Bug 1070266 – VUL-0: CVE-2017-17052: kernel-source: The mm_init function in kernel/fork.c in the Linux kernel before4.12.10 does not clear the ->exe_file member of a new process'smm_struct, allowing a local attacker to achieve a use-after-free orpossi

Bug 1070266 - (CVE-2017-17052) VUL-0: CVE-2017-17052: kernel-source: The mm_init function in kernel/fork.c in the Linux kernel before4.12.10 does not clear the ->exe_file member of a new process'smm_struct, allowing a local attacker to achieve a use-after-free orpossi

(CVE-2017-17052)
Summary:	VUL-0: CVE-2017-17052: kernel-source: The mm_init function in kernel/fork.c i...

Status:	RESOLVED FIXED

Classification:	Novell Products
Product:	SUSE Security Incidents
Classification:	Novell Products
Component:	Incidents
Version:	unspecified
Hardware:	Other Other

Priority:	P3 - Medium Severity: Normal
Target Milestone:	---
Assigned To:	Security Team bot
QA Contact:	Security Team bot

URL:	https://smash.suse.de/issue/195760/
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Reported:	2017-11-29 07:14 UTC by Marcus Meissner
Modified:	2022-03-04 20:18 UTC (History)
CC List:	3 users (show)

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Found By:	Security Response Team
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Description Marcus Meissner 2017-11-29 07:14:23 UTC

CVE-2017-17052

The mm_init function in kernel/fork.c in the Linux kernel before
4.12.10 does not clear the ->exe_file member of a new process's
mm_struct, allowing a local attacker to achieve a use-after-free or
possibly have unspecified other impact by running a specially crafted
program.


References:
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2017-17052
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-17052

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=2b7e8665b4ff51c034c55df3cff76518d1a9ee3a

Comment 1 Marcus Meissner 2017-11-29 07:15:02 UTC

Fixes: 7c051267931a

points to 4.7+

Comment 3 Michal Hocko 2017-11-29 12:25:39 UTC

We already have the patch in SLE15 via stable. I've update the references. Older kernels shouldn't be affected.

Comment 7 Michal Hocko 2017-11-29 13:24:04 UTC

OK, understood and thanks for the clarification. I expect this is done from my side then. Bouncing back to sec team.

Comment 8 Marcus Meissner 2017-11-30 16:17:39 UTC

fixed in relevant branches