Linux kernel on PowerPC using HTX signal handling denial of service

kernel-htx-signal-dos (35383) The risk level is classified as LowLow Risk

Description:

The Linux kernel on PowerPC using HTX is vulnerable to a denial of service, caused by a vulnerability in the signal handling service. A local attacker could exploit this vulnerability to cause a denial of service.

Platforms Affected:

  • Canonical, Ubuntu 6.10
  • Canonical, Ubuntu 7.04
  • Canonical, Ubuntu 7.10
  • Linux, Kernel 2.6.10
  • Linux, Kernel 2.6.10 rc3
  • Linux, Kernel 2.6.10 rc2
  • Linux, Kernel 2.6.10 rc1
  • Linux, Kernel 2.6.11 rc4
  • Linux, Kernel 2.6.11 rc3
  • Linux, Kernel 2.6.11 rc2
  • Linux, Kernel 2.6.11
  • Linux, Kernel 2.6.11 rc1
  • Linux, Kernel 2.6.11 rc5
  • 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 rc6
  • Linux, Kernel 2.6.12 rc5
  • 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
  • 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 rc7
  • Linux, Kernel 2.6.13 rc6
  • Linux, Kernel 2.6.13 rc5
  • Linux, Kernel 2.6.13 rc4
  • Linux, Kernel 2.6.13 rc3
  • Linux, Kernel 2.6.13 rc2
  • Linux, Kernel 2.6.13 rc1
  • 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 rc5
  • Linux, Kernel 2.6.14 rc4
  • Linux, Kernel 2.6.14 rc3
  • Linux, Kernel 2.6.14 rc1
  • Linux, Kernel 2.6.14
  • Linux, Kernel 2.6.14 rc2
  • Linux, Kernel 2.6.14.1
  • Linux, Kernel 2.6.14.2
  • Linux, Kernel 2.6.14.3
  • Linux, Kernel 2.6.14.4
  • Linux, Kernel 2.6.14.5
  • Linux, Kernel 2.6.14.6
  • Linux, Kernel 2.6.14.7
  • Linux, Kernel 2.6.15 rc2
  • Linux, Kernel 2.6.15
  • Linux, Kernel 2.6.15 rc1
  • Linux, Kernel 2.6.15 rc7
  • Linux, Kernel 2.6.15 rc6
  • Linux, Kernel 2.6.15 rc5
  • Linux, Kernel 2.6.15 rc4
  • Linux, Kernel 2.6.15 rc3
  • Linux, Kernel 2.6.15.1
  • Linux, Kernel 2.6.15.11
  • Linux, Kernel 2.6.15.2
  • Linux, Kernel 2.6.15.3
  • Linux, Kernel 2.6.15.4
  • Linux, Kernel 2.6.15.5
  • Linux, Kernel 2.6.15.6
  • Linux, Kernel 2.6.15.7
  • Linux, Kernel 2.6.16 rc5
  • Linux, Kernel 2.6.16 rc4
  • Linux, Kernel 2.6.16 rc3
  • Linux, Kernel 2.6.16
  • Linux, Kernel 2.6.16 rc7
  • Linux, Kernel 2.6.16 rc6
  • Linux, Kernel 2.6.16.1
  • Linux, Kernel 2.6.16.10
  • Linux, Kernel 2.6.16.11
  • Linux, Kernel 2.6.16.12
  • Linux, Kernel 2.6.16.13
  • Linux, Kernel 2.6.16.14
  • Linux, Kernel 2.6.16.15
  • Linux, Kernel 2.6.16.16
  • Linux, Kernel 2.6.16.17
  • Linux, Kernel 2.6.16.18
  • Linux, Kernel 2.6.16.19
  • Linux, Kernel 2.6.16.2
  • Linux, Kernel 2.6.16.20
  • Linux, Kernel 2.6.16.21
  • Linux, Kernel 2.6.16.22
  • Linux, Kernel 2.6.16.23
  • Linux, Kernel 2.6.16.24
  • Linux, Kernel 2.6.16.25
  • Linux, Kernel 2.6.16.26
  • Linux, Kernel 2.6.16.27
  • Linux, Kernel 2.6.16.28
  • Linux, Kernel 2.6.16.29
  • Linux, Kernel 2.6.16.3
  • Linux, Kernel 2.6.16.30
  • Linux, Kernel 2.6.16.31
  • Linux, Kernel 2.6.16.32
  • Linux, Kernel 2.6.16.33
