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CVE-2018-18309

Published: 15 October 2018

An issue was discovered in the Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.31. An invalid memory address dereference was discovered in read_reloc in reloc.c. The vulnerability causes a segmentation fault and application crash, which leads to denial of service, as demonstrated by objdump, because of missing _bfd_clear_contents bounds checking.

Priority

Low

Cvss 3 Severity Score

5.5

Score breakdown

Status

Package Release Status
binutils
Launchpad, Ubuntu, Debian
bionic
Released (2.30-21ubuntu1~18.04.3)
cosmic Ignored
(end of life)
disco Not vulnerable
(2.32-7ubuntu4)
eoan Not vulnerable
(2.32-8ubuntu1)
focal Not vulnerable
(2.32-8ubuntu1)
trusty Needed

upstream Needs triage

xenial
Released (2.26.1-1ubuntu1~16.04.8+esm1)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
impish Not vulnerable
(2.32-8ubuntu1)
groovy Not vulnerable
(2.32-8ubuntu1)
jammy Not vulnerable
(2.32-8ubuntu1)
hirsute Not vulnerable
(2.32-8ubuntu1)
kinetic Not vulnerable
(2.32-8ubuntu1)
lunar Not vulnerable
(2.32-8ubuntu1)
mantic Not vulnerable
(2.32-8ubuntu1)
Patches:
upstream: https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=0930cb3021b8078b34cf216e79eb8608d017864f

Severity score breakdown

Parameter Value
Base score 5.5
Attack vector Local
Attack complexity Low
Privileges required None
User interaction Required
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H