CVE-2008-4539
CVE-2008-4539 is a high-severity vulnerability in Kvm Qumranet Kvm with a CVSS 2.0 base score of 7.2. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-119.
Key facts
- Severity: High (CVSS 2.0 base score 7.2)
- EPSS exploit prediction: 1% (41st percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-119
- Affected product: Kvm Qumranet Kvm
- Published:
- Last modified:
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.
Frequently asked questions
- What is CVE-2008-4539?
- 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.
- How severe is CVE-2008-4539?
- CVE-2008-4539 has a CVSS 2.0 base score of 7.2, rated high severity.
- Is CVE-2008-4539 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2008-4539?
- CVE-2008-4539 primarily affects Kvm Qumranet Kvm. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2008-4539?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2008-4539 published?
- CVE-2008-4539 was published on 2008-12-29 and last updated on 2026-06-16.
References
- http://git.kernel.dk/?p=qemu.git%3Ba=commitdiff%3Bh=65d35a09979e63541afc5bfc595b9f1b1b4ae069
- http://groups.google.com/group/linux.debian.changes.devel/msg/9e0dc008572f2867?dmode=source
- http://lists.opensuse.org/opensuse-security-announce/2009-04/msg00003.html
- http://secunia.com/advisories/25073
- http://secunia.com/advisories/29129
- http://secunia.com/advisories/33350
- http://secunia.com/advisories/34642
- http://secunia.com/advisories/35031
- http://secunia.com/advisories/35062
- http://svn.savannah.gnu.org/viewvc/?view=rev&root=qemu&revision=5587
- http://www.debian.org/security/2009/dsa-1799
- http://www.mail-archive.com/cvs-all%40freebsd.org/msg129730.html
- http://www.mail-archive.com/secure-testing-commits%40lists.alioth.debian.org/msg09322.html
- http://www.ubuntu.com/usn/usn-776-1
- https://bugzilla.redhat.com/show_bug.cgi?id=237342
- https://bugzilla.redhat.com/show_bug.cgi?id=448525
- https://bugzilla.redhat.com/show_bug.cgi?id=466890
- https://exchange.xforce.ibmcloud.com/vulnerabilities/47736
- https://launchpad.net/ubuntu/jaunty/+source/qemu/0.9.1+svn20081112-1ubuntu1
- https://www.redhat.com/archives/fedora-package-announce/2008-December/msg01223.html
Affected products (6)
- cpe:2.3:a:kvm_qumranet:kvm:*:*:*:*:*:*:*:*
- cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:8.04:*:*:*:-:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:8.10:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:4.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:5.0:*:*:*:*:*:*:*
More vulnerabilities in Kvm Qumranet Kvm
- CVE-2008-2382 — Medium (CVSS 5.0): The protocol_client_msg function in vnc.c in the VNC server in (1) Qemu 0.9.1 and earlier and (2) KVM kvm-79 and…
- CVE-2010-0419 — Medium (CVSS 4.4): The x86 emulator in KVM 83, when a guest is configured for Symmetric Multiprocessing (SMP), does not properly restrict…
- CVE-2010-0306 — Medium (CVSS 4.1): The x86 emulator in KVM 83, when a guest is configured for Symmetric Multiprocessing (SMP), does not use the Current…
All CVEs affecting Kvm Qumranet Kvm →
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