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Debian Security Advisory DSA 1845-1 (linux-2.6)

Information

Severity

Severity

High

Family

Family

Debian Local Security Checks

CVSSv2 Base

CVSSv2 Base

7.2

CVSSv2 Vector

CVSSv2 Vector

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

Solution Type

Solution Type

Vendor Patch

Created

Created

13 years ago

Modified

Modified

5 years ago

Summary

The remote host is missing an update to linux-2.6 announced via advisory DSA 1845-1.

Insight

Insight

Several vulnerabilities have been discovered in the Linux kernel that may lead to a denial of service, or privilege escalation. The Common Vulnerabilities and Exposures project identifies the following problems: CVE-2009-1895 Julien Tinnes and Tavis Ormandy reported an issue in the Linux personality code. Local users can take advantage of a setuid binary that can either be made to dereference a NULL pointer or drop privileges and return control to the user. This allows a user to bypass mmap_min_addr restrictions which can be exploited to execute arbitrary code. CVE-2009-2287 Matt T. Yourst discovered an issue in the kvm subsystem. Local users with permission to manipulate /dev/kvm can cause a denial of service (hang) by providing an invalid cr3 value to the KVM_SET_SREGS call. CVE-2009-2406 CVE-2009-2407 Ramon de Carvalho Valle discovered two issues with the eCryptfs layered filesystem using the fsfuzzer utility. A local user with permissions to perform an eCryptfs mount may modify the contents of a eCryptfs file, overflowing the stack and potentially gaining elevated privileges. For the stable distribution (lenny), these problems have been fixed in version 2.6.26-17lenny1. For the oldstable distribution (etch), these problems, where applicable, will be fixed in updates to linux-2.6 and linux-2.6.24. We recommend that you upgrade your linux-2.6 and user-mode-linux

Solution

Solution

https://secure1.securityspace.com/smysecure/catid.html?in=DSA%201845-1

Common Vulnerabilities and Exposures (CVE)