Vulnerability CVE-2014-4699

Vulnerability CVE-2014-4699

Published: 2014-07-09

Description:

The Linux kernel before 3.15.4 on Intel processors does not properly restrict use of a non-canonical value for the saved RIP address in the case of a system call that does not use IRET, which allows local users to leverage a race condition and gain privileges, or cause a denial of service (double fault), via a crafted application that makes ptrace and fork system calls.

See advisories in our WLB2 database:

	Topic	Author	Date
Med.	Linux Kernel ptrace/sysret Local Privilege Escalation	Vitaly Nikolenko	23.07.2014

Type:

CWE-362

CVSS2 => (AV:L/AC:M/Au:N/C:C/I:C/A:C)

CVSS Base Score	Impact Subscore	Exploitability Subscore
6.9/10	10/10	3.4/10

Exploit range	Attack complexity	Authentication
Local	Medium	No required
Confidentiality impact	Integrity impact	Availability impact
Complete	Complete	Complete

Affected software
Linux -> Linux kernel

References:

https://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.4.97

https://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.14.11

https://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.10.47

https://github.com/torvalds/linux/commit/b9cd18de4db3c9ffa7e17b0dc0ca99ed5aa4d43a

https://bugzilla.redhat.com/show_bug.cgi?id=1115927

http://www.ubuntu.com/usn/USN-2274-1

http://www.ubuntu.com/usn/USN-2273-1

http://www.ubuntu.com/usn/USN-2272-1

http://www.ubuntu.com/usn/USN-2271-1

http://www.ubuntu.com/usn/USN-2270-1

http://www.ubuntu.com/usn/USN-2269-1

http://www.ubuntu.com/usn/USN-2268-1

http://www.ubuntu.com/usn/USN-2267-1

http://www.ubuntu.com/usn/USN-2266-1

http://www.osvdb.org/108754

http://www.openwall.com/lists/oss-security/2014/07/04/4

http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.15.4

http://www.exploit-db.com/exploits/34134

http://www.debian.org/security/2014/dsa-2972

http://secunia.com/advisories/60393

http://secunia.com/advisories/60380

http://secunia.com/advisories/60220

http://secunia.com/advisories/59654

http://secunia.com/advisories/59639

http://secunia.com/advisories/59633

http://packetstormsecurity.com/files/127573/Linux-Kernel-ptrace-sysret-Local-Privilege-Escalation.html

http://openwall.com/lists/oss-security/2014/07/08/5

http://openwall.com/lists/oss-security/2014/07/08/16

http://openwall.com/lists/oss-security/2014/07/05/4

http://linux.oracle.com/errata/ELSA-2014-3048.html

http://linux.oracle.com/errata/ELSA-2014-3047.html

http://linux.oracle.com/errata/ELSA-2014-0924.html

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=b9cd18de4db3c9ffa7e17b0dc0ca99ed5aa4d43a

Vulnerability CVE-2014-4699

See advisories in our WLB2 database:

Med.

Linux Kernel ptrace/sysret Local Privilege Escalation

CWE-362

CVSS2 => (AV:L/AC:M/Au:N/C:C/I:C/A:C)

6.9/10

10/10

3.4/10

Local

Medium

No required

Complete

Complete

Complete

Affected software

References: