CVE-2014-4699

high

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.

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

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

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://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

Details

Source: Mitre, NVD

Published: 2014-07-09

Risk Information

CVSS v2

Base Score: 6.9

Vector: CVSS2#AV:L/AC:M/Au:N/C:C/I:C/A:C

Severity: Medium

CVSS v3

Base Score: 8.8

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Severity: High