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CVE-2014-0049

7.4 · HIGH

Buffer overflow in the complete_emulated_mmio function in arch/x86/kvm/x86.c in the Linux kernel before 3.13.6 allows guest OS users to execute arbitrary code on the host OS by leveraging a loop th…

Published Mar 11, 2014linuxCWE-120EPSS 0.77%

Overview

CVE-2014-0049 is a high-severity vulnerability affecting linux linux_kernel. It was published on March 11, 2014 and has a CVSS 2.0 base score of 7.4 (HIGH).

This vulnerability has a CVSS 2.0 base score of 7.4, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

Buffer overflow in the complete_emulated_mmio function in arch/x86/kvm/x86.c in the Linux kernel before 3.13.6 allows guest OS users to execute arbitrary code on the host OS by leveraging a loop that triggers an invalid memory copy affecting certain cancel_work_item data.

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>= 0, < 3.13.6Affected

References

Refgit.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=a08d3b3b99efd509133946056531cdf8f3a0c09bRefwww.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.13.6Refwww.openwall.com/lists/oss-security/2014/03/03/1Refbugzilla.redhat.com/show_bug.cgi?id=1062368GitHubgithub.com/torvalds/linux/commit/a08d3b3b99efd509133946056531cdf8f3a0c09bRefgit.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=a08d3b3b99efd509133946056531cdf8f3a0c09bRefwww.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.13.6Refwww.openwall.com/lists/oss-security/2014/03/03/1Refbugzilla.redhat.com/show_bug.cgi?id=1062368GitHubgithub.com/torvalds/linux/commit/a08d3b3b99efd509133946056531cdf8f3a0c09b

How CyberStrike helps

Frequently asked questions

What is CVE-2014-0049?

CVE-2014-0049 is a high-severity vulnerability affecting linux linux_kernel. It was published on March 11, 2014 and has a CVSS 2.0 base score of 7.4 (HIGH).

How severe is CVE-2014-0049?

This vulnerability has a CVSS 2.0 base score of 7.4, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2014-0049?

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-2014-0049?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2014-0049 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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