UBUNTU-CVE-2015-2666
Advisory lineage Upstream: 1 Downstream: 2
Upstream
Downstream
Published: 25 Mar 2015, 00:00
Last modified:22 Apr 2026, 10:05
Vulnerability Summary
Overall Risk (default)
minimal
0/100 CVSS Score
No data
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected
Timeline
25 Mar 2015, 00:00
Published
Vulnerability first disclosed
22 Apr 2026, 10:05
Last Modified
Vulnerability information updated
Description
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.
Affected Systems
- ubuntu•linux
< 3.13.0-51.84
- ubuntu•linux-lts-utopic
< 3.16.0-36.48~14.04.1
References (7)
- https://ubuntu.com/security/CVE-2015-2666
- http://www.openwall.com/lists/oss-security/2015/03/18/7
- https://ubuntu.com/security/notices/USN-2587-1
- https://ubuntu.com/security/notices/USN-2588-1
- https://ubuntu.com/security/notices/USN-2589-1
- https://ubuntu.com/security/notices/USN-2590-1
- https://www.cve.org/CVERecord?id=CVE-2015-2666