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Fencer Vulns
high 7.5

CVE-2021-46174 json

Heap-based Buffer Overflow in function bfd_getl32 in Binutils objdump 3.37.

published 2023-08-22 3 y ago modified 2026-06-17 4 mo ago also EUVD-2021-32874

cvss
7.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.8%
EPSS 0.8% chance of exploitation in 30 days, percentile 57%
public exploits
0
none known

Summary

Heap-based Buffer Overflow in function bfd_getl32 in Binutils objdump 3.37.

Patch / fix

  • gnu binutils 2.38
  • binutils Debian 14, Debian 13, Debian 12 2.37.90.20220207-1

debian advisories DEBIAN-CVE-2021-46174

  • binutils Ubuntu 20.04 LTS 2.34-6ubuntu1.7
  • binutils Ubuntu Pro 14.04 LTS 2.24-5ubuntu14.2+esm3
  • binutils Ubuntu Pro 16.04 LTS 2.26.1-1ubuntu1~16.04.8+esm7
  • binutils Ubuntu Pro 18.04 LTS 2.30-21ubuntu1~18.04.9+esm1

ubuntu advisories UBUNTU-CVE-2021-46174

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

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-2021-46174 updated

binutils: heap-based buffer overflow in bfd_getl32() in libbfd.c via objdump

  • Red Hat Enterprise Linux 6 binutils Red Hat Enterprise Linux 7 gdb, binutils, gdb-gdbserver Red Hat Enterprise Linux 8 gdb, binutils, gdb-headless, gdb-gdbserver, mingw-binutils, mingw32-binutils, +11 more Red Hat Enterprise Linux 9 gdb, binutils, gdb-minimal, gdb-headless, binutils-gold, gdb-gdbserver, +10 more
    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

CISA SSVC

Exploitation
Proof of concept is public
Automatable
yes
Technical impact
partial
Assessed
2 y ago

Exploit prediction

0.82% chance of exploitation in the next 30 days, higher than 57% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • sourceware.org https://sourceware.org/bugzilla/show_bug.cgi?id=28753 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

  • binutils objdump

Classification

Weakness

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.