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Thursday, November 19, 2015

Ubuntu 14.04 Trusty Tahr receives Kernel Update with Minor Security Fixes


Ubuntu development team officially announces the availability of new updated Linux Kernel for Ubuntu Trusty Tahr. The newly updated Kernel includes fixes for several security issues. Earlier the kernel contains two major vulnerabilities which allows an unprivileged user to access administrative privileges.

According to official announcement made by Eric W. Biederman, a flaw is detected with mediation of mount flags in the Linux Kernel's user namespace subsystem. An unprivileged user could exploit this flaw to by-pass mount restrictions and potentially gain administrative privileges.

Another flaw was detected by Kenton Varda, according to which a flaw with read-only bind mounds when used with user namespaces. If this flaw is accessed by an unprivileged user then he can also exploit it to gain full write privileges to a mount which should be read-only. These security flaws will be corrected if you upgrade to linux-image 3.13.0-34.60 generic. You might also like to check out other latest Software News on our website.

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