Bug 1835353

Summary:	rubygem-mail: Out of memory issue through nested MIME parts
Product:	[Other] Security Response	Reporter:	Pedro Sampaio <psampaio>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	akarol, alexl, bbuckingham, bcourt, bkearney, btotty, caillon+fedoraproject, caolanm, dmetzger, gmccullo, gnome-sig, gtanzill, hhudgeon, jfrey, jhardy, john.j5live, jose.p.oliveira.oss, lzap, mclasen, mmccune, nmoumoul, obarenbo, osoukup, paul, perl-devel, rchan, rhughes, rjerrido, rob.myers, roliveri, rstrode, sandmann, simaishi, smallamp, sokeeffe, tcallawa, vondruch, walter.pete, xavier, ytale
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	No Doc Update
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2020-06-18 07:22:32 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:	1835355, 1835358, 1835362, 1835360, 1835361
Bug Blocks:	1835356

Description Pedro Sampaio 2020-05-13 16:53:11 UTC

A possible DoS issue may affect several MIME parsers. Messages with too many tiny nested MIME parts can lead to memory exhaustion on split().

References:

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=960064
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=960062
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=960159
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=960158

Comment 1 Paul Howarth 2020-05-13 17:24:46 UTC

Upstream for perl-Email-MIME has a couple of trial releases out with mitigations for this; probably best to wait until a non-trial release that they're happy with is done.

Comment 2 Fedora Update System 2020-06-03 01:49:27 UTC

FEDORA-2020-22764f623f has been pushed to the Fedora 32 stable repository.
If problem still persists, please make note of it in this bug report.

Comment 3 Fedora Update System 2020-06-03 02:09:37 UTC

FEDORA-2020-39d40d9ae9 has been pushed to the Fedora 31 stable repository.
If problem still persists, please make note of it in this bug report.

Comment 4 Yadnyawalk Tale 2020-06-04 20:43:40 UTC

I tried to contact ruby-mail upstream but did not got any reply after initial response, I'm still not sure if upstream is considering it CVE worthy.

@Paul, do you know if we have updates specifically for ruby-mail package (https://github.com/mikel/mail) by any chance? (and not perl-Email-MIME, libemail-mime-perl, libgmime or libemail-mime-contenttype-perl)

Comment 5 Paul Howarth 2020-06-05 08:02:56 UTC

@Yadnyawalk, I've no idea about ruby-mail I'm afraid; my interest in this was regarding the perl modules, which I co-maintain.

Comment 6 Yadnyawalk Tale 2020-06-05 10:30:45 UTC

Acknowledged. Understood. Thanks.

Comment 7 Fedora Update System 2020-06-11 18:35:56 UTC

perl-Email-MIME-1.949-1.el8, perl-Email-MIME-ContentType-1.024-1.el8 has been pushed to the Fedora EPEL 8 stable repository. If problems still persist, please make note of it in this bug report.

Comment 8 Yadnyawalk Tale 2020-06-18 07:22:32 UTC

Closing this NOTABUG since did not found sufficient data to make any flaw decision.
Will re-open if we got any information on this or Product Security assembler will catch rubygem-mail issue anyways.