HTTP: Linux Kernel KeyRing Object Exploit Attempt
This signature detects attempts to exploit a known vulnerability in the Linux Kernel KeyRing Object. A successful attack can lead to a buffer overflow and arbitrary remote code execution within the context of the Kernel.
Extended Description
The join_session_keyring function in security/keys/process_keys.c in the Linux kernel before 4.4.1 mishandles object references in a certain error case, which allows local users to gain privileges or cause a denial of service (integer overflow and use-after-free) via crafted keyctl commands.
Affected Products
Linux linux_kernel
References
CVE: CVE-2016-0728
Short Name
HTTP:STC:DL:KER-RINGOBJ-PRIV
Severity
Major
Recommended
False
Recommended Action
Drop
Category
HTTP
Keywords
Attempt CVE-2016-0728 Exploit Kernel KeyRing Linux Object
Release Date
09/27/2016
Supported Platforms
srx-branch-12.3
srx-19.3
srx-branch-19.3
vsrx3bsd-19.2
srx-branch-19.4
vsrx-19.4
mx-12.3
mx-19.4
vmx-19.4
mx-19.3
vsrx3bsd-19.4
srx-19.4
vsrx-12.3
vmx-19.3
vsrx-19.2
srx-12.3
Sigpack Version
3590
False Positive
Unknown
Vendors
Linux
Hp
Debian
Canonical
CVSS Score
7.2