PT-2010-4435 · Linux · Linux Kernel

Eugene Teo + 1 · Publicado 2010-09-08 · Atualizado 2020-08-11 · CVE-2010-2960

Positive Technologies (AI Summary)

CVSS v2.0

7.2

Alta

Vetor base

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

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 2.6.35.4

Description The issue is related to the keyctl session to parent function in the Linux kernel, which expects a certain parent session keyring to exist. This expectation can be exploited by local users to cause a denial of service, resulting in a NULL pointer dereference and system crash, or possibly have other unspecified impacts. This can be achieved via a KEYCTL SESSION TO PARENT argument to the keyctl function.

Recommendations For Linux kernel versions prior to 2.6.35.4, consider upgrading to a newer version to resolve the issue. As a temporary workaround, restrict the use of the keyctl function with the KEYCTL SESSION TO PARENT argument to minimize the risk of exploitation.

Exploit

Correção

NULL Pointer Dereference

Enumeração de Fraquezas

CWE-476

Identificadores relacionados

CVE-2010-2960

Produtos afetados

Linux Kernel

Referências · 12

• 🔥 https://bugzilla.redhat.com/show_bug.cgi?id=627440 · Exploit
• http://lists.opensuse.org/opensuse-security-announce/2010-10/msg00003.html · Aviso do Fabricante
• http://securityfocus.com/bid/42932 · Nota
• http://vupen.com/english/advisories/2011/0298 · Nota
• http://lists.opensuse.org/opensuse-security-announce/2011-02/msg00000.html · Aviso do Fabricante
• http://ubuntu.com/usn/USN-1000-1 · Aviso do Fabricante
• http://secunia.com/advisories/41263 · Nota
• http://securitytracker.com/id?1024384 · Nota
• http://twitter.com/taviso/statuses/22777866582 · Nota
• https://nvd.nist.gov/vuln/detail/CVE-2010-2960 · Nota de Segurança
• http://openwall.com/lists/oss-security/2010/09/02/1 · Nota
• https://exchange.xforce.ibmcloud.com/vulnerabilities/61557 · Nota