CVE-2014-0049: Buffer Overflow
First published: Thu Feb 06 2014(Updated: )
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.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | <3.13.6 | |
| debian/linux | 5.10.223-1 5.10.234-1 6.1.129-1 6.1.133-1 6.12.22-1 |
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Reference Links
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=a08d3b3b99efd509133946056531cdf8f3a0c09b
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.13.6
- http://www.openwall.com/lists/oss-security/2014/03/03/1
- https://bugzilla.redhat.com/show_bug.cgi?id=1062368
- https://github.com/torvalds/linux/commit/a08d3b3b99efd509133946056531cdf8f3a0c09b
- https://launchpad.net/bugs/cve/CVE-2014-0049
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f78146b0f
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=a08d3b3b99efd509133946056531cdf8f3a0c09b
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1071837
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=a08d3b3b99efd509133946056531cdf8f3a0c09b
- https://security-tracker.debian.org/tracker/CVE-2014-0049
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-0049
- https://nvd.nist.gov/vuln/detail/CVE-2014-0049
- https://ubuntu.com/security/CVE-2014-0049
Frequently Asked Questions
What is the severity of CVE-2014-0049?
CVE-2014-0049 is classified as a critical vulnerability due to its potential for remote code execution on the host OS.
How do I fix CVE-2014-0049?
To fix CVE-2014-0049, upgrade the Linux kernel to version 3.13.6 or later.
Which Linux kernel versions are affected by CVE-2014-0049?
CVE-2014-0049 affects Linux kernel versions prior to 3.13.6.
Can CVE-2014-0049 impact cloud services?
Yes, CVE-2014-0049 can impact cloud services that rely on the vulnerable versions of the Linux kernel.
What types of systems are at risk from CVE-2014-0049?
Systems running affected versions of the Linux kernel, particularly those hosting virtual machines, are at risk from CVE-2014-0049.
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