Vulnerability DatabaseCVE-2015-2666
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CVE-2015-2666
Published:May 27, 2015
Updated:May 17, 2026
Stack-based buffer overflow in the get_matching_model_microcode function in arch/x86/kernel/cpu/microcode/intel_early.c in the Linux kernel before 4.0 allows context-dependent attackers to gain privileges by constructing a crafted microcode header and leveraging root privileges for write access to the initrd.
Related Resources (9)
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=f84598bd7c851f8b0bf8cd0d7c3be0d73c432ff4
https://people.canonical.com/~ubuntu-security/cve/CVE-2015-2666
http://www.openwall.com/lists/oss-security/2015/03/20/18
https://access.redhat.com/security/cve/CVE-2015-2666
https://bugzilla.redhat.com/show_bug.cgi?id=1204722
http://rhn.redhat.com/errata/RHSA-2015-1534.html
http://www.securitytracker.com/id/1032414
http://lists.fedoraproject.org/pipermail/package-announce/2015-March/153329.html
https://github.com/torvalds/linux/commit/f84598bd7c851f8b0bf8cd0d7c3be0d73c432ff4
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CVSS v3
Base Score:
7.4
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
CVSS v2
Base Score:
6.9
Access Vector
LOCAL
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Weakness Type (CWE)
Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE-119
EPSS
Base Score:
0.10