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USN-3531-2 Not scored

intel-microcode regression

USN-3531-1 updated Intel microcode to the 20180108 release. Regressions were discovered in the microcode updates which could cause system instability on certain hardware platforms. At the request of Intel, we have reverted to the previous packaged microcode version, the 20170707 release. Original advisory details: It was discovered that microprocessors utilizing speculative execution and branch prediction may allow unauthorized memory reads via sidechannel attacks. This flaw is known as Spectre. A local attacker could use this to expose sensitive information, including kernel memory. (CVE-2017-5715) This update provides the microcode updates required for the corresponding Linux kernel updates.

Exploit probability Not scored
Published January 22, 2018
Required by Not available
Last source change February 10, 2026

02 / AFFECTED SOFTWARE

Affected packages

Ubuntu:14.04:LTS intel-microcode

6 explicit affected versions

Ubuntu:16.04:LTS intel-microcode

4 explicit affected versions

03 / CONNECTIONS

Connected vulnerabilities

04 / EVIDENCE

Source records

Open Source Vulnerabilities USN-3531-2

USN-3531-1 updated Intel microcode to the 20180108 release. Regressions were discovered in the microcode updates which could cause system instability on certain hardware platforms. At the request of Intel, we have reverted to the previous packaged microcode version, the 20170707 release. Original advisory details: It was discovered that microprocessors utilizing speculative execution and branch prediction may allow unauthorized memory reads via sidechannel attacks. This flaw is known as Spectre. A local attacker could use this to expose sensitive information, including kernel memory. (CVE-2017-5715) This update provides the microcode updates required for the corresponding Linux kernel updates.

View original source

05 / REFERENCES

Further evidence