CVE-2009-2287 Null dereference in n/a

What is CVE-2009-2287?

CVE-2009-2287 is a medium-severity vulnerability in Canonical Ubuntu Linux, published on 1 Jul 2009. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

The kvm_arch_vcpu_ioctl_set_sregs function in the KVM in Linux kernel 2.6 before 2.6.30, when running on x86 systems, does not validate the page table root in a KVM_SET_SREGS call, which allows local users to cause a denial of service (crash or hang) via a crafted cr3 value, which triggers a NULL pointer dereference in the gfn_to_rmap function.

Weakness: CWE-476

Which versions are affected by CVE-2009-2287?

It affects 3 products.

Products include Canonical Ubuntu Linux, Debian Debian Linux, Linux kernel.

How do I fix CVE-2009-2287?

Apply the vendor's patch.

Is CVE-2009-2287 being exploited?

There is no known exploitation of CVE-2009-2287 in the wild and no public exploit code.

Other vulnerabilities in Canonical Ubuntu Linux

• CVE-2020-11651 SaltStack Salt Authentication Bypass Exploited Critical 9.8
• CVE-2020-7247 OpenSMTPD Remote Code Execution Exploited Critical 9.8
• CVE-2019-16928 Exim Out-of-bounds Write Exploited Critical 9.8
• CVE-2018-6789 Exim Buffer Overflow Exploited Critical 9.8
• CVE-2015-2590 Oracle Java SE and Java SE Embedded Remote Code Execution Exploited Critical 9.8

All Canonical Ubuntu Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DSA-1846-1, GHSA-76p8-35jq-5x43.