628408 – (CVE-2017-10663) Linux Kernel Local Privilege Escalation (CVE-2017-10663)

Bug 628408 (CVE-2017-10663) - Linux Kernel Local Privilege Escalation (CVE-2017-10663)

Summary: Linux Kernel Local Privilege Escalation (CVE-2017-10663)

Status:	RESOLVED FIXED

Alias:	CVE-2017-10663

Product:	Gentoo Security
Classification:	Unclassified
Component:	Kernel (show other bugs)
Hardware:	All Linux

Importance:	Normal normal (vote)
Assignee:	Gentoo Kernel Security

URL:	https://web.nvd.nist.gov/view/vuln/de...
Whiteboard:
Keywords:

Depends on:
Blocks:

Reported:	2017-08-20 18:13 UTC by D'juan McDonald (domhnall)
Modified:	2022-03-26 00:12 UTC (History)
CC List:	1 user (show)

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Runtime testing required:	---

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Description D'juan McDonald (domhnall) 2017-08-20 18:13:57 UTC

From $URL:

The sanity_check_ckpt function in fs/f2fs/super.c in the Linux kernel before 4.12.4 does not validate the blkoff and segno arrays, which allows local users to gain privileges via unspecified vectors.

Sources:
https://github.com/torvalds/linux/commit/15d3042a937c13f5d9244241c7a9c8416ff6e82a
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.12.4

Comment 1 John Helmert III archtester

2022-03-26 00:12:14 UTC

Fix in 4.9.42, 4.13