Bug 2048916 (CVE-2021-45944)

Summary:	CVE-2021-45944 ghostscript: use-after-free in sampled_data_sample may lead to DoS
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-use-after-free flaw was found in Ghostscript’s GhostPDL in the sampled_data_sample 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-use-after-free issue, 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:	2049768, 2049769, 2049770
Bug Blocks:	2048917

Description Marian Rehak 2022-02-01 07:59:26 UTC

Ghostscript GhostPDL 9.50 through 9.53.3 has a use-after-free in sampled_data_sample (called from sampled_data_continue and interp).

Reference:

https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=29903

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

Comment 4 Marian Rehak 2022-02-03 18:26:28 UTC

Yes, and fedora is filed as notaffected + no trackers, what is your problem here?

Comment 5 Michael J Gruber 2022-02-03 19:30:10 UTC

(In reply to Marian Rehak from comment #4)
> Yes, and fedora is filed as notaffected + no trackers,

"Version unspecified" "OS Linux"

Where is Fedora filed as notaffected?

If it's not filed against Fedora, why am I on cc?


> what is your problem here?

I had a simple and fair question.

The "problem" is the tone of your response.