Bug 2222779 (CVE-2023-38253)

Summary:	CVE-2023-38253 w3m: Out of bounds read in growbuf_to_Str() at w3m/indep.c
Product:	[Other] Security Response	Reporter:	Pedro Sampaio <psampaio>
Component:	vulnerability	Assignee:	Nobody <nobody>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	eng-i18n-bugs, pnemade
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:	An out-of-bounds read flaw was found in w3m, in the growbuf_to_Str function in indep.c. This issue may allow an attacker to cause a denial of service through a crafted HTML file.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2023-07-13 21:42:59 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:	2222780, 2222781
Bug Blocks:	2218959

Description Pedro Sampaio 2023-07-13 16:53:14 UTC

w3m 0.5.3+git20230129 has an out-of-bounds read in function
growbuf_to_Str  in indep.c. This allows attackers to cause a denial of
service via a crafted HTML file.

Upstream issue:

https://github.com/tats/w3m/issues/271

Comment 1 Pedro Sampaio 2023-07-13 16:53:31 UTC

Created w3m tracking bugs for this issue:

Affects: epel-all [bug 2222781]
Affects: fedora-all [bug 2222780]

Comment 2 Product Security DevOps Team 2023-07-13 21:42:58 UTC

This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2023-38253