  • Linux, Kernel 2.6.16.34
  • Linux, Kernel 2.6.16.35
  • Linux, Kernel 2.6.16.36
  • Linux, Kernel 2.6.16.37
  • Linux, Kernel 2.6.16.38
  • Linux, Kernel 2.6.16.39
  • Linux, Kernel 2.6.16.4
  • Linux, Kernel 2.6.16.40
  • Linux, Kernel 2.6.16.41
  • Linux, Kernel 2.6.16.43
  • Linux, Kernel 2.6.16.44
  • Linux, Kernel 2.6.16.45
  • Linux, Kernel 2.6.16.46
  • Linux, Kernel 2.6.16.47
  • Linux, Kernel 2.6.16.48
  • Linux, Kernel 2.6.16.49
  • Linux, Kernel 2.6.16.5
  • Linux, Kernel 2.6.16.50
  • Linux, Kernel 2.6.16.51
  • Linux, Kernel 2.6.16.52
  • Linux, Kernel 2.6.16.53
  • Linux, Kernel 2.6.16.6
  • Linux, Kernel 2.6.16.7
  • Linux, Kernel 2.6.16.8
  • Linux, Kernel 2.6.16.9
  • Linux, Kernel 2.6.17
  • Linux, Kernel 2.6.17 rc1
  • Linux, Kernel 2.6.17 rc6
  • Linux, Kernel 2.6.17 rc5
  • Linux, Kernel 2.6.17 rc4
  • Linux, Kernel 2.6.17 rc3
  • Linux, Kernel 2.6.17 rc2
  • Linux, Kernel 2.6.17.1
  • Linux, Kernel 2.6.17.10
  • Linux, Kernel 2.6.17.11
  • Linux, Kernel 2.6.17.12
  • Linux, Kernel 2.6.17.13
  • Linux, Kernel 2.6.17.14
  • Linux, Kernel 2.6.17.2
  • Linux, Kernel 2.6.17.3
  • Linux, Kernel 2.6.17.4
  • Linux, Kernel 2.6.17.5
  • Linux, Kernel 2.6.17.6
  • Linux, Kernel 2.6.17.7
  • Linux, Kernel 2.6.17.8
  • Linux, Kernel 2.6.17.9
  • Linux, Kernel 2.6.18 rc3
  • Linux, Kernel 2.6.18 rc4
  • Linux, Kernel 2.6.18 rc6
  • Linux, Kernel 2.6.18 rc7
  • Linux, Kernel 2.6.18
  • Linux, Kernel 2.6.18 rc5
  • Linux, Kernel 2.6.18 rc2
  • Linux, Kernel 2.6.18 rc1
  • Linux, Kernel 2.6.18.1
  • Linux, Kernel 2.6.18.10
  • Linux, Kernel 2.6.18.11
  • Linux, Kernel 2.6.18.12
  • Linux, Kernel 2.6.18.13
  • Linux, Kernel 2.6.18.14
  • Linux, Kernel 2.6.18.15
  • Linux, Kernel 2.6.18.16
  • Linux, Kernel 2.6.18.17
  • Linux, Kernel 2.6.18.18
  • Linux, Kernel 2.6.18.19
  • Linux, Kernel 2.6.18.2
  • Linux, Kernel 2.6.18.20
  • Linux, Kernel 2.6.18.21
  • Linux, Kernel 2.6.18.22
  • Linux, Kernel 2.6.18.23
  • Linux, Kernel 2.6.18.24
  • Linux, Kernel 2.6.18.25
  • Linux, Kernel 2.6.18.26
  • Linux, Kernel 2.6.18.27
  • Linux, Kernel 2.6.18.28
  • Linux, Kernel 2.6.18.29
  • Linux, Kernel 2.6.18.3
  • Linux, Kernel 2.6.18.30
  • Linux, Kernel 2.6.18.31
  • Linux, Kernel 2.6.18.32
  • Linux, Kernel 2.6.18.33
  • Linux, Kernel 2.6.18.34
  • Linux, Kernel 2.6.18.35
  • Linux, Kernel 2.6.18.36
  • Linux, Kernel 2.6.18.37
  • Linux, Kernel 2.6.18.38
  • Linux, Kernel 2.6.18.39
  • Linux, Kernel 2.6.18.4
  • Linux, Kernel 2.6.18.40
  • Linux, Kernel 2.6.18.41
  • Linux, Kernel 2.6.18.42
  • Linux, Kernel 2.6.18.43
  • Linux, Kernel 2.6.18.44
  • Linux, Kernel 2.6.18.45
  • Linux, Kernel 2.6.18.46
  • Linux, Kernel 2.6.18.47
  • Linux, Kernel 2.6.18.48
  • Linux, Kernel 2.6.18.49
  • Linux, Kernel 2.6.18.5
  • Linux, Kernel 2.6.18.50
  • Linux, Kernel 2.6.18.51
  • Linux, Kernel 2.6.18.52
  • Linux, Kernel 2.6.18.53
