Bug 2048939 (CVE-2021-45949)

Summary:	CVE-2021-45949 ghostscript: heap-based buffer overflow in sampled_data_finish
Product:	[Other] Security Response	Reporter:	Marian Rehak <mrehak>
Component:	vulnerability	Assignee:	Nobody <nobody>
Status:	NEW ---	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	akhaitovich, mjg, mosvald, zdohnal
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:	A heap-based buffer overflow flaw was found in Ghostscript’s GhostPDL in the sampled_data_finish function (called from sampled_data_continue and interp). This flaw allows a local attacker to pass a specially crafted malicious file to Ghostscript that triggers a heap-based buffer overflow, potentially causing a crash that leads to a denial of service.	Story Points:	---
Clone Of:		Environment:
Last Closed:		Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	2049765, 2049766, 2049767
Bug Blocks:	2048917

Description Marian Rehak 2022-02-01 08:37:50 UTC

A heap-based buffer overflow in sampled_data_finish (called from sampled_data_continue and interp).

Reference:

https://github.com/google/oss-fuzz-vulns/blob/main/vulns/ghostscript/OSV-2021-803.yaml

Comment 1 Michael J Gruber 2022-02-01 14:25:12 UTC

Fedora versions all the way down to F33 are not affected - they carry  ghostscript-9.55.0.

So, which version are you reporting this against?