Bug 1679544 (CVE-2018-19517)

Summary:	CVE-2018-19517 sysstat: Out of bounds read in remap_struct function in sa_common.c
Product:	[Other] Security Response	Reporter:	Pedro Sampaio <psampaio>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	abhgupta, dbaker, jokerman, kasal, msekleta, sthangav, trankin
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	sysstat 12.1.2	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2021-10-27 03:25:43 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:	1679545, 1686622
Bug Blocks:	1679546

Description Pedro Sampaio 2019-02-21 11:49:57 UTC

An issue was discovered in sysstat 12.1.1. The remap_struct function in sa_common.c has an out-of-bounds read during a memset call, as demonstrated by sadf.

Upstream issue:

https://github.com/sysstat/sysstat/issues/199

Upstream patch:

https://github.com/sysstat/sysstat/commit/fbc691eaaa10d0bcea6741d5a223dc3906106548

Comment 1 Pedro Sampaio 2019-02-21 11:50:06 UTC

Created sysstat tracking bugs for this issue:

Affects: fedora-all [bug 1679545]

Comment 2 Riccardo Schirone 2019-03-07 21:14:07 UTC

Statement:

This issue did not affect the versions of sysstat as shipped with Red Hat Enterprise Linux 5, 6, and 7 as they did not include the vulnerable function, which was introduced in newer version of the package.

Comment 3 Riccardo Schirone 2019-03-07 21:17:23 UTC

The vulnerable function, remap_struct, was introduced upstream with the following commit in version v11.7.1:
https://github.com/sysstat/sysstat/commit/65ac30359e49ee717397e39950d7c24a6610d57c