Bug 2234472 (CVE-2023-30078)

Summary:	CVE-2023-30078 libeconf: Stack overflow in function econf_writeFile at libeconf/lib/libeconf.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:	2234498, 2235235, 2235237, 2235238
Bug Blocks:	2234597

Description Pedro Sampaio 2023-08-24 14:55:50 UTC

A stack overflow vulnerability exists in function econf_writeFile in file atlibeconf/lib/libeconf.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-write-string-data.c
https://github.com/openSUSE/libeconf/issues/178
https://github.com/yangjiageng/PoC/blob/master/libeconf-PoC/econf_writeFile_546

Comment 2 Sandipan Roy 2023-08-28 05:37:55 UTC

Created libeconf tracking bugs for this issue:

Affects: fedora-all [bug 2235235]