ubuntu-cve-2025-58050
Vulnerability from osv_ubuntu
Published
2025-08-27 19:15
Modified
2025-09-26 05:16
Summary
Details

The PCRE2 library is a set of C functions that implement regular expression pattern matching. In version 10.45, a heap-buffer-overflow read vulnerability exists in the PCRE2 regular expression matching engine, specifically within the handling of the (scs:...) (Scan SubString) verb when combined with (ACCEPT) in src/pcre2_match.c. This vulnerability may potentially lead to information disclosure if the out-of-bounds data read during the memcmp affects the final match result in a way observable by the attacker. This issue has been resolved in version 10.46.

Severity
6.9 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:L/SC:L/SI:N/SA:L
9.1 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
N/A (UNKNOWN)
medium
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libpcre2-16-0",
            "binary_version": "10.45-1ubuntu0.1"
          },
          {
            "binary_name": "libpcre2-32-0",
            "binary_version": "10.45-1ubuntu0.1"
          },
          {
            "binary_name": "libpcre2-8-0",
            "binary_version": "10.45-1ubuntu0.1"
          },
          {
            "binary_name": "libpcre2-dev",
            "binary_version": "10.45-1ubuntu0.1"
          },
          {
            "binary_name": "libpcre2-posix3",
            "binary_version": "10.45-1ubuntu0.1"
          },
          {
            "binary_name": "pcre2-utils",
            "binary_version": "10.45-1ubuntu0.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.04",
        "name": "pcre2",
        "purl": "pkg:deb/ubuntu/pcre2@10.45-1ubuntu0.1?arch=source\u0026distro=plucky"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "10.45-1ubuntu0.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "10.42-4ubuntu3",
        "10.45-1"
      ]
    }
  ],
  "aliases": [],
  "details": "The PCRE2 library is a set of C functions that implement regular expression pattern matching. In version 10.45, a heap-buffer-overflow read vulnerability exists in the PCRE2 regular expression matching engine, specifically within the handling of the (*scs:...) (Scan SubString) verb when combined with (*ACCEPT) in src/pcre2_match.c. This vulnerability may potentially lead to information disclosure if the out-of-bounds data read during the memcmp affects the final match result in a way observable by the attacker. This issue has been resolved in version 10.46.",
  "id": "UBUNTU-CVE-2025-58050",
  "modified": "2025-09-26T05:16:37Z",
  "published": "2025-08-27T19:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2025-58050"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2025-58050"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/PCRE2Project/pcre2/releases/tag/pcre2-10.46"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/PCRE2Project/pcre2/security/advisories/GHSA-c2gv-xgf5-5cc2"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-7777-1"
    }
  ],
  "related": [
    "USN-7777-1"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:L/SC:L/SI:N/SA:L",
      "type": "CVSS_V4"
    },
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2025-58050"
  ],
  "withdrawn": "2026-01-20T05:33:10Z"
}



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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.

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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