CVE-2025-12105 (GCVE-0-2025-12105)

Vulnerability from cvelistv5 – Published: 2025-10-23 09:14 – Updated: 2026-06-29 23:28
VLAI
Title
Libsoup: heap use-after-free in libsoup message queue handling during http/2 read completion
Summary
A flaw was found in the asynchronous message queue handling of the libsoup library, widely used by GNOME and WebKit-based applications to manage HTTP/2 communications. When network operations are aborted at specific timing intervals, an internal message queue item may be freed twice due to missing state synchronization. This leads to a use-after-free memory access, potentially crashing the affected application. Attackers could exploit this behavior remotely by triggering specific HTTP/2 read and cancel sequences, resulting in a denial-of-service condition.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-10-23 14:54 UTC
CWE
Assigner
redhat CNA under the redhat root
CNA scorecard B 82/100 over 1042 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
GNOME libsoup Affected: 0 , ≤ 3.6.5 (semver)
guessed Create a notification for this product.
Red Hat Red Hat Enterprise Linux 10 Unaffected: 0:3.6.5-3.el10_1.7 , < * (rpm)
    cpe:/o:redhat:enterprise_linux:10.1
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support Unaffected: 0:3.6.5-3.el10_0.10 , < * (rpm)
    cpe:/o:redhat:enterprise_linux_eus:10.0
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 6     cpe:/o:redhat:enterprise_linux:6
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 7     cpe:/o:redhat:enterprise_linux:7
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 8     cpe:/o:redhat:enterprise_linux:8
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 9     cpe:/o:redhat:enterprise_linux:9
Create a notification for this product.
Date Public
2025-10-23 00:00
Show details on NVD website

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                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                "version": "3.1"
              },
              "format": "CVSS"
            }
          ],
          "problemTypes": [
            {
              "descriptions": [
                {
                  "cweId": "CWE-416",
                  "description": "Use After Free",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-06-29T23:28:57.619Z",
            "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
            "shortName": "redhat"
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          "references": [
            {
              "name": "RHSA-2025:23139",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2025:23139"
            },
            {
              "name": "RHSA-2025:23437",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2025:23437"
            },
            {
              "tags": [
                "vdb-entry",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/security/cve/CVE-2025-12105"
            },
            {
              "name": "RHBZ#2405992",
              "tags": [
                "issue-tracking",
                "x_refsource_REDHAT"
              ],
              "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2405992"
            },
            {
              "url": "https://gitlab.gnome.org/GNOME/libsoup/-/merge_requests/481"
            }
          ],
          "timeline": [
            {
              "lang": "en",
              "time": "2025-10-23T08:20:47.896Z",
              "value": "Reported to Red Hat."
            },
            {
              "lang": "en",
              "time": "2025-10-23T00:00:00.000Z",
              "value": "Made public."
            }
          ],
          "title": "Libsoup: heap use-after-free in libsoup message queue handling during http/2 read completion",
          "workarounds": [
            {
              "lang": "en",
              "value": "Mitigation for this issue is either not available or the currently available options don\u0027t meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to a widespread installation base, or stability."
            }
          ],
          "x_generator": {
            "engine": "cvelib 1.8.0"
          },
          "x_redhatCweChain": "CWE-416: Use After Free"
        }
      },
      "cveMetadata": {
        "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "assignerShortName": "redhat",
        "cveId": "CVE-2025-12105",
        "datePublished": "2025-10-23T09:14:14.077Z",
        "dateReserved": "2025-10-23T08:25:39.401Z",
        "dateUpdated": "2026-06-29T23:28:57.619Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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