  • Linux, Kernel 2.6.18.6
  • Linux, Kernel 2.6.18.7
  • Linux, Kernel 2.6.18.8
  • Linux, Kernel 2.6.18.9
  • Linux, Kernel 2.6.19 rc1
  • Linux, Kernel 2.6.19 rc2
  • Linux, Kernel 2.6.19 rc3
  • Linux, Kernel 2.6.19 rc4
  • Linux, Kernel 2.6.19.0
  • Linux, Kernel 2.6.19.1
  • Linux, Kernel 2.6.19.2
  • Linux, Kernel 2.6.19.3
  • Linux, Kernel 2.6.19.4
  • Linux, Kernel 2.6.2
  • Linux, Kernel 2.6.20 rc2
  • Linux, Kernel 2.6.20
  • Linux, Kernel 2.6.20.1
  • Linux, Kernel 2.6.20.10
  • Linux, Kernel 2.6.20.11
  • Linux, Kernel 2.6.20.12
  • Linux, Kernel 2.6.20.13
  • Linux, Kernel 2.6.20.14
  • Linux, Kernel 2.6.20.15
  • Linux, Kernel 2.6.20.2
  • Linux, Kernel 2.6.20.3
  • Linux, Kernel 2.6.20.4
  • Linux, Kernel 2.6.20.5
  • Linux, Kernel 2.6.20.6
  • Linux, Kernel 2.6.20.7
  • Linux, Kernel 2.6.20.8
  • Linux, Kernel 2.6.20.9
  • Linux, Kernel 2.6.21
  • Linux, Kernel 2.6.21 git6
  • Linux, Kernel 2.6.21 git7
  • Linux, Kernel 2.6.21 git5
  • Linux, Kernel 2.6.21 git4
  • Linux, Kernel 2.6.21 git3
  • Linux, Kernel 2.6.21 git2
  • Linux, Kernel 2.6.21 git1
  • Linux, Kernel 2.6.21 rc7
  • Linux, Kernel 2.6.21 rc6
  • Linux, Kernel 2.6.21 rc5
  • Linux, Kernel 2.6.21 rc4
  • Linux, Kernel 2.6.21 rc3
  • Linux, Kernel 2.6.21.1
  • Linux, Kernel 2.6.21.2
  • Linux, Kernel 2.6.21.3
  • Linux, Kernel 2.6.21.4
  • Linux, Kernel 2.6.21.5
  • Linux, Kernel 2.6.21.6
  • Linux, Kernel 2.6.21.7
  • Linux, Kernel 2.6.3
  • 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 2.6.4
  • Linux, Kernel 2.6.4 rc3
  • Linux, Kernel 2.6.4 rc1
  • Linux, Kernel 2.6.4 rc2
  • Linux, Kernel 2.6.5
  • Linux, Kernel 2.6.5 rc1
  • Linux, Kernel 2.6.5 rc2
  • Linux, Kernel 2.6.5 rc3
  • Linux, Kernel 2.6.6 rc2
  • Linux, Kernel 2.6.6 rc3
  • Linux, Kernel 2.6.6
  • Linux, Kernel 2.6.6 rc1
  • Linux, Kernel 2.6.7
  • Linux, Kernel 2.6.7 rc2
  • Linux, Kernel 2.6.7 rc1
  • Linux, Kernel 2.6.7 rc3
  • 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 rc4
  • Linux, Kernel 2.6.8.1
  • Linux, Kernel 2.6.9 rc1
  • Linux, Kernel 2.6.9 rc3
  • Linux, Kernel 2.6.9 rc2
  • Linux, Kernel 2.6.9
  • Linux, Kernel 2.6.9 rc4
  • Novell, Linux Desktop 9
  • Novell, Linux POS 9
  • Novell, Open Enterprise Server
  • Novell, Open Enterprise Server
  • Novell, OpenSUSE 10.2
  • Novell, OpenSUSE 10.3
  • Novell, SLE SDK 10 SP1
  • Novell, SUSE Linux Enterprise 10 SP1 DEBUGINFO
  • Novell, SUSE Linux Enterprise Desktop 10 SP1
  • Novell, SUSE Linux Enterprise Server 10 SP1
  • Novell, SUSE Linux Enterprise Server 10
  • Novell, UnitedLinux 1.0
  • RedHat, Enterprise Linux 5 Server
  • RedHat, Enterprise Linux 5 Client Workstation
  • RedHat, Enterprise Linux 5 Client
  • RedHat, Enterprise Linux 5
  • RedHat, Enterprise Linux Desktop 5.0
  • SuSE, Linux Enterprise Server 9
  • SuSE, SLE SDK 10
  • SuSE, SuSE Linux 10.1
  • SuSE, SuSE Linux Retail Solution 8
  • SuSE, SuSE SLES 9

