Vulnerability-Lookup

alsa-2025:3421

Vulnerability from osv_almalinux

Published

2025-03-31 00:00

Modified

2025-04-01 07:12

Summary

Important: freetype security update

Details

FreeType is a free, high-quality, portable font engine that can open and manage font files. FreeType loads, hints, and renders individual glyphs efficiently.

Security Fix(es):

freetype: OOB write when attempting to parse font subglyph structures related to TrueType GX and variable font files (CVE-2025-27363)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

References

URL

Type

	https://access.redhat.com/errata/RHSA-2025:3421	ADVISORY
	https://access.redhat.com/security/cve/CVE-2025-27363	REPORT
	https://bugzilla.redhat.com/2351357	REPORT
	https://errata.almalinux.org/8/ALSA-2025-3421.html	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "AlmaLinux:8",
        "name": "freetype"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.9.1-10.el8_10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "AlmaLinux:8",
        "name": "freetype-devel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.9.1-10.el8_10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "details": "FreeType is a free, high-quality, portable font engine that can open and manage font files. FreeType loads, hints, and renders individual glyphs efficiently.  \n\nSecurity Fix(es):  \n\n  * freetype: OOB write when attempting to parse font subglyph structures related to TrueType GX and variable font files (CVE-2025-27363)\n\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n",
  "id": "ALSA-2025:3421",
  "modified": "2025-04-01T07:12:12Z",
  "published": "2025-03-31T00:00:00Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2025:3421"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2025-27363"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2351357"
    },
    {
      "type": "ADVISORY",
      "url": "https://errata.almalinux.org/8/ALSA-2025-3421.html"
    }
  ],
  "related": [
    "CVE-2025-27363"
  ],
  "summary": "Important: freetype security update"
}

CVE-2025-27363 (GCVE-0-2025-27363)

Vulnerability from cvelistv5 – Published: 2025-03-11 13:28 – Updated: 2026-02-26 19:09

Summary

An out of bounds write exists in FreeType versions 2.13.0 and below (newer versions of FreeType are not vulnerable) when attempting to parse font subglyph structures related to TrueType GX and variable font files. The vulnerable code assigns a signed short value to an unsigned long and then adds a static value causing it to wrap around and allocate too small of a heap buffer. The code then writes up to 6 signed long integers out of bounds relative to this buffer. This may result in arbitrary code execution. This vulnerability may have been exploited in the wild.

Severity ?

8.1 (High)


                        
                          CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C/CR:H/IR:H/AR:H/MAV:N/MAC:L/MPR:N/MUI:N/MS:U/MC:H/MI:H/MA:H

CWE

Out-of-bounds Write (CWE-787)

Assigner

facebook

References

URL

Tags

https://www.facebook.com/security/advisories/cve-…

x_refsource_CONFIRM

Impacted products

	Vendor	Product	Version
	FreeType	FreeType	Affected: 0.0.0 , ≤ 2.13.0 (semver)

Show details on NVD website

JSON

To clipboard

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                "timestamp": "2025-05-07T03:55:53.843762Z",
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}

Sightings

Author	Source	Type	Date

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.

Detection rules are retrieved from Rulezet.

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