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7 vulnerabilities by harfbuzz_project
CVE-2026-22693 (GCVE-0-2026-22693)
Vulnerability from cvelistv5 – Published: 2026-01-10 05:53 – Updated: 2026-01-12 16:47
VLAI
Title
Null Pointer Dereference in SubtableUnicodesCache::create leading to DoS
Summary
HarfBuzz is a text shaping engine. Prior to version 12.3.0, a null pointer dereference vulnerability exists in the SubtableUnicodesCache::create function located in src/hb-ot-cmap-table.hh. The function fails to check if hb_malloc returns NULL before using placement new to construct an object at the returned pointer address. When hb_malloc fails to allocate memory (which can occur in low-memory conditions or when using custom allocators that simulate allocation failures), it returns NULL. The code then attempts to call the constructor on this null pointer using placement new syntax, resulting in undefined behavior and a Segmentation Fault. This issue has been patched in version 12.3.0.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-476 - NULL Pointer Dereference
Assigner
References
4 references
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CVE-2023-25193 (GCVE-0-2023-25193)
Vulnerability from cvelistv5 – Published: 2023-02-04 00:00 – Updated: 2025-03-25 20:23
VLAI
Summary
hb-ot-layout-gsubgpos.hh in HarfBuzz through 6.0.0 allows attackers to trigger O(n^2) growth via consecutive marks during the process of looking back for base glyphs when attaching marks.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- n/a
- CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
6 references
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CVE-2022-33068 (GCVE-0-2022-33068)
Vulnerability from cvelistv5 – Published: 2022-06-22 13:24 – Updated: 2024-08-03 08:01
VLAI
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.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://github.com/harfbuzz/harfbuzz/issues/3557 | x_refsource_MISC |
| https://github.com/harfbuzz/harfbuzz/commit/62e80… | x_refsource_MISC |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
| https://security.gentoo.org/glsa/202209-11 | vendor-advisoryx_refsource_GENTOO |
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CVE-2021-45931 (GCVE-0-2021-45931)
Vulnerability from cvelistv5 – Published: 2021-12-31 23:58 – Updated: 2024-08-04 04:54
VLAI
Summary
HarfBuzz 2.9.0 has an out-of-bounds write in hb_bit_set_invertible_t::set (called from hb_sparseset_t<hb_bit_set_invertible_t>::set and hb_set_copy).
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
7 references
| URL | Tags |
|---|---|
| https://github.com/google/oss-fuzz-vulns/blob/mai… | x_refsource_MISC |
| https://bugs.chromium.org/p/oss-fuzz/issues/detai… | x_refsource_MISC |
| https://github.com/harfbuzz/harfbuzz/commit/d3e09… | x_refsource_MISC |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
| https://security.gentoo.org/glsa/202209-11 | vendor-advisoryx_refsource_GENTOO |
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CVE-2015-9274 (GCVE-0-2015-9274)
Vulnerability from cvelistv5 – Published: 2018-11-15 05:00 – Updated: 2024-08-06 08:43
VLAI
Summary
HarfBuzz before 1.0.4 allows remote attackers to cause a denial of service (invalid read of two bytes and application crash) because of GPOS and GSUB table mishandling, related to hb-ot-layout-gpos-table.hh, hb-ot-layout-gsub-table.hh, and hb-ot-layout-gsubgpos-private.hh.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/harfbuzz/harfbuzz/commit/c9179… | x_refsource_MISC |
Date Public
2018-11-14 00:00
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CVE-2015-8947 (GCVE-0-2015-8947)
Vulnerability from cvelistv5 – Published: 2016-07-19 10:00 – Updated: 2024-08-06 08:36
VLAI
Summary
hb-ot-layout-gpos-table.hh in HarfBuzz before 1.0.5 allows remote attackers to cause a denial of service (buffer over-read) or possibly have unspecified other impact via crafted data, a different vulnerability than CVE-2016-2052.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
8 references
| URL | Tags |
|---|---|
| http://rhn.redhat.com/errata/RHSA-2016-0072.html | vendor-advisoryx_refsource_REDHAT |
| https://github.com/behdad/harfbuzz/commit/f966649… | x_refsource_CONFIRM |
| https://security.gentoo.org/glsa/201701-76 | vendor-advisoryx_refsource_GENTOO |
| http://www.securityfocus.com/bid/92039 | vdb-entryx_refsource_BID |
| http://www.ubuntu.com/usn/USN-3067-1 | vendor-advisoryx_refsource_UBUNTU |
| http://lists.opensuse.org/opensuse-updates/2016-0… | vendor-advisoryx_refsource_SUSE |
| https://github.com/behdad/harfbuzz/issues/139#iss… | x_refsource_CONFIRM |
| https://lists.debian.org/debian-lts-announce/2019… | mailing-listx_refsource_MLIST |
Date Public
2015-10-13 00:00
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CVE-2016-2052 (GCVE-0-2016-2052)
Vulnerability from cvelistv5 – Published: 2016-01-25 11:00 – Updated: 2024-08-05 23:17
VLAI
Summary
Multiple unspecified vulnerabilities in HarfBuzz before 1.0.6, as used in Google Chrome before 48.0.2564.82, allow attackers to cause a denial of service or possibly have other impact via crafted data, as demonstrated by a buffer over-read resulting from an inverted length check in hb-ot-font.cc, a different issue than CVE-2015-8947.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
12 references
| URL | Tags |
|---|---|
| https://code.google.com/p/chromium/issues/detail?… | x_refsource_CONFIRM |
| https://code.google.com/p/chromium/issues/detail?… | x_refsource_CONFIRM |
| http://rhn.redhat.com/errata/RHSA-2016-0072.html | vendor-advisoryx_refsource_REDHAT |
| https://security.gentoo.org/glsa/201701-76 | vendor-advisoryx_refsource_GENTOO |
| http://www.ubuntu.com/usn/USN-2877-1 | vendor-advisoryx_refsource_UBUNTU |
| http://googlechromereleases.blogspot.com/2016/01/… | x_refsource_CONFIRM |
| http://www.securitytracker.com/id/1034801 | vdb-entryx_refsource_SECTRACK |
| http://www.securityfocus.com/bid/81812 | vdb-entryx_refsource_BID |
| https://github.com/behdad/harfbuzz/issues/139#iss… | x_refsource_CONFIRM |
| http://www.ubuntu.com/usn/USN-3067-1 | vendor-advisoryx_refsource_UBUNTU |
| https://github.com/behdad/harfbuzz/commit/63ef0b4… | x_refsource_CONFIRM |
| http://lists.opensuse.org/opensuse-updates/2016-0… | vendor-advisoryx_refsource_SUSE |
Date Public
2016-01-20 00:00
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