493558 – (CVE-2013-6432) Kernel : ping: NULL pointer dereference on write to msg_name (CVE-2013-6432)

Bug 493558 (CVE-2013-6432) - Kernel : ping: NULL pointer dereference on write to msg_name (CVE-2013-6432)

Summary: Kernel : ping: NULL pointer dereference on write to msg_name (CVE-2013-6432)

Status:	RESOLVED FIXED

Alias:	CVE-2013-6432

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:	2013-12-07 20:01 UTC by Agostino Sarubbo
Modified:	2022-03-25 16:45 UTC (History)
CC List:	1 user (show)

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

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Description Agostino Sarubbo gentoo-dev

2013-12-07 20:01:08 UTC

From ${URL} :

Linux kernel built with the TCP/IP networking support(CONFIG_NET) is vulnerable
to a NULL pointer dereference flaw. It could occur via a plain read(2) call on
a ping socket. Usage of ping sockets is generally restricted to privileged
users.

A user/program able to read from ping sockets could use this flaw to crash a
system resulting in DoS.

Upstream fix:
-------------
 -> https://git.kernel.org/linus/cf970c002d270c36202bd5b9c2804d3097a52da0

Comment 1 GLSAMaker/CVETool Bot gentoo-dev

2013-12-12 15:20:20 UTC

CVE-2013-6432 (http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-6432):
  The ping_recvmsg function in net/ipv4/ping.c in the Linux kernel before
  3.12.4 does not properly interact with read system calls on ping sockets,
  which allows local users to cause a denial of service (NULL pointer
  dereference and system crash) by leveraging unspecified privileges to
  execute a crafted application.

Comment 2 John Helmert III archtester

2022-03-25 16:45:22 UTC

Fix in 3.12.4