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CVE-2015-2672

Date: May 2, 2016

The xsave/xrstor implementation in arch/x86/include/asm/xsave.h in the Linux kernel before 3.19.2 creates certain .altinstr_replacement pointers and consequently does not provide any protection against instruction faulting, which allows local users to cause a denial of service (panic) by triggering a fault, as demonstrated by an unaligned memory operand or a non-canonical address memory operand.

Language: C

Severity Score

Related Resources (7)

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=06c8173eb92bbfc03a0fe8bb64315857d0badd06
http://www.openwall.com/lists/oss-security/2015/03/22/1
https://github.com/torvalds/linux/commit/06c8173eb92bbfc03a0fe8bb64315857d0badd06
https://nvd.nist.gov/vuln/detail/CVE-2015-2672
https://bugzilla.redhat.com/show_bug.cgi?id=1204729
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.19.2
https://www.mend.io/vulnerability-database/CVE-2015-2672

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): LOW
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

CVSS v2

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

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