Bug 1143038 – VUL-1: CVE-2018-20854: kernel-source: out-of-bounds read on array ctrl->phys, once variable i reaches the maximum array size

Bug 1143038 - (CVE-2018-20854) VUL-1: CVE-2018-20854: kernel-source: out-of-bounds read on array ctrl->phys, once variable i reaches the maximum array size

(CVE-2018-20854)
Summary:	VUL-1: CVE-2018-20854: kernel-source: out-of-bounds read on array ctrl->phys,...

Status:	RESOLVED FIXED

Classification:	openSUSE
Product:	openSUSE Tumbleweed
Classification:	openSUSE
Component:	Security
Version:	Current
Hardware:	Other Other

Priority:	P4 - Low Severity: Minor (vote)
Target Milestone:	---
Assigned To:	Security Team bot
QA Contact:	Security Team bot

URL:	https://smash.suse.de/issue/238066/
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Reported:	2019-07-26 13:12 UTC by Alexandros Toptsoglou
Modified:	2020-05-12 11:20 UTC (History)
CC List:	2 users (show)

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Found By:	Security Response Team
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Description Alexandros Toptsoglou 2019-07-26 13:12:51 UTC

CVE-2018-20854

An issue was discovered in the Linux kernel before 4.20.
drivers/phy/mscc/phy-ocelot-serdes.c has an off-by-one error with a resultant
ctrl->phys out-of-bounds read.

References:
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2018-20854
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-20854
https://github.com/torvalds/linux/commit/6acb47d1a318e5b3b7115354ebc4ea060c59d3a1
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=6acb47d1a318e5b3b7115354ebc4ea060c59d3a1

Comment 1 Alexandros Toptsoglou 2019-07-26 13:15:38 UTC

Only versions above 4.20 are affected. The fix had already been pushed upstream last year

Comment 2 Takashi Iwai 2019-07-26 13:34:22 UTC

Right, it was only about TW, and it's done.  SLE15-SPx don't contain the driver.
Reassigned back to security team.

Comment 3 Alexandros Toptsoglou 2020-05-12 11:20:52 UTC

Done