News
Vigil@nce: newsx, buffer overflow of read_article
August 2008 by Vigil@nce
SYNTHESIS
An attacker can use an overflow thanks to news article in order to
create a denial of service or to execute code.
Gravity: 2/4
Consequences: denial of service of client
Provenance: document
Means of attack: no proof of concept, no attack
Ability of attacker: expert (4/4)
Confidence: confirmed by the editor (5/5)
Diffusion of the vulnerable configuration: high (3/3)
Creation date: 31/07/2008
Identifier: VIGILANCE-VUL-7982
IMPACTED PRODUCTS
– Debian Linux [confidential versions]
– Fedora [confidential versions]
– Unix - plateform
DESCRIPTION
NNTP is a protocol used to transfer news messages. The software
"newsx" is a NNTP client.
An attacker can send a malicious message with a large number of
lines starting with a period.
This message during receiving, will generate an overflow in newsx
read_article() function.
An attacker can therefore create a denial of service or execute
code.
CHARACTERISTICS
Identifiers: 454483, BID-30231, CVE-2008-3252, DSA 1622-1,
FEDORA-2008-6319, FEDORA-2008-6321, VIGILANCE-VUL-7982