Remedy:

For Red Hat Linux:
Refer to RHSA-2007:0595 for patch, upgrade, or suggested workaround information. See References.

For SUSE Linux (kernel):
Refer to SUSE-SA:2007:051 for patch, upgrade, or suggested workaround information. See References.

For other distributions:
Contact your vendor for upgrade or patch information.

Consequences:

Denial of Service

References:

  • Red Hat Bugzilla Bug 245580, CVE-2007-3107 Data buffer miscompare on PowerPC when running HTX at http://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=245580.
  • BID-24845: Linux PowerPC Kernel Restore_Sigcontext Local Denial of Service Vulnerability
  • CVE-2007-3107: The signal handling in the Linux kernel before 2.6.22, including 2.6.2, when running on PowerPC systems using HTX, allows local users to cause a denial of service via unspecified vectors involving floating point corruption and concurrency, related to clearing of MSR bits.
  • RHSA-2007-0595: Moderate: kernel security and bug fix update
  • SA25955: Linux Kernel Multiple Denial of Service Vulnerabilities
  • SECTRACK ID: 1018347: Linux Kernel Signal Handling Error on PowerPC Systems Lets Local Users Deny Service
  • SUSE-SA:2007:051: Linux kernel security update
  • SUSE-SA:2007:053: Linux kernel privilege escalation
  • USN-574-1: Linux kernel vulnerabilities

Reported:

Jun 25, 2007

The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall the author/distributor (IBM Internet Security Systems X-Force) be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.

For corrections or additions please email xforce@iss.net

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