Vigil@nce - libbfd: out-of-bounds memory reading via _bfd_stab_section_find_nearest_line
December 2019 by Vigil@nce
This bulletin was written by Vigil@nce : https://vigilance.fr/?langue=2
SYNTHESIS OF THE VULNERABILITY
Impacted products: openSUSE Leap, SUSE Linux Enterprise Desktop,
SLES.
Severity: 2/4.
Consequences: data reading, denial of service on service, denial
of service on client.
Provenance: document.
Confidence: confirmed by the editor (5/5).
Creation date: 15/10/2019.
DESCRIPTION OF THE VULNERABILITY
An attacker can force a read at an invalid address via
_bfd_stab_section_find_nearest_line() of libbfd, in order to
trigger a denial of service, or to obtain sensitive information.
ACCESS TO THE FULL VIGIL@NCE BULLETIN