Vigil@nce - libarchive: three vulnerabilities
December 2016 by Vigil@nce
This bulletin was written by Vigil@nce : https://vigilance.fr/offer
SYNTHESIS OF THE VULNERABILITY
An attacker can use several vulnerabilities of libarchive.
– Impacted products: Debian, Fedora, openSUSE Leap.
– Severity: 2/4.
– Creation date: 18/10/2016.
DESCRIPTION OF THE VULNERABILITY
Several vulnerabilities were announced in libarchive.
An attacker can generate a buffer overflow via
bsdtar_expand_char(), in order to trigger a denial of service, and
possibly to run code. [severity:2/4; CVE-2016-8687]
An attacker can force a read at an invalid address via bid_entry()
/ detect_form(), in order to trigger a denial of service, or to
obtain sensitive information. [severity:2/4; CVE-2016-8688]
An attacker can generate a buffer overflow via read_Header(), in
order to trigger a denial of service, and possibly to run code.
[severity:2/4; CVE-2016-8689]
ACCESS TO THE COMPLETE VIGIL@NCE BULLETIN
https://vigilance.fr/vulnerability/libarchive-three-vulnerabilities-20889