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Fencer Intel
high 8.8

CVE-2020-19726 json

An issue was discovered in binutils libbfd.c 2.36 relating to the auxiliary symbol data allows attackers to read or write to system memory…

published 3y ago modified 4mo ago also EUVD-2020-11624

cvss
8.8
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 55%
public exploits
0
none known

Summary

An issue was discovered in binutils libbfd.c 2.36 relating to the auxiliary symbol data allows attackers to read or write to system memory or cause a denial of service.

Patch / fix

  • binutils Debian 14, Debian 13, Debian 12 2.37-3

debian advisories DEBIAN-CVE-2020-19726

  • 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-2020-19726

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 15 SP3, SLES for SAP 15 SP2, SLES for SAP 15 SP1 +18 more 2.41-150100.7.46.1
  • cross-rx-binutils openSUSE Leap 15.5 2.41-150100.7.46.1
  • cross-arm-binutils openSUSE Leap 15.5 2.41-150100.7.46.1
  • cross-avr-binutils openSUSE Leap 15.5 2.41-150100.7.46.1
  • cross-ppc-binutils openSUSE Leap 15.5 2.41-150100.7.46.1
  • cross-spu-binutils openSUSE Leap 15.5 2.41-150100.7.46.1
  • cross-hppa-binutils openSUSE Leap 15.5 2.41-150100.7.46.1
  • cross-i386-binutils openSUSE Leap 15.5 2.41-150100.7.46.1

suse advisories SUSE-SU-2023:3825-1SUSE-SU-2023:3695-1

  • binutils openSUSE Tumbleweed 2.41-1.2

opensuse advisories openSUSE-SU-2024:13411-1

Is CVE-2020-19726 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

Check with Fencer

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-2020-19726 updated cvss 8.8

binutils: heap-based buffer overflow in bfd_getl32() in bfd/libbfd.c

  • 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
no
Technical impact
total
Assessed
2y ago

Exploit prediction

0.75% chance of exploitation in the next 30 days, higher than 55% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • sourceware.org https://sourceware.org/bugzilla/show_bug.cgi?id=26240 referenced PoC, tagged "exploit" by a source, unverified
  • sourceware.org https://sourceware.org/bugzilla/show_bug.cgi?id=26241 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Classification

Weakness
  • CWE-400 Uncontrolled Resource Consumption

References

Sources

Fencer Intel 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.