PCF, a font compiler) which produces the PCF format as *output*. I wouldn't be surprised if bdftopcf has other issue but this CVE doesn't apply.

Comment 3 Peter Hutterer 2022-03-02 01:05:50 UTC

Closing as NOTABUG, we do not ship this component in Fedora