Bug 975531 - (CVE-2015-8844) VUL-0: CVE-2015-8844: kernel: incorrect restoration of machine specific registers from userspace
(CVE-2015-8844)
VUL-0: CVE-2015-8844: kernel: incorrect restoration of machine specific regi...
Status: RESOLVED FIXED
Classification: Novell Products
Product: SUSE Security Incidents
Classification: Novell Products
Component: Incidents
unspecified
PowerPC Other
: P3 - Medium : Normal
: ---
Assigned To: Security Team bot
Security Team bot
https://smash.suse.de/issue/167801/
CVSSv2:RedHat:CVE-2015-8844:4.4:(AV:L...
:
Depends on:
Blocks:
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Reported: 2016-04-14 10:12 UTC by Johannes Segitz
Modified: 2019-12-10 09:47 UTC (History)
6 users (show)

See Also:
Found By: Security Response Team
Services Priority:
Business Priority:
Blocker: ---
Marketing QA Status: ---
IT Deployment: ---


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Description Johannes Segitz 2016-04-14 10:12:03 UTC
https://git.kernel.org/cgit/linux/kernel/git/powerpc/linux.git/commit/?h=fixes&id=d2b9d2a5ad5ef04ff978c9923d19730cb05efd55

Currently we allow both the MSR T and S bits to be set by userspace on a signal return. Unfortunately this is a reserved configuration and will cause a TM Bad Thing exception if attempted

CVE-2015-8844.

Acknowledgements: Miroslav Vadkerti of Red Hat engineering team

References:
https://bugzilla.redhat.com/show_bug.cgi?id=1326540
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2015-8845
http://seclists.org/oss-sec/2016/q2/68
Comment 1 Swamp Workflow Management 2016-04-14 22:00:43 UTC
bugbot adjusting priority
Comment 2 Dinar Valeev 2016-05-02 11:27:51 UTC
Fix is in SLE12, SLE12-SP1, SLE12-SP2, Leap 42.1
Comment 3 Swamp Workflow Management 2016-08-19 12:14:57 UTC
SUSE-SU-2016:2105-1: An update that solves 21 vulnerabilities and has 55 fixes is now available.

Category: security (important)
Bug References: 947337,950998,951844,953048,954847,956491,957990,962742,963655,963762,965087,966245,968667,970114,970506,971770,972933,973378,973499,974165,974308,974620,975531,975533,975772,975788,977417,978401,978469,978822,979074,979213,979419,979485,979489,979521,979548,979681,979867,979879,979922,980348,980363,980371,980856,980883,981038,981143,981344,981597,982282,982354,982544,982698,983143,983213,983318,983721,983904,983977,984148,984456,984755,984764,985232,985978,986362,986365,986569,986572,986573,986811,988215,988498,988552,990058
CVE References: CVE-2014-9904,CVE-2015-7833,CVE-2015-8551,CVE-2015-8552,CVE-2015-8845,CVE-2016-0758,CVE-2016-1583,CVE-2016-2053,CVE-2016-3672,CVE-2016-4470,CVE-2016-4482,CVE-2016-4486,CVE-2016-4565,CVE-2016-4569,CVE-2016-4578,CVE-2016-4805,CVE-2016-4997,CVE-2016-4998,CVE-2016-5244,CVE-2016-5828,CVE-2016-5829
Sources used:
SUSE Linux Enterprise Workstation Extension 12-SP1 (src):    kernel-default-3.12.62-60.62.1
SUSE Linux Enterprise Software Development Kit 12-SP1 (src):    kernel-docs-3.12.62-60.62.3, kernel-obs-build-3.12.62-60.62.1
SUSE Linux Enterprise Server 12-SP1 (src):    kernel-default-3.12.62-60.62.1, kernel-source-3.12.62-60.62.1, kernel-syms-3.12.62-60.62.1, kernel-xen-3.12.62-60.62.1
SUSE Linux Enterprise Module for Public Cloud 12 (src):    kernel-ec2-3.12.62-60.62.1
SUSE Linux Enterprise Live Patching 12 (src):    kgraft-patch-SLE12-SP1_Update_7-1-4.2
SUSE Linux Enterprise Desktop 12-SP1 (src):    kernel-default-3.12.62-60.62.1, kernel-source-3.12.62-60.62.1, kernel-syms-3.12.62-60.62.1, kernel-xen-3.12.62-60.62.1
Comment 4 Swamp Workflow Management 2016-08-29 18:14:23 UTC
openSUSE-SU-2016:2184-1: An update that solves 21 vulnerabilities and has 49 fixes is now available.

Category: security (important)
Bug References: 947337,950998,951844,953048,954847,956491,957990,962742,963655,963762,965087,966245,968667,970114,970506,971770,972933,973378,973499,974165,974308,974620,975531,975533,975772,975788,977417,978401,978469,978822,979213,979419,979485,979489,979521,979548,979681,979867,979879,979922,980348,980363,980371,981038,981143,981344,982282,982354,982544,982698,983143,983213,983318,983721,983904,983977,984148,984456,984755,985232,985978,986362,986365,986569,986572,986811,988215,988498,988552,990058
CVE References: CVE-2014-9904,CVE-2015-7833,CVE-2015-8551,CVE-2015-8552,CVE-2015-8845,CVE-2016-0758,CVE-2016-1583,CVE-2016-2053,CVE-2016-3672,CVE-2016-4470,CVE-2016-4482,CVE-2016-4486,CVE-2016-4565,CVE-2016-4569,CVE-2016-4578,CVE-2016-4805,CVE-2016-4997,CVE-2016-4998,CVE-2016-5244,CVE-2016-5828,CVE-2016-5829
Sources used:
openSUSE 13.1 (src):    cloop-2.639-11.32.2, crash-7.0.2-2.32.7, hdjmod-1.28-16.32.2, ipset-6.21.1-2.36.2, iscsitarget-1.4.20.3-13.32.2, kernel-debug-3.12.62-52.1, kernel-default-3.12.62-52.1, kernel-desktop-3.12.62-52.1, kernel-docs-3.12.62-52.2, kernel-ec2-3.12.62-52.1, kernel-pae-3.12.62-52.1, kernel-source-3.12.62-52.1, kernel-syms-3.12.62-52.1, kernel-trace-3.12.62-52.1, kernel-vanilla-3.12.62-52.1, kernel-xen-3.12.62-52.1, ndiswrapper-1.58-33.2, openvswitch-1.11.0-0.39.3, pcfclock-0.44-258.33.2, vhba-kmp-20130607-2.32.2, virtualbox-4.2.36-2.64.4, xen-4.3.4_10-65.3, xtables-addons-2.3-2.31.2
Comment 5 Marcus Meissner 2017-03-01 13:25:19 UTC
released