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Fencer Vulns
medium 5.5

CVE-2022-33068 json

An integer overflow in the component hb-ot-shape-fallback.cc of Harfbuzz v4.3.0 allows attackers to cause a Denial of Service (DoS) via uns…

published 2022-06-22 4 y ago modified 2026-06-17 4 mo ago also EUVD-2022-36125

cvss
5.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.2%
EPSS 1.2% chance of exploitation in 30 days, percentile 68%
public exploits
0
none known

Summary

An integer overflow in the component hb-ot-shape-fallback.cc of Harfbuzz v4.3.0 allows attackers to cause a Denial of Service (DoS) via unspecified vectors.

Patch / fix

  • harfbuzz Debian 14, Debian 13, Debian 12 5.2.0-2

debian advisories DEBIAN-CVE-2022-33068

  • harfbuzz Ubuntu 20.04 LTS 2.6.4-1ubuntu4.2
  • harfbuzz Ubuntu 22.04 LTS 2.7.4-1ubuntu3.1

ubuntu advisories UBUNTU-CVE-2022-33068

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

  • java-11-openjdk RHEL 9 1:11.0.17.0.8-2.el9_0
  • java-11-openjdk-src RHEL 9 1:11.0.17.0.8-2.el9_0
  • java-11-openjdk-demo RHEL 9 1:11.0.17.0.8-2.el9_0
  • java-11-openjdk-jmods RHEL 9 1:11.0.17.0.8-2.el9_0
  • java-11-openjdk-javadoc RHEL 9 1:11.0.17.0.8-2.el9_0
  • java-11-openjdk-headless RHEL 9 1:11.0.17.0.8-2.el9_0
  • java-11-openjdk-fastdebug RHEL 9 1:11.0.17.0.8-2.el9_0
  • java-11-openjdk-slowdebug RHEL 9 1:11.0.17.0.8-2.el9_0

red hat advisories RHSA-2022:7013RHSA-2022:6999RHSA-2022:7012RHSA-2022:7000RHSA-2022:8384

  • harfbuzz SLE Module for Basesystem 15 SP4, openSUSE Leap 15.4 3.4.0-150400.3.3.1
  • harfbuzz SLES for SAP 15 SP2, SLES 15 SP2-LTSS, SLES 15 SP2-BCL +9 more 2.6.4-150200.3.3.1

suse advisories SUSE-SU-2022:2664-1SUSE-SU-2022:2663-1

  • harfbuzz openSUSE Tumbleweed 4.4.1-1.1
  • harfbuzz openSUSE Leap Micro 5.2 2.6.4-150200.3.3.1

opensuse advisories openSUSE-SU-2024:12168-1openSUSE-SU-2022:2663-1

  • harfbuzz AlmaLinux 9 2.7.4-8.el9
  • harfbuzz-icu AlmaLinux 9 2.7.4-8.el9

almalinux advisories ALSA-2022:8384

  • harfbuzz Rocky Linux 9 2.7.4-8.el9

rocky linux advisories RLSA-2022:8384

  • harfbuzz Alpine 3.24, Alpine 3.23, Alpine 3.22 +5 more 4.4.1-r0

alpine advisories ALPINE-CVE-2022-33068

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • harfbuzz Arch Linux 4.4.0-1

arch linux advisories AVG-2793

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-2022-33068 updated cvss 5.5

harfbuzz: integer overflow in the component hb-ot-shape-fallback.cc

  • Red Hat CodeReady Linux Builder (v. 9) java-17-openjdk-fastdebug 17.0.5.0.8-2.el9_0, java-17-openjdk-slowdebug 17.0.5.0.8-2.el9_0, java-11-openjdk-fastdebug 11.0.17.0.8-2.el9_0, java-11-openjdk-slowdebug 11.0.17.0.8-2.el9_0, java-17-openjdk-src-fastdebug 17.0.5.0.8-2.el9_0, java-17-openjdk-src-slowdebug 17.0.5.0.8-2.el9_0, +22 more
    fixed: vendor fix RHSA-2022:7013
  • Red Hat Enterprise Linux AppStream (v. 8) java-17-openjdk 17.0.5.0.8-2.el8_6, java-11-openjdk 11.0.17.0.8-2.el8_6, java-17-openjdk-src 17.0.5.0.8-2.el8_6, java-11-openjdk-src 11.0.17.0.8-2.el8_6, java-17-openjdk-demo 17.0.5.0.8-2.el8_6, java-11-openjdk-demo 11.0.17.0.8-2.el8_6, +10 more
    fixed: vendor fix RHSA-2022:7012
  • Red Hat Enterprise Linux AppStream (v. 9) harfbuzz 2.7.4-8.el9, harfbuzz-icu 2.7.4-8.el9, java-17-openjdk 17.0.5.0.8-2.el9_0, java-11-openjdk 11.0.17.0.8-2.el9_0, java-17-openjdk-src 17.0.5.0.8-2.el9_0, java-11-openjdk-src 11.0.17.0.8-2.el9_0, +12 more
    fixed: vendor fix RHSA-2022:7013
  • Red Hat Enterprise Linux BaseOS (v. 9) harfbuzz 2.7.4-8.el9
    fixed: vendor fix RHSA-2022:8384
  • Red Hat Enterprise Linux CRB (v. 8) java-17-openjdk-fastdebug 17.0.5.0.8-2.el8_6, java-17-openjdk-slowdebug 17.0.5.0.8-2.el8_6, java-11-openjdk-fastdebug 11.0.17.0.8-2.el8_6, java-11-openjdk-slowdebug 11.0.17.0.8-2.el8_6, java-17-openjdk-src-fastdebug 17.0.5.0.8-2.el8_6, java-17-openjdk-src-slowdebug 17.0.5.0.8-2.el8_6, +22 more
    fixed: vendor fix RHSA-2022:7012
  • Red Hat Enterprise Linux 7 harfbuzz, harfbuzz-icu Red Hat Enterprise Linux 8 harfbuzz, harfbuzz-icu, mingw32-harfbuzz, mingw64-harfbuzz
    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

1.19% chance of exploitation in the next 30 days, higher than 68% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/harfbuzz/harfbuzz/issues/3557 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:N/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.