CVE-2015-2672

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Summary

CVECVE-2015-2672
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2016-05-02 10:59:10 UTC
Updated2026-05-06 22:30:45 UTC
DescriptionThe 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.

Risk And Classification

Primary CVSS: v3.0 5.5 MEDIUM from [email protected]

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Problem Types: CWE-20 | n/a

VersionSourceTypeScoreSeverityVector
3.0[email protected]Primary5.5MEDIUMCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
2.0[email protected]Primary4.9AV:L/AC:L/Au:N/C:N/I:N/A:C

CVSS v3.0 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS v2.0 Breakdown

Access Vector
Local
Access Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Complete

AV:L/AC:L/Au:N/C:N/I:N/A:C

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
oss-security - Re: CVE Request: Linux kernel unprivileged denial-of-service due to mis-protected xsave/xrstor instructions. af854a3a-2127-422b-91ae-364da2661108 www.openwall.com
www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.19.2 af854a3a-2127-422b-91ae-364da2661108 www.kernel.org
x86/fpu/xsaves: Fix improper uses of __ex_table · torvalds/linux@06c8173 · GitHub af854a3a-2127-422b-91ae-364da2661108 github.com Vendor Advisory
1204729 – (CVE-2015-2672) CVE-2015-2672 kernel: unprivileged denial-of-service due to mis-protected xsave/xrstor instructions af854a3a-2127-422b-91ae-364da2661108 bugzilla.redhat.com
kernel/git/torvalds/linux.git - Linux kernel source tree af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Vendor Advisory
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