Scientific Linux Security Update : kernel on SL6.x i386/x86_64

Medium Nessus Plugin ID 76783


The remote Scientific Linux host is missing one or more security updates.


* It was found that the Linux kernel's ptrace subsystem allowed a traced process' instruction pointer to be set to a non-canonical memory address without forcing the non-sysret code path when returning to user space. A local, unprivileged user could use this flaw to crash the system or, potentially, escalate their privileges on the system.
(CVE-2014-4699, Important)

Note: The CVE-2014-4699 issue only affected systems using an Intel CPU.

* A flaw was found in the way the pppol2tp_setsockopt() and pppol2tp_getsockopt() functions in the Linux kernel's PPP over L2TP implementation handled requests with a non-SOL_PPPOL2TP socket option level. A local, unprivileged user could use this flaw to escalate their privileges on the system. (CVE-2014-4943, Important)

The system must be rebooted for this update to take effect.


Update the affected packages.

See Also

Plugin Details

Severity: Medium

ID: 76783

File Name: sl_20140723_kernel_on_SL6_x.nasl

Version: $Revision: 1.3 $

Type: local

Agent: unix

Published: 2014/07/25

Modified: 2015/11/16

Dependencies: 12634

Risk Information

Risk Factor: Medium


Base Score: 6.9

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

Vulnerability Information

CPE: x-cpe:/o:fermilab:scientific_linux

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/RedHat/release, Host/RedHat/rpm-list

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2014/07/23

Exploitable With


Core Impact

Reference Information

CVE: CVE-2014-4699, CVE-2014-4943