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CVE-2014-4699

6.9 · MEDIUM

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 allow…

Published Jul 9, 2014linuxCWE-362EPSS 2.32%

Overview

CVE-2014-4699 is a medium-severity vulnerability affecting linux linux_kernel. It was published on July 9, 2014 and has a CVSS 2.0 base score of 6.9 (MEDIUM).

This vulnerability has a CVSS 2.0 base score of 6.9, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories and patches from linux. Update linux_kernel to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus
linuxlinux_kernel>= 2.6.17, < 3.2.61Affected

References

Refgit.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=b9cd18de4db3c9ffa7e17b0dc0ca99ed5aa4d43aReflinux.oracle.com/errata/ELSA-2014-0924.htmlReflinux.oracle.com/errata/ELSA-2014-3047.htmlReflinux.oracle.com/errata/ELSA-2014-3048.htmlRefopenwall.com/lists/oss-security/2014/07/05/4Refopenwall.com/lists/oss-security/2014/07/08/16Refopenwall.com/lists/oss-security/2014/07/08/5Refpacketstormsecurity.com/files/127573/Linux-Kernel-ptrace-sysret-Local-Privilege-Escalation.htmlRefsecunia.com/advisories/59633Refsecunia.com/advisories/59639

How CyberStrike helps

Frequently asked questions

What is CVE-2014-4699?

CVE-2014-4699 is a medium-severity vulnerability affecting linux linux_kernel. It was published on July 9, 2014 and has a CVSS 2.0 base score of 6.9 (MEDIUM).

How severe is CVE-2014-4699?

This vulnerability has a CVSS 2.0 base score of 6.9, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2014-4699?

Check the references section for vendor advisories and patches from linux. Update linux_kernel to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2014-4699?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2014-4699 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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