Bug 2181330 (CVE-2023-28772)

Summary:	CVE-2023-28772 kernel: lib/seq_buf.c has a seq_buf_putmem_hex buffer overflow
Product:	[Other] Security Response	Reporter:	Pedro Sampaio <psampaio>
Component:	vulnerability	Assignee:	Nobody <nobody>
Status:	NEW ---	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	acaringi, allarkin, bhu, chwhite, crwood, dbohanno, ddepaula, debarbos, dfreiber, dvlasenk, ezulian, hkrzesin, jarod, jburrell, jdenham, jfaracco, jferlan, jforbes, jlelli, joe.lawrence, jshortt, jstancek, jwyatt, kcarcia, kernel-mgr, ldoskova, lgoncalv, lzampier, nmurray, ptalbert, qzhao, rogbas, rrobaina, rvrbovsk, rysulliv, scweaver, tyberry, vkumar, walters, wcosta, williams, wmealing, ycote
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	Kernel 5.14-rc1	Doc Type:	If docs needed, set a value
Doc Text:	A buffer overflow write flaw was identified in seq_buf_putmem_hex in lib/seq_buf.c in seq_buf in the Linux Kernel. This issue may allow a user with special debug privileges such as ftrace or root to cause an overflow in the destination buffer due to a missing sanity check.	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:	2212207, 2212208
Bug Blocks:	2181331

Description Pedro Sampaio 2023-03-23 17:42:54 UTC

An issue was discovered in the Linux kernel before 5.13.3. lib/seq_buf.c has a seq_buf_putmem_hex buffer overflow.

References:

https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13.3
https://github.com/torvalds/linux/commit/d3b16034a24a112bb83aeb669ac5b9b01f744bb7
https://lkml.kernel.org/r/20210626032156.47889-1-yun.zhou@windriver.com
https://lore.kernel.org/lkml/20210625122453.5e2fe304@oasis.local.home/

Comment 5 errata-xmlrpc 2023-11-14 15:15:07 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2023:6901 https://access.redhat.com/errata/RHSA-2023:6901

Comment 6 errata-xmlrpc 2023-11-14 15:20:40 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2023:7077 https://access.redhat.com/errata/RHSA-2023:7077

Comment 9 errata-xmlrpc 2024-02-07 16:30:01 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.6 Extended Update Support

Via RHSA-2024:0724 https://access.redhat.com/errata/RHSA-2024:0724

Comment 11 errata-xmlrpc 2024-03-19 17:27:09 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.8 Extended Update Support

Via RHSA-2024:1404 https://access.redhat.com/errata/RHSA-2024:1404