Bug 2255230 (CVE-2022-4603)

Summary:	CVE-2022-4603 ppp: improper validation of array index of the component pppdump
Product:	[Other] Security Response	Reporter:	Marian Rehak <mrehak>
Component:	vulnerability	Assignee:	Product Security <prodsec-ir-bot>
Status:	NEW ---	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	pajung
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	ppp 2.5.0	Doc Type:	If docs needed, set a value
Doc Text:	A potential buffer overflow vulnerability was found in ppp. This issue occurs via manipulation of the spkt.buf/rpkt.buf argument, which may cause a crash.	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:	2255231
Bug Blocks:	2255234

Description Marian Rehak 2023-12-19 12:21:55 UTC

A vulnerability classified as problematic has been found in ppp. Affected is the function dumpppp of the file pppdump/pppdump.c of the component pppdump. The manipulation of the argument spkt.buf/rpkt.buf leads to improper validation of array index. The real existence of this vulnerability is still doubted at the moment. The name of the patch is a75fb7b198eed50d769c80c36629f38346882cbf. It is recommended to apply a patch to fix this issue. VDB-216198 is the identifier assigned to this vulnerability. NOTE: pppdump is not used in normal process of setting up a PPP connection, is not installed setuid-root, and is not invoked automatically in any scenario.

https://vuldb.com/?id.216198
https://github.com/ppp-project/ppp/commit/a75fb7b198eed50d769c80c36629f38346882cbf

Comment 1 Marian Rehak 2023-12-19 12:22:09 UTC

Created ppp tracking bugs for this issue:

Affects: fedora-38 [bug 2255231]