Debian DSA-3696-1 : linux - security update (Dirty COW)
High Nessus Plugin ID 94146
Synopsis
The remote Debian host is missing a security-related update.
Description
Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service or information leaks.
- CVE-2015-8956 It was discovered that missing input sanitising in RFCOMM Bluetooth socket handling may result in denial of service or information leak.
- CVE-2016-5195 It was discovered that a race condition in the memory management code can be used for local privilege escalation.
- CVE-2016-7042 Ondrej Kozina discovered that incorrect buffer allocation in the proc_keys_show() function may result in local denial of service.
- CVE-2016-7425 Marco Grassi discovered a buffer overflow in the arcmsr SCSI driver which may result in local denial of service, or potentially, arbitrary code execution.
Additionally this update fixes a regression introduced in DSA-3616-1 causing iptables performance issues (cf. Debian Bug #831014).
Solution
Upgrade the linux packages.
For the stable distribution (jessie), these problems have been fixed in version 3.16.36-1+deb8u2.