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CVE-2008-4539

7.2 · HIGH

Heap-based buffer overflow in the Cirrus VGA implementation in (1) KVM before kvm-82 and (2) QEMU on Debian GNU/Linux and Ubuntu might allow local users to gain privileges by using the VNC console…

Published Dec 29, 2008kvm_qumranetCWE-119EPSS 0.54%

Overview

CVE-2008-4539 is a high-severity vulnerability affecting kvm_qumranet kvm. It was published on December 29, 2008 and has a CVSS 2.0 base score of 7.2 (HIGH).

This vulnerability has a CVSS 2.0 base score of 7.2, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical description

Heap-based buffer overflow in the Cirrus VGA implementation in (1) KVM before kvm-82 and (2) QEMU on Debian GNU/Linux and Ubuntu might allow local users to gain privileges by using the VNC console for a connection, aka the LGD-54XX "bitblt" heap overflow. NOTE: this issue exists because of an incorrect fix for CVE-2007-1320.

Remediation

Check the references section for vendor advisories and patches from kvm_qumranet. Update kvm 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
kvm_qumranetkvm0Affected
qemuqemu>= 0, < 0.10.0Affected

References

Refgit.kernel.dk/?p=qemu.git%3Ba=commitdiff%3Bh=65d35a09979e63541afc5bfc595b9f1b1b4ae069Refgroups.google.com/group/linux.debian.changes.devel/msg/9e0dc008572f2867?dmode=sourceReflists.opensuse.org/opensuse-security-announce/2009-04/msg00003.htmlRefsecunia.com/advisories/25073Refsecunia.com/advisories/29129Refsecunia.com/advisories/33350Refsecunia.com/advisories/34642Refsecunia.com/advisories/35031Refsecunia.com/advisories/35062Refsvn.savannah.gnu.org/viewvc/?view=rev&root=qemu&revision=5587

How CyberStrike helps

Frequently asked questions

What is CVE-2008-4539?

CVE-2008-4539 is a high-severity vulnerability affecting kvm_qumranet kvm. It was published on December 29, 2008 and has a CVSS 2.0 base score of 7.2 (HIGH).

How severe is CVE-2008-4539?

This vulnerability has a CVSS 2.0 base score of 7.2, rated HIGH. 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-2008-4539?

Check the references section for vendor advisories and patches from kvm_qumranet. Update kvm 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-2008-4539?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2008-4539 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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