Skip to content
OpenAdvisories
Unscored Public exploit CVE-2018-6323 EUVD-2018-18084GHSA-6j25-67w4-83v9

The elf_object_p function in elfcode.h in the Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.29.1, has…

Published Jan 26, 2018 · Updated Aug 5, 2024 · Assigned by mitre

Description

The elf_object_p function in elfcode.h in the Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.29.1, has an unsigned integer overflow because bfd_size_type multiplication is not used. A crafted ELF file allows remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact.

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

ReleasePackageFixed inAdvisory
Debian 14 binutils 2.30-3 —
Debian 13 binutils 2.30-3 —
Debian 12 binutils 2.30-3 —
ReleasePackageFixed inAdvisory
Ubuntu Pro 16.04 LTS binutils 2.26.1-1ubuntu1~16.04.8+esm1 USN-4336-2
Ubuntu Pro 14.04 LTS binutils 2.24-5ubuntu14.2+esm2 USN-4336-3
ReleasePackageFixed inAdvisory
SLES 15 SP1 binutils 2.32-7.5.1 SUSE-SU-2019:2779-1
SLES 15 binutils 2.31-6.3.1 SUSE-SU-2019:2780-1, SUSE-SU-2018:3170-1
SLES 12 SP3 binutils +2 2.31-9.26.1 SUSE-SU-2018:3207-1
SLES 12 SP2 binutils 2.31-9.26.1 SUSE-SU-2018:3207-2, SUSE-SU-2018:3207-1
SLES 12 SP1 binutils 2.31-9.26.1 SUSE-SU-2018:3207-1
Show 6 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
SLES 12 binutils 2.31-9.26.1 SUSE-SU-2018:3207-1
SLES for SAP 12 SP3 binutils 2.31-9.26.1 SUSE-SU-2018:3207-1
SLES for SAP 12 SP2 binutils 2.31-9.26.1 SUSE-SU-2018:3207-1
SLES for SAP 12 SP1 binutils 2.31-9.26.1 SUSE-SU-2018:3207-1
SUSE OpenStack Cloud 7 binutils 2.31-9.26.1 SUSE-SU-2018:3207-1
SUSE Enterprise Storage 4 binutils 2.31-9.26.1 SUSE-SU-2018:3207-1
ReleasePackageFixed inAdvisory
openSUSE Tumbleweed binutils 2.37-1.3 openSUSE-SU-2024:10651-1
openSUSE Leap 15.1 binutils +20 2.32-lp151.3.3.1 openSUSE-SU-2019:2432-1
openSUSE Leap 15.0 binutils 2.32-lp150.10.1 openSUSE-SU-2019:2415-1

Amazon Linux

ReleasePackageFixed inAdvisory
Amazon Linux 2 binutils +1 2.29.1-27.amzn2.0.1 ALAS2-2019-1185, ALAS2-2019-1138

Public exploits

Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.

Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.

Exploit-DB 1

Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.

Advisories 12

References