CVE-2008-4539 Memory corruption in n/a
Local attackers can exploit a heap overflow in the Cirrus VGA emulation to gain elevated privileges or execute arbitrary code.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2008-4539?
CVE-2008-4539 is a high-severity memory corruption vulnerability in Canonical Ubuntu Linux, published on 29 Dec 2008. It can only be exploited from the same machine or local network, with no action from the victim.
Official 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.
Weakness: CWE-119
Which versions are affected by CVE-2008-4539?
It affects 4 products.
Products include Canonical Ubuntu Linux, Debian Debian Linux, Kvm Qumranet Kvm, Qemu Qemu.
How do I fix CVE-2008-4539?
Upgrade to a fixed version.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2008-4539 being exploited?
There is no known exploitation of CVE-2008-4539 in the wild and no public exploit code.
Other vulnerabilities in Canonical Ubuntu Linux
Sources
Also known as DEBIAN-CVE-2008-4539, GHSA-gq7c-3rjh-ggvh.