---
schema_version: '1.0'
id: security-20260705-2f778b
url: https://osv.dev/vulnerability/DEBIAN-CVE-2025-9232
url_hash: 2f778b32c2b327249ac1fa0670d0dc09dfd5862d8c6830ec65448fe2383c3f29
canonical_url: https://osv.dev/vulnerability/DEBIAN-CVE-2025-9232
source: osv:debian
category: security/os
category_raw: cve/os
region: null
tags:
- cve
- DEBIAN-CVE-2025-9232
- 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: '2025-09-30T14:15:41Z'
fetched_at: '2026-07-05T15:34:34Z'
updated_at: '2026-07-05T15:35:57Z'
status: published
content_hash: 7cf8dfacbaf3af716cd0bdd73e406a0d8d8b392cbfd72a726f31e261a7182b59
license_note: full
summary: 'Issue summary: An application using the OpenSSL HTTP client API functions
  may trigger an out-of-bounds read if the ''no_proxy'' environment variable is set
  and the host portion of the authority component of the HTTP URL is an IPv6 address.  Impact
  summary: An out-of-bounds read can'
summary_source: rss
summary_en: 'Issue summary: An application using the OpenSSL HTTP client API functions
  may trigger an out-of-bounds read if the ''no_proxy'' environment variable is set
  and the host portion of the authority component of the HTTP URL is an IPv6 address.  Impact
  summary: An out-of-bounds read can'
entities: []
key_facts: []
related: []
related_auto: []
title: DEBIAN-CVE-2025-9232 — openssl
---

# DEBIAN-CVE-2025-9232 — openssl

## TL;DR
Issue summary: An application using the OpenSSL HTTP client API functions may trigger an out-of-bounds read if the 'no_proxy' environment variable is set and the host portion of the authority component of the HTTP URL is an IPv6 address.  Impact summary: An out-of-bounds read can

## Key Points
- cve / DEBIAN-CVE-2025-9232 / 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-2025-9232

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

**Details:**
Issue summary: An application using the OpenSSL HTTP client API functions may trigger an out-of-bounds read if the 'no_proxy' environment variable is set and the host portion of the authority component of the HTTP URL is an IPv6 address.  Impact summary: An out-of-bounds read can trigger a crash which leads to Denial of Service for an application.  The OpenSSL HTTP client API functions can be used directly by applications but they are also used by the OCSP client functions and CMP (Certificate Management Protocol) client implementation in OpenSSL. However the URLs used by these implementations are unlikely to be controlled by an attacker.  In this vulnerable code the out of bounds read can only trigger a crash. Furthermore the vulnerability requires an attacker-controlled URL to be passed from an application to the OpenSSL function and the user has to have a 'no_proxy' environment variable set. For the aforementioned reasons the issue was assessed as Low severity.  The vulnerable code was introduced in the following patch releases: 3.0.16, 3.1.8, 3.2.4, 3.3.3, 3.4.0 and 3.5.0.  The FIPS modules in 3.5, 3.4, 3.3, 3.2, 3.1 and 3.0 are not affected by this issue, as the HTTP client implementation is outside the OpenSSL FIPS module boundary.

**References:**
- https://security-tracker.debian.org/tracker/CVE-2025-9232

_Data: OSV.dev (upstream: debian) — https://osv.dev/vulnerability/DEBIAN-CVE-2025-9232_

## Source
元記事: [DEBIAN-CVE-2025-9232 — openssl](https://osv.dev/vulnerability/DEBIAN-CVE-2025-9232) — published 2025-09-30T14:15:41Z