[SECURITY] [DSA 4279-1] linux security update

ID DEBIAN:DSA-4279-1:66DD9
Type debian
Reporter Debian
Modified 2018-08-20T11:44:56


Debian Security Advisory DSA-4279-1 security@debian.org https://www.debian.org/security/ Salvatore Bonaccorso August 20, 2018 https://www.debian.org/security/faq

Package : linux CVE ID : CVE-2018-3620 CVE-2018-3646

Multiple researchers have discovered a vulnerability in the way the Intel processor designs have implemented speculative execution of instructions in combination with handling of page-faults. This flaw could allow an attacker controlling an unprivileged process to read memory from arbitrary (non-user controlled) addresses, including from the kernel and all other processes running on the system or cross guest/host boundaries to read host memory.

To fully resolve these vulnerabilities it is also necessary to install updated CPU microcode (only available in Debian non-free). Common server class CPUs are covered in the update released as DSA 4273-1.

For the stable distribution (stretch), these problems have been fixed in version 4.9.110-3+deb9u3.

We recommend that you upgrade your linux packages.

For the detailed security status of linux please refer to its security tracker page at: https://security-tracker.debian.org/tracker/linux

Further information about Debian Security Advisories, how to apply these updates to your system and frequently asked questions can be found at: https://www.debian.org/security/

Mailing list: debian-security-announce@lists.debian.org