Bug 2238520

Summary:	CVE-2023-39130 gdb: heap-buffer-overflow in pe_as16(void*) [fedora-all]
Product:	[Fedora] Fedora	Reporter:	Dhananjay Arunesh <darunesh>
Component:	gdb	Assignee:	Kevin Buettner <kevinb>
Status:	CLOSED NOTABUG	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	38	CC:	ahajkova, fweimer, guinevere, jan, keiths, kevinb, mcermak, mkolar
Target Milestone:	---	Keywords:	Security, SecurityTracking
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	No Doc Update
Doc Text:		Story Points:	---
Clone Of:
Clones:	2238641 (view as bug list)		Environment:
Last Closed:	2023-09-12 23:27:30 UTC	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:
Bug Blocks:	2226595

Description Dhananjay Arunesh 2023-09-12 10:30:05 UTC

More information about this security flaw is available in the following bug:

http://bugzilla.redhat.com/show_bug.cgi?id=2226595

Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

Comment 1 Dhananjay Arunesh 2023-09-12 10:30:09 UTC

Use the following template to for the 'fedpkg update' request to submit an
update for this issue as it contains the top-level parent bug(s) as well as
this tracking bug.  This will ensure that all associated bugs get updated
when new packages are pushed to stable.

=====

# bugfix, security, enhancement, newpackage (required)
type=security

# low, medium, high, urgent (required)
severity=medium

# testing, stable
request=testing

# Bug numbers: 1234,9876
bugs=2226595,2238520

# Description of your update
notes=Security fix for [PUT CVEs HERE]

# Enable request automation based on the stable/unstable karma thresholds
autokarma=True
stable_karma=3
unstable_karma=-3

# Automatically close bugs when this marked as stable
close_bugs=True

# Suggest that users restart after update
suggest_reboot=False

======

Additionally, you may opt to use the bodhi web interface to submit updates:

https://bodhi.fedoraproject.org/updates/new

Comment 2 Kevin Buettner 2023-09-12 23:27:30 UTC

I'm closing this bug due to it not being exploitable on Fedora or RHEL.

The bug in question is in code which reads COFF files. COFF is an object/executable format that is NOT used by Linux. Support for outputting this format was removed in GCC 8, which was last used in Fedora 29. A Fedora GDB user could attempt to load symbols from a COFF file brought in from some other OS, but, at worst, GDB would simply crash. While this is certainly a bug, it is definitely not a security concern.

That said, since it is still a bug, albeit not a very important one, I have made a clone of this bug.  See Bug 2238641.