Bug 2234595 (CVE-2023-30079)

Summary:	CVE-2023-30079 libeconf: Stack overflow in function read_file at libeconf/lib/getfilecontents.c
Product:	[Other] Security Response	Reporter:	Pedro Sampaio <psampaio>
Component:	vulnerability	Assignee:	Product Security <prodsec-ir-bot>
Status:	NEW ---	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	CC:	ipedrosa
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	libeconf 0.5.2	Doc Type:	If docs needed, set a value
Doc Text:	A flaw was found in the libeconf library. This issue occurs when parsing a specially crafted configuration file, causing a stack-based buffer overflow that results in 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:	2212467, 2212468, 2234596, 2235236, 2235239, 2235240
Bug Blocks:	2234597

Description Pedro Sampaio 2023-08-24 19:55:08 UTC

A stack overflow vulnerability exists in function read_file in atlibeconf/lib/getfilecontents.c in libeconf 0.5.1 allows attackers to cause a Denial of service or execute arbitrary code.

References:

https://raw.githubusercontent.com/yangjiageng/PoC/master/libeconf-PoC/tst-logindefs1.c
https://github.com/openSUSE/libeconf/issues/177
https://github.com/yangjiageng/PoC/blob/master/libeconf-PoC/read_file_503

Comment 2 Sandipan Roy 2023-08-28 05:39:00 UTC

Created libeconf tracking bugs for this issue:

Affects: fedora-all [bug 2235236]

Comment 4 errata-xmlrpc 2023-10-05 13:05:37 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.0 Extended Update Support

Via RHSA-2023:5458 https://access.redhat.com/errata/RHSA-2023:5458