SUSE: CVE-2018-12896: SUSE Linux Security Advisory
Description
An issue was discovered in the Linux kernel through 4.17.3. An Integer Overflow in kernel/time/posix-timers.c in the POSIX timer code is caused by the way the overrun accounting works. Depending on interval and expiry time values, the overrun can be larger than INT_MAX, but the accounting is int based. This basically makes the accounting values, which are visible to user space via timer_getoverrun(2) and siginfo::si_overrun, random. For example, a local user can cause a denial of service (signed integer overflow) via crafted mmap, futex, timer_create, and timer_settime system calls.
Solution(s)
- suse-upgrade-kernel-azure-base
- suse-upgrade-kernel-default
- suse-upgrade-kernel-default-extra
- suse-upgrade-kernel-default-man
- suse-upgrade-kernel-devel-azure
- suse-upgrade-kernel-docs
- suse-upgrade-kernel-docs-azure
- suse-upgrade-kernel-obs-build
- suse-upgrade-kernel-source-azure
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