---
schema_version: '1.0'
id: security-20260705-2e4ad0
url: https://osv.dev/vulnerability/DEBIAN-CVE-2025-15468
url_hash: 2e4ad0e88ec3370b192f8371a19a19bc6a4caae7385f1a6a4ea98f40707fecfb
canonical_url: https://osv.dev/vulnerability/DEBIAN-CVE-2025-15468
source: osv:debian
category: security/os
category_raw: cve/os
region: null
tags:
- cve
- DEBIAN-CVE-2025-15468
- severity:CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
- openssl
- Debian
lang: en
published_at: '2026-01-27T16:16:14Z'
fetched_at: '2026-07-05T15:34:34Z'
updated_at: '2026-07-05T15:35:57Z'
status: published
content_hash: b690239c560c5b4241594a9fdff9734fe09c815cb31b99be64d531770b3e1543
license_note: full
summary: 'Issue summary: If an application using the SSL_CIPHER_find() function in
  a QUIC protocol client or server receives an unknown cipher suite from the peer,
  a NULL dereference occurs.  Impact summary: A NULL pointer dereference leads to
  abnormal termination of the running process ca'
summary_source: rss
summary_en: 'Issue summary: If an application using the SSL_CIPHER_find() function
  in a QUIC protocol client or server receives an unknown cipher suite from the peer,
  a NULL dereference occurs.  Impact summary: A NULL pointer dereference leads to
  abnormal termination of the running process ca'
entities: []
key_facts: []
related: []
related_auto: []
title: DEBIAN-CVE-2025-15468 — openssl
---

# DEBIAN-CVE-2025-15468 — openssl

## TL;DR
Issue summary: If an application using the SSL_CIPHER_find() function in a QUIC protocol client or server receives an unknown cipher suite from the peer, a NULL dereference occurs.  Impact summary: A NULL pointer dereference leads to abnormal termination of the running process ca

## Key Points
- cve / DEBIAN-CVE-2025-15468 / severity:CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H / openssl / Debian

## Details
**Severity:** CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
**Advisory:** DEBIAN-CVE-2025-15468

**Affected (your watchlist):**
- `Debian:openssl` 3.0.11-1~deb12u2 → no fixed version listed [rpi]

**Details:**
Issue summary: If an application using the SSL_CIPHER_find() function in a QUIC protocol client or server receives an unknown cipher suite from the peer, a NULL dereference occurs.  Impact summary: A NULL pointer dereference leads to abnormal termination of the running process causing Denial of Service.  Some applications call SSL_CIPHER_find() from the client_hello_cb callback on the cipher ID received from the peer. If this is done with an SSL object implementing the QUIC protocol, NULL pointer dereference will happen if the examined cipher ID is unknown or unsupported.  As it is not very common to call this function in applications using the QUIC  protocol and the worst outcome is Denial of Service, the issue was assessed as Low severity.  The vulnerable code was introduced in the 3.2 version with the addition of the QUIC protocol support.  The FIPS modules in 3.6, 3.5, 3.4 and 3.3 are not affected by this issue, as the QUIC implementation is outside the OpenSSL FIPS module boundary.  OpenSSL 3.6, 3.5, 3.4 and 3.3 are vulnerable to this issue.  OpenSSL 3.0, 1.1.1 and 1.0.2 are not affected by this issue.

**References:**
- https://security-tracker.debian.org/tracker/CVE-2025-15468

_Data: OSV.dev (upstream: debian) — https://osv.dev/vulnerability/DEBIAN-CVE-2025-15468_

## Source
元記事: [DEBIAN-CVE-2025-15468 — openssl](https://osv.dev/vulnerability/DEBIAN-CVE-2025-15468) — published 2026-01-27T16:16:14Z