Bug 1459482 (CVE-2017-9462)

Summary:	CVE-2017-9462 mercurial: Python debugger accessible to authorized users
Product:	[Other] Security Response	Reporter:	Adam Mariš <amaris>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	CC:	mads, ndbecker2, pstodulk
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	mercurial 4.1.3	Doc Type:	If docs needed, set a value
Doc Text:	A flaw was found in the way "hg serve --stdio" command in Mercurial handled command-line options. A remote, authenticated attacker could use this flaw to execute arbitrary code on the Mercurial server by using specially crafted command-line options.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2019-06-08 03:14:50 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:	1459485, 1460964, 1460965, 1460966, 1460967
Bug Blocks:	1459488

Description Adam Mariš 2017-06-07 09:23:41 UTC

In Mercurial before 4.1.3, "hg serve --stdio" allows remote authenticated users to launch the Python debugger, and consequently execute arbitrary code, by using --debugger as a repository name.

Reference:

https://www.mercurial-scm.org/wiki/WhatsNew#Mercurial_4.1.3_.282017-4-18.29

Upstream patch:

https://www.mercurial-scm.org/repo/hg/rev/77eaf9539499

Comment 1 Adam Mariš 2017-06-07 09:24:10 UTC

Created mercurial tracking bugs for this issue:

Affects: fedora-all [bug 1459485]

Comment 9 errata-xmlrpc 2017-06-27 07:31:04 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6
  Red Hat Enterprise Linux 7

Via RHSA-2017:1576 https://access.redhat.com/errata/RHSA-2017:1576