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Fencer Vulns
high 7.8

CVE-2021-45078 json

stab_xcoff_builtin_type in stabs.c in GNU Binutils through 2.37 allows attackers to cause a denial of service (heap-based buffer overflow)…

published 2021-12-15 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-31871

cvss
7.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.4%
EPSS 1.4% chance of exploitation in 30 days, percentile 72%
public exploits
0
none known

Summary

stab_xcoff_builtin_type in stabs.c in GNU Binutils through 2.37 allows attackers to cause a denial of service (heap-based buffer overflow) or possibly have unspecified other impact, as demonstrated by an out-of-bounds write. NOTE: this issue exists because of an incorrect fix for CVE-2018-12699.

Patch / fix

  • binutils Debian 14, Debian 13, Debian 12 2.37.50.20220106-1

debian advisories DEBIAN-CVE-2021-45078

  • binutils Ubuntu 20.04 LTS 2.34-6ubuntu1.6
  • binutils Ubuntu Pro 16.04 LTS 2.26.1-1ubuntu1~16.04.8+esm3

ubuntu advisories UBUNTU-CVE-2021-45078

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 SLES for SAP 12 SP5, SLES for SAP 12 SP4, SLES 12 SP5 +6 more 2.39-9.50.1
  • cross-ppc-binutils SLE Software Development Kit 12 SP5 2.39-9.50.1
  • cross-spu-binutils SLE Software Development Kit 12 SP5 2.39-9.50.1
  • binutils SLES for SAP 15 SP2, SLES for SAP 15 SP1, SLES 15 SP2-LTSS +20 more 2.39-150100.7.40.1
  • cross-rx-binutils openSUSE Leap 15.4, openSUSE Leap 15.3 2.39-150100.7.40.1
  • cross-arm-binutils openSUSE Leap 15.4, openSUSE Leap 15.3 2.39-150100.7.40.1
  • cross-avr-binutils openSUSE Leap 15.4, openSUSE Leap 15.3 2.39-150100.7.40.1
  • cross-ppc-binutils openSUSE Leap 15.4, openSUSE Leap 15.3 2.39-150100.7.40.1

suse advisories SUSE-SU-2022:4277-1SUSE-SU-2022:4146-1

  • binutils openSUSE Tumbleweed 2.39-2.1

opensuse advisories openSUSE-SU-2024:12631-1

  • binutils CBL-Mariner 2.0 2.37-3

azure linux advisories AZL-7032

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

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-2021-45078 updated cvss 5.3

binutils: out-of-bounds write in stab_xcoff_builtin_type() in stabs.c

  • Red Hat Enterprise Linux 6 binutils Red Hat Enterprise Linux 7 binutils
    affected: workaround, no fix planned “Out of support scope”
  • Red Hat Enterprise Linux 8 binutils, gcc-toolset-9-binutils, gcc-toolset-10-binutils, gcc-toolset-11-binutils Red Hat Enterprise Linux 9 binutils, binutils-gold, mingw-binutils, mingw32-binutils, mingw64-binutils, mingw-binutils-generic
    affected: workaround, no fix planned “Will not fix”
  • Red Hat OpenShift AI (RHOAI) rhoai/odh-dashboard-rhel9
    under investigation
  • Red Hat Enterprise Linux 8 mingw-binutils, mingw32-binutils, mingw64-binutils, mingw-binutils-generic
    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

Exploit prediction

1.41% chance of exploitation in the next 30 days, higher than 72% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • sourceware.org https://sourceware.org/bugzilla/show_bug.cgi?id=28694 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 7.8 CVSS:3.1/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

References

Sources

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