Bug 1898121 (CVE-2020-27745)

Summary:	CVE-2020-27745 slurm: potential buffer overflows from use of unpackmem()
Product:	[Other] Security Response	Reporter:	Michael Kaplan <mkaplan>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED UPSTREAM	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	pkfed
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	slurm 20.11.0rc2, slurm 20.02.6, slurm 19.05.8	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2020-11-16 17:28:33 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:	1898122
Bug Blocks:

Description Michael Kaplan 2020-11-16 13:06:34 UTC

A review of Slurm's RPC handling code uncovered a potential buffer overflow with one utility function. The only affected use is in Slurm's PMIx MPI plugin, and a job would only be vulnerable if --mpi=pmix was requested, or the site has set MpiDefault=pmix in slurm.conf.

Comment 1 Michael Kaplan 2020-11-16 13:06:38 UTC

External References:

https://github.com/SchedMD/slurm/commit/c3142dd87e06621ff148791c3d2f298b5c0b3a81
https://lists.schedmd.com/pipermail/slurm-announce/2020/000045.html
https://www.schedmd.com/news.php?id=240

Comment 2 Michael Kaplan 2020-11-16 13:07:04 UTC

Created slurm tracking bugs for this issue:

Affects: fedora-all [bug 1898122]

Comment 3 Product Security DevOps Team 2020-11-16 17:28:33 UTC

This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.