PT-2009-4718 · Linux · Linux Kernel

Matt T. Yourst · Publicado 2009-07-01 · Atualizado 2020-08-19 · CVE-2009-2287

Positive Technologies (AI Summary)

CVSS v2.0

4.9

Média

Vetor base

AV:L/AC:L/Au:N/C:N/I:N/A:C

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 2.6.30

Description The issue allows local users to cause a denial of service, resulting in a system crash or hang, by providing a crafted cr3 value in a KVM SET SREGS call. This triggers a NULL pointer dereference in the gfn to rmap function due to the lack of validation of the page table root.

Recommendations For Linux kernel versions prior to 2.6.30, update to version 2.6.30 or later to resolve the issue.

Correção

NULL Pointer Dereference

Enumeração de Fraquezas

CWE-476

Identificadores relacionados

CVE-2009-2287

DSA-1845-1

DSA-1846-1

Produtos afetados

Linux Kernel

Referências · 11

• https://nvd.nist.gov/vuln/detail/CVE-2009-2287 · Nota de Segurança
• http://ubuntu.com/usn/usn-807-1 · Aviso do Fabricante
• http://secunia.com/advisories/36045 · Nota
• http://debian.org/security/2009/dsa-1845 · Aviso do Fabricante
• http://mandriva.com/security/advisories?name=MDVSA-2010:198 · Aviso do Fabricante
• http://git.kernel.org/?p=linux/kernel/git/stable/stable-queue.git%3Ba=blob%3Bf=queue-2.6.30/kvm-x86-check-for-cr3-validity-in-ioctl_set_sregs.patch%3Bh=b48a47dad2cf76358b327368f80c0805e6370c68%3Bhb=e7c45b24f298b5d9efd7d401150f64a1b51aaac4 · Nota
• http://sourceforge.net/tracker/?func=detail&atid=893831&aid=2687641&group_id=180599 · Nota
• http://secunia.com/advisories/35675 · Nota
• http://openwall.com/lists/oss-security/2009/06/30/1 · Correção
• http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commitdiff%3Bh=59839dfff5eabca01cc4e20b45797a60a80af8cb · Nota
• http://secunia.com/advisories/36054 · Nota