SUSE-SU-2026:20726-1
Vulnerability from csaf_suse - Published: 2026-03-16 09:25 - Updated: 2026-09-20 18:36Summary
Security update for freetype2
Severity
Moderate
Notes
Title of the patch: Security update for freetype2
Description of the patch: This update for freetype2 fixes the following issue:
Update to freetype2 2.14.2:
- CVE-2026-23865: Integer overflow in the tt_var_load_item_variation_store function (bsc#1259118).
Changelog:
* Several changes related to LCD filtering are implemented to
achieve better performance and encourage sound practices.
* Instead of blanket LCD filtering over the entire bitmap, it
is now applied only to non-zero spans using direct rendering.
This speeds up the ClearType-like rendering by more than 40%
at sizes above 32 ppem.
* Setting the filter weights with FT_Face_Properties is no
longer supported. The default and light filters are optimized
to work with any face.
* The legacy libXft LCD filter algorithm is no longer provided.
* A bunch of potential security problems have been found
(bsc#1259118, CVE-2026-23865). All users should update.
* The italic angle in `PS_FontInfo` is now stored as a fixed-point
value in degrees for all Type 1 fonts and their derivatives,
consistent with CFF fonts and common practices. The broken
underline position and thickness values are fixed for CFF fonts.
* The `x` field in the `FT_Span` structure is now unsigned.
* Demo program `ftgrid` got an option `-m` to select a start
character to display.
* Similarly, demo program `ftmulti` got an option `-m` to select a
text string for rendering.
* Option `-d` in the demo program `ttdebug` is now called `-a`,
expecting a comma-separated list of axis values. The user
interface is also slightly improved.
* The `ftinspect` demo program can now be compiled with Qt6, too.
* The auto-hinter got new abilities. It can now better separate
diacritic glyphs from base glyphs at small sizes by
artificially moving diacritics up (or down) if necessary
* Tilde accent glyphs get vertically stretched at small sizes so
that they don't degenerate to horizontal lines.
* Diacritics directly attached to a base glyph (like the ogonek in
character 'ę') no longer distort the shape of the base glyph
* The TrueType instruction interpreter was optimized to
produce a 15% gain in the glyph loading speed.
* Handling of Variation Fonts is now considerably faster
* TrueType and CFF glyph loading speed has been improved by 5-10%
on modern 64-bit platforms as a result of better handling of
fixed-point multiplication.
* The BDF driver now loads fonts 75% faster.
Patchnames: SUSE-SLE-Micro-6.0-619,SUSE-SLE-Micro-6.1-442
Terms of use: CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).
5.3 (Medium)
Affected products
Recommended
7 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: SUSE Linux Micro 6.0:busybox-0:1.36.1-3.1.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Micro 6.0:busybox-0:1.36.1-3.1.s390x | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Micro 6.0:busybox-0:1.36.1-3.1.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Micro 6.1:libfreetype6-0:2.14.2-slfo.1.1_1.1.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Micro 6.1:libfreetype6-0:2.14.2-slfo.1.1_1.1.ppc64le | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Micro 6.1:libfreetype6-0:2.14.2-slfo.1.1_1.1.s390x | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Micro 6.1:libfreetype6-0:2.14.2-slfo.1.1_1.1.x86_64 | — |
Vendor Fix
|
Threats
Impact
moderate
References
9 references
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"text": "This update for freetype2 fixes the following issue:\n\nUpdate to freetype2 2.14.2:\n\n- CVE-2026-23865: Integer overflow in the tt_var_load_item_variation_store function (bsc#1259118).\n\nChangelog:\n \n * Several changes related to LCD filtering are implemented to\n achieve better performance and encourage sound practices.\n * Instead of blanket LCD filtering over the entire bitmap, it\n is now applied only to non-zero spans using direct rendering.\n This speeds up the ClearType-like rendering by more than 40%\n at sizes above 32 ppem.\n * Setting the filter weights with FT_Face_Properties is no\n longer supported. The default and light filters are optimized\n to work with any face.\n * The legacy libXft LCD filter algorithm is no longer provided.\n * A bunch of potential security problems have been found\n (bsc#1259118, CVE-2026-23865). All users should update.