Red Hat Security Advisory 2015-0864-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. A flaw was found in the way seunshare, a utility for running executables under a different security context, used the capng_lock functionality of the libcap-ng library. The subsequent invocation of suid root binaries that relied on the fact that the setuid() system call, among others, also sets the saved set-user-ID when dropping the binaries' process privileges, could allow a local, unprivileged user to potentially escalate their privileges on the system. Note: the fix for this issue is the kernel part of the overall fix, and introduces the PR_SET_NO_NEW_PRIVS functionality and the related SELinux exec transitions support.
24e7a0f27ae4cfb8cbaeef49a7e9203298bb317a8eb324c5b8f16adb18278828Mandriva Linux Security Advisory 2015-156 - capng_lock() in libcap-ng before 0.7.4 sets securebits in an attempt to prevent regaining capabilities using setuid-root programs. This allows a user to run setuid programs, such as seunshare from policycoreutils, as uid 0 but without capabilities, which is potentially dangerous.
9187dfcabef78d898af50d16246d6437951c8b7149a016e74ca228a3510a0e20Gentoo Linux Security Advisory 201412-44 - A vulnerability in policycoreutils could lead to local privilege escalation. Versions prior to 2.2.5-r4 are affected.
2b706a9b7343eb709884ad81f2c80a0c6680592d90a399a8cb2af12c127d2d2dMandriva Linux Security Advisory 2014-117 - capng_lock() in libcap-ng before 0.7.4 sets securebits in an attempt to prevent regaining capabilities using setuid-root programs. This allows a user to run setuid programs, such as seunshare from policycoreutils, as uid 0 but without capabilities, which is potentially dangerous.
dd90a837ca9afc51e9750e86e3f853a4e6d38d4a7f12ca8f3f64d35e2418f312
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