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Fencer Vulns
high 7.8

CVE-2018-6323 json

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 2018-01-26 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-18084

cvss
7.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
5.8%
EPSS 5.8% chance of exploitation in 30 days, percentile 93%
public exploits
1
Exploit-DB

Summary

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.

Patch / fix

  • binutils Debian 14, Debian 13, Debian 12 2.30-3

debian advisories DEBIAN-CVE-2018-6323

  • binutils Ubuntu Pro 14.04 LTS 2.24-5ubuntu14.2+esm2
  • binutils Ubuntu Pro 16.04 LTS 2.26.1-1ubuntu1~16.04.8+esm1

ubuntu advisories UBUNTU-CVE-2018-6323

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • binutils SLE Module for Package Hub 15, SLE Module for Development Tools 15, SLE Module for Basesystem 15 2.32-6.8.1
  • binutils SLE Module for Package Hub 15 SP1, SLE Module for Development Tools 15 SP1, SLE Module for Basesystem 15 SP1 2.32-7.5.1
  • binutils SLES 12 SP3, SLES 12 SP2-BCL, SLED 12 SP3 +9 more 2.31-9.26.1
  • cross-ppc-binutils SLE Software Development Kit 12 SP3 2.31-9.26.1
  • cross-spu-binutils SLE Software Development Kit 12 SP3 2.31-9.26.1
  • binutils SLE Module for Development Tools 15, SLE Module for Basesystem 15 2.31-6.3.1

suse advisories SUSE-SU-2019:2780-1SUSE-SU-2019:2779-1SUSE-SU-2018:3207-2SUSE-SU-2018:3207-1SUSE-SU-2018:3170-1

  • binutils openSUSE Tumbleweed 2.37-1.3
  • binutils openSUSE Leap 15.1 2.32-lp151.3.3.1
  • cross-rx-binutils openSUSE Leap 15.1 2.32-lp151.3.3.1
  • cross-arm-binutils openSUSE Leap 15.1 2.32-lp151.3.3.1
  • cross-avr-binutils openSUSE Leap 15.1 2.32-lp151.3.3.1
  • cross-ppc-binutils openSUSE Leap 15.1 2.32-lp151.3.3.1
  • cross-spu-binutils openSUSE Leap 15.1 2.32-lp151.3.3.1
  • cross-hppa-binutils openSUSE Leap 15.1 2.32-lp151.3.3.1

opensuse advisories openSUSE-SU-2024:10651-1openSUSE-SU-2019:2432-1openSUSE-SU-2019:2415-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2018-6323 updated cvss 3.3

binutils: Integer overflow in elf_object_p function in elfcode.h

  • Red Hat Enterprise Linux 5 binutils, binutils220 Red Hat Enterprise Linux 6 binutils Red Hat Enterprise Linux 7 binutils
    affected: no fix planned “Will not fix”
  • Red Hat Enterprise Linux 8 binutils
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Timeline

  1. Published
  2. First public exploit (EDB-44035)

Exploit prediction

5.83% chance of exploitation in the next 30 days, higher than 93% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-44035 GNU binutils 2.26.1 - Integer Overflow (PoC) dos, 2018-02-14
  • sourceware.org https://sourceware.org/bugzilla/show_bug.cgi?id=22746 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.0 7.8 CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD 2.0 6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P

Classification

Weakness
  • CWE-190 Integer Overflow or Wraparound

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.