Linux kernel fs/locks.c lease_init() denial of service

linux-locks-lease-init-dos (26437) The risk level is classified as MediumMedium Risk

Description:

Linux kernel could allow a remote attacker to cause a denial of service, caused by an error in the fs/locks.c lease_init() function. A local attacker could exploit this vulnerability to cause a lockup in the fcntl_setlease() function, resulting in a denial of service.


Consequences:

Denial of Service

Remedy:

Upgrade to the latest stable version of the Linux kernel (2.6.16.16 or later), available from The Linux Kernel Archives. See References.

References:

  • The Linux Kernel Archives: ChangeLog-2.6.16.16.
  • BID-17943: Linux Kernel Lease_Init Local Denial of Service Vulnerability
  • CVE-2006-1860: lease_init in fs/locks.c in Linux kernel before 2.6.16.16 allows attackers to cause a denial of service (fcntl_setlease lockup) via actions that cause lease_init to free a lock that might not have been allocated on the stack.
  • MDKSA-2006:123: Updated kernel packages fixes multiple vulnerabilities
  • OSVDB ID: 25425: Linux Kernel lease_init() Function Lock Allocation Local DoS
  • SA20083: Linux Kernel "lease_init()" Denial of Service Vulnerability
  • SUSE-SA:2006:042: kernel local privilege escalation
  • USN-302-1: Linux kernel vulnerabilities

Platforms Affected:

