472476 – (CVE-2013-2148) Kernel : fanotify: info leak in copy_event_to_user (CVE-2013-2148)

Bug 472476 (CVE-2013-2148) - Kernel : fanotify: info leak in copy_event_to_user (CVE-2013-2148)

Summary: Kernel : fanotify: info leak in copy_event_to_user (CVE-2013-2148)

Status:	RESOLVED FIXED

Alias:	CVE-2013-2148

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

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

URL:	https://bugzilla.redhat.com/show_bug....
Whiteboard:
Keywords:

Depends on:
Blocks:

Reported:	2013-06-06 07:51 UTC by Agostino Sarubbo
Modified:	2022-03-25 15:17 UTC (History)
CC List:	1 user (show)

See Also:
Package list:
Runtime testing required:	---

Attachments
Add an attachment (proposed patch, testcase, etc.)

Note You need to log in before you can comment on or make changes to this bug.

Description Agostino Sarubbo gentoo-dev

2013-06-06 07:51:08 UTC

From ${URL} :

Linux kernel built with the Filesystem wide access notification
(CONFIG_FANOTIFY) support is vulnerable to an information leakage
flaw. The leaked bytes could be accessed via read(2) call on the
fanotify descriptor.

A user/program could use this flaw to leak kernel memory bytes.

Upstream fix:
-------------
 -> https://lkml.org/lkml/2013/6/3/128

Comment 1 GLSAMaker/CVETool Bot gentoo-dev

2013-08-30 01:39:49 UTC

CVE-2013-2148 (http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-2148):
  The fill_event_metadata function in fs/notify/fanotify/fanotify_user.c in
  the Linux kernel through 3.9.4 does not initialize a certain structure
  member, which allows local users to obtain sensitive information from kernel
  memory via a read operation on the fanotify descriptor.

Comment 2 John Helmert III archtester

2022-03-25 15:17:53 UTC

https://lkml.org/lkml/2013/6/3/128 is de1e0c40aceb9d5bff09c3a3b97b2f1b178af53f,
in 3.10.6 onwards.