Bug 582076 (CVE-2010-1162)

Summary:	CVE-2010-1162 kernel: tty: release_one_tty() forgets to put pids
Product:	[Other] Security Response	Reporter:	Eugene Teo (Security Response) <eteo>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	arozansk, bhu, lgoncalv, lwang, onestero, peterm, tcallawa, williams
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2016-03-29 10:15:20 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:	579408, 582077, 582444
Bug Blocks:

Description Eugene Teo (Security Response) 2010-04-14 02:55:34 UTC

Description of problem:
release_one_tty(tty) can be called when tty still has a reference to pgrp/session. In this case we leak the pid.

Upstream commit:
http://git.kernel.org/linus/6da8d866d0d39e9509ff826660f6a86a6757c966

Comment 6 Eugene Teo (Security Response) 2010-04-15 00:41:20 UTC

pgrp member in struct tty_struct was converted to struct pid in commit ab521dc0, so kernels of version v2.6.21-rc1 and above are affected by this. mrg-1 backported this patch.

Statement:

This issue did not affect the versions of the Linux kernel as shipped with Red Hat Enterprise Linux 3, 4 and 5 as they did not include upstream commit ab521dc0 that introduced the problem. This issue was addressed in Red Hat Enterprise MRG via https://rhn.redhat.com/errata/RHSA-2010-0631.html.

Comment 8 errata-xmlrpc 2010-08-17 15:54:25 UTC

This issue has been addressed in following products:

  MRG for RHEL-5

Via RHSA-2010:0631 https://rhn.redhat.com/errata/RHSA-2010-0631.html

Comment 9 Mike McCune 2016-03-28 23:33:48 UTC

This bug was accidentally moved from POST to MODIFIED via an error in automation, please see mmccune with any questions