  • Canonical Ubuntu 5.04
  • Canonical Ubuntu 5.10
  • Canonical Ubuntu 6.06 LTS
  • Linux Kernel 2.6.0 test9
  • Linux Kernel 2.6.0 test5
  • Linux Kernel 2.6.0 test4
  • Linux Kernel 2.6.0 test3
  • Linux Kernel 2.6.0 test2
  • Linux Kernel 2.6.0 test11
  • Linux Kernel 2.6.0 test10
  • Linux Kernel 2.6.0 test1
  • Linux Kernel 2.6.0 test7
  • Linux Kernel 2.6.0 test6
  • Linux Kernel 2.6.0 test8
  • Linux Kernel 2.6.0
  • Linux Kernel 2.6.1 rc2
  • Linux Kernel 2.6.1 rc3
  • Linux Kernel 2.6.1 rc1
  • Linux Kernel 2.6.1
  • Linux Kernel 2.6.10 rc2
  • Linux Kernel 2.6.10 rc1
  • Linux Kernel 2.6.10 rc3
  • Linux Kernel 2.6.10
  • Linux Kernel 2.6.11 rc1
  • Linux Kernel 2.6.11 rc2
  • Linux Kernel 2.6.11 rc3
  • Linux Kernel 2.6.11 rc5
  • Linux Kernel 2.6.11 rc4
  • Linux Kernel 2.6.11
  • Linux Kernel 2.6.11.1
  • Linux Kernel 2.6.11.10
  • Linux Kernel 2.6.11.11
  • Linux Kernel 2.6.11.12
  • Linux Kernel 2.6.11.2
  • Linux Kernel 2.6.11.3
  • Linux Kernel 2.6.11.4
  • Linux Kernel 2.6.11.5
  • Linux Kernel 2.6.11.6
  • Linux Kernel 2.6.11.7
  • Linux Kernel 2.6.11.8
  • Linux Kernel 2.6.11.9
  • Linux Kernel 2.6.12 rc4
  • Linux Kernel 2.6.12 rc3
  • Linux Kernel 2.6.12 rc2
  • Linux Kernel 2.6.12 rc1
  • Linux Kernel 2.6.12 rc6
  • Linux Kernel 2.6.12 rc5
  • Linux Kernel 2.6.12
  • Linux Kernel 2.6.12.1
  • Linux Kernel 2.6.12.12
  • Linux Kernel 2.6.12.2
  • Linux Kernel 2.6.12.22
  • Linux Kernel 2.6.12.3
  • Linux Kernel 2.6.12.4
  • Linux Kernel 2.6.12.5
  • Linux Kernel 2.6.12.6
  • Linux Kernel 2.6.13 rc2
  • Linux Kernel 2.6.13 rc1
  • Linux Kernel 2.6.13 rc3
  • Linux Kernel 2.6.13 rc4
  • Linux Kernel 2.6.13 rc5
  • Linux Kernel 2.6.13 rc6
  • Linux Kernel 2.6.13 rc7
  • Linux Kernel 2.6.13
  • Linux Kernel 2.6.13.1
  • Linux Kernel 2.6.13.2
  • Linux Kernel 2.6.13.3
  • Linux Kernel 2.6.13.4
  • Linux Kernel 2.6.13.5
  • Linux Kernel 2.6.14 rc2
  • Linux Kernel 2.6.14
  • Linux Kernel 2.6.14 rc5
  • Linux Kernel 2.6.14 rc1
  • Linux Kernel 2.6.14 rc3
  • Linux Kernel 2.6.14 rc4
  • Linux Kernel 2.6.15 rc7
  • Linux Kernel 2.6.15 rc5
  • Linux Kernel 2.6.15 rc2
  • Linux Kernel 2.6.15 rc3
  • Linux Kernel 2.6.15 rc4
  • Linux Kernel 2.6.15 rc1
  • Linux Kernel 2.6.15 rc6
  • Linux Kernel 2.6.15.11
  • Linux Kernel 2.6.16 rc7
  • Linux Kernel 2.6.2 rc3
  • Linux Kernel 2.6.2 rc2
  • Linux Kernel 2.6.2 rc1
  • Linux Kernel 2.6.3 rc1
  • Linux Kernel 2.6.3 rc4
  • Linux Kernel 2.6.3 rc3
  • Linux Kernel 2.6.3 rc2
  • Linux Kernel 2.6.3
  • Linux Kernel 2.6.4 rc3
  • Linux Kernel 2.6.4 rc2
  • Linux Kernel 2.6.4 rc1
  • Linux Kernel 2.6.4
  • Linux Kernel 2.6.5 rc3
  • Linux Kernel 2.6.5 rc2
  • Linux Kernel 2.6.5 rc1
  • Linux Kernel 2.6.5
  • Linux Kernel 2.6.6 rc1
  • Linux Kernel 2.6.6 rc3
  • Linux Kernel 2.6.6 rc2
  • Linux Kernel 2.6.6
  • Linux Kernel 2.6.7 rc3
  • Linux Kernel 2.6.7 rc2
  • Linux Kernel 2.6.7 rc1
  • Linux Kernel 2.6.7
  • Linux Kernel 2.6.8 rc4
  • Linux Kernel 2.6.8 rc3
  • Linux Kernel 2.6.8 rc2
  • Linux Kernel 2.6.8 rc1
  • Linux Kernel 2.6.8
  • Linux Kernel 2.6.8.1
  • Linux Kernel 2.6.9 rc4
  • Linux Kernel 2.6.9 rc3
  • Linux Kernel 2.6.9 rc2
  • Linux Kernel 2.6.9 rc1
  • Linux Kernel 2.6.9
  • Linux Linux Kernel 2.6.14.1
  • Linux Linux Kernel 2.6.14.2
  • Linux Linux Kernel 2.6.14.3
  • Linux Linux Kernel 2.6.14.4
  • Linux Linux Kernel 2.6.14.5
  • Linux Linux Kernel 2.6.14.6
  • Linux Linux Kernel 2.6.14.7
  • Linux Linux Kernel 2.6.15
  • Linux Linux Kernel 2.6.15.1
  • Linux Linux Kernel 2.6.15.2
  • Linux Linux Kernel 2.6.15.3
  • Linux Linux Kernel 2.6.15.4
  • Linux Linux Kernel 2.6.15.5
  • Linux Linux Kernel 2.6.15.6
  • Linux Linux Kernel 2.6.15.7
  • Linux Linux Kernel 2.6.16 rc3
  • Linux Linux Kernel 2.6.16 rc5
  • Linux Linux Kernel 2.6.16 rc6
  • Linux Linux Kernel 2.6.16
  • Linux Linux Kernel 2.6.16 rc4
  • Linux Linux Kernel 2.6.16.1
  • Linux Linux Kernel 2.6.16.2
  • Linux Linux Kernel 2.6.16.3
  • Linux Linux Kernel 2.6.16.4
  • Linux Linux Kernel 2.6.16.5
  • Linux Linux Kernel 2.6.2
  • MandrakeSoft Mandrake Linux 2006 X86_64
  • MandrakeSoft Mandrake Linux 2006
  • Novell Linux Desktop 9
  • SUSE SuSE Linux 10.1
  • SUSE SuSE Linux 9.1
  • SuSE SuSE SLES 9

Reported:

May 07, 2006

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