Vigil@nce: Linux kernel, denial of service under S/390
October 2008 by Vigil@nce
SYNTHESIS
A local attacker can use ptrace() under S/390 in order to stop the
system.
Gravity: 1/4
Consequences: denial of service of computer
Provenance: user shell
Means of attack: 1 attack
Ability of attacker: technician (2/4)
Confidence: confirmed by the editor (5/5)
Diffusion of the vulnerable configuration: medium (2/3)
Creation date: 09/10/2008
IMPACTED PRODUCTS
– Linux kernel
DESCRIPTION
The Linux kernel can be installed on ESA/390 systems (Enterprise
Systems Architecture/390, s390, s390x), which uses memory
addresses on 31 bits.
The s390 implementation of the ptrace() system call incorrectly
handles the padding of memory addresses, which stops the kernel.
A local attacker can thus stop the system.
CHARACTERISTICS
Identifiers: 438147, CVE-2008-1514, VIGILANCE-VUL-8157