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CVE-2015-8844

Date: April 27, 2016

The signal implementation in the Linux kernel before 4.3.5 on powerpc platforms does not check for an MSR with both the S and T bits set, which allows local users to cause a denial of service (TM Bad Thing exception and panic) via a crafted application.

Language: C

Severity Score

Related Resources (13)

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d2b9d2a5ad5ef04ff978c9923d19730cb05efd55
http://www.securitytracker.com/id/1035594
https://nvd.nist.gov/vuln/detail/CVE-2015-8844
http://rhn.redhat.com/errata/RHSA-2016-2574.html
https://github.com/torvalds/linux/commit/d2b9d2a5ad5ef04ff978c9923d19730cb05efd55
https://bugzilla.redhat.com/show_bug.cgi?id=1326540
https://access.redhat.com/security/cve/CVE-2015-8844
http://www.openwall.com/lists/oss-security/2016/04/13/1
https://security-tracker.debian.org/tracker/CVE-2015-8844
http://rhn.redhat.com/errata/RHSA-2016-2584.html
https://people.canonical.com/~ubuntu-security/cve/CVE-2015-8844
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.3.5
https://www.mend.io/vulnerability-database/CVE-2015-8844

Severity Score

Weakness Type (CWE)

Improper Input Validation

CWE-20

CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): REQUIRED
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): LOCAL
Access Complexity (AC): MEDIUM
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): COMPLETE
Additional information:

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