\n * The italic angle in `PS_FontInfo` is now stored as a fixed-point\n value in degrees for all Type 1 fonts and their derivatives,\n consistent with CFF fonts and common practices. The broken\n underline position and thickness values are fixed for CFF fonts.\n * The `x` field in the `FT_Span` structure is now unsigned.\n * Demo program `ftgrid` got an option `-m` to select a start\n character to display.\n * Similarly, demo program `ftmulti` got an option `-m` to select a\n text string for rendering.\n * Option `-d` in the demo program `ttdebug` is now called `-a`,\n expecting a comma-separated list of axis values. The user\n interface is also slightly improved.\n * The `ftinspect` demo program can now be compiled with Qt6, too.\n * The auto-hinter got new abilities. It can now better separate\n diacritic glyphs from base glyphs at small sizes by\n artificially moving diacritics up (or down) if necessary\n * Tilde accent glyphs get vertically stretched at small sizes so\n that they don\u0027t degenerate to horizontal lines.\n * Diacritics directly attached to a base glyph (like the ogonek in\n character \u0027\u0119\u0027) no longer distort the shape of the base glyph\n * The TrueType instruction interpreter was optimized to\n produce a 15% gain in the glyph loading speed.\n * Handling of Variation Fonts is now considerably faster\n * TrueType and CFF glyph loading speed has been improved by 5-10%\n on modern 64-bit platforms as a result of better handling of\n fixed-point multiplication.\n * The BDF driver now loads fonts 75% faster.\n",
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{
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"url": "https://www.suse.com/security/cve/CVE-2026-23865/"
}
],
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"date": "2026-09-16T19:34:57Z",
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"product_tree": {
"branches": [
{
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{
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{
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"relationships": [
{
"category": "default_component_of",
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{
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{
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},
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},
{
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},
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},
{
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},
"vulnerabilities": [
{
"cve": "CVE-2026-23865",
"ids": [
{
"system_name": "SUSE CVE Page",
"text": "https://www.suse.com/security/cve/CVE-2026-23865"
}
],
"notes": [
{
"category": "general",
"text": "An integer overflow in the tt_var_load_item_variation_store function of the Freetype library in versions 2.13.2 and 2.13.3 may allow for an out of bounds read operation when parsing HVAR/VVAR/MVAR tables in OpenType variable fonts. This issue is fixed in version 2.14.2.",
"title": "CVE description"
}
],
"product_status": {
"recommended": [
"SUSE Linux Micro 6.0:busybox-0:1.36.1-3.1.aarch64",
"SUSE Linux Micro 6.0:busybox-0:1.36.1-3.1.s390x",
"SUSE Linux Micro 6.0:busybox-0:1.36.1-3.1.x86_64",
"SUSE Linux Micro 6.1:libfreetype6-0:2.14.2-slfo.1.1_1.1.aarch64",
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]
},
"references": [
{
"category": "external",
"summary": "CVE-2026-23865",
"url": "https://www.suse.com/security/cve/CVE-2026-23865"
},
{
"category": "external",
"summary": "SUSE Bug 1259118 for CVE-2026-23865",
"url": "https://bugzilla.suse.com/1259118"
}
],
"remediations": [
{
"category": "vendor_fix",
"details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
"product_ids": [
"SUSE Linux Micro 6.0:busybox-0:1.36.1-3.1.aarch64",
"SUSE Linux Micro 6.0:busybox-0:1.36.1-3.1.s390x",
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]
}
],
"scores": [
{
"cvss_v3": {
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L",
"version": "3.1"
},
"products": [
"SUSE Linux Micro 6.0:busybox-0:1.36.1-3.1.aarch64",
"SUSE Linux Micro 6.0:busybox-0:1.36.1-3.1.s390x",
"SUSE Linux Micro 6.0:busybox-0:1.36.1-3.1.x86_64",
"SUSE Linux Micro 6.1:libfreetype6-0:2.14.2-slfo.1.1_1.1.aarch64",
"SUSE Linux Micro 6.1:libfreetype6-0:2.14.2-slfo.1.1_1.1.ppc64le",
"SUSE Linux Micro 6.1:libfreetype6-0:2.14.2-slfo.1.1_1.1.s390x",
"SUSE Linux Micro 6.1:libfreetype6-0:2.14.2-slfo.1.1_1.1.x86_64"
]
}
],
"threats": [
{
"category": "impact",
"date": "2026-03-16T09:25:21Z",
"details": "moderate"
}
],
"title": "CVE-2026-23865"
}
]
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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