---
schema_version: '1.0'
id: security-20260705-435fbb
url: https://osv.dev/vulnerability/DEBIAN-CVE-2025-9231
url_hash: 435fbb2ebd6031a6dc7545a1b3e1f73e24e3fa972847c1cc989b996bdbc63910
canonical_url: https://osv.dev/vulnerability/DEBIAN-CVE-2025-9231
source: osv:debian
category: security/os
category_raw: cve/os
region: null
tags:
- cve
- DEBIAN-CVE-2025-9231
- severity:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
- 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: bf680953a8f9fd236757b4382ac6f140426111f901d32c05b2818af5790f21f6
license_note: full
summary: 'Issue summary: A timing side-channel which could potentially allow remote
  recovery of the private key exists in the SM2 algorithm implementation on 64 bit
  ARM platforms.  Impact summary: A timing side-channel in SM2 signature computations
  on 64 bit ARM platforms could allow recov'
summary_source: rss
summary_en: 'Issue summary: A timing side-channel which could potentially allow remote
  recovery of the private key exists in the SM2 algorithm implementation on 64 bit
  ARM platforms.  Impact summary: A timing side-channel in SM2 signature computations
  on 64 bit ARM platforms could allow recov'
entities: []
key_facts: []
related: []
related_auto: []
title: DEBIAN-CVE-2025-9231 — openssl
---

# DEBIAN-CVE-2025-9231 — openssl

## TL;DR
Issue summary: A timing side-channel which could potentially allow remote recovery of the private key exists in the SM2 algorithm implementation on 64 bit ARM platforms.  Impact summary: A timing side-channel in SM2 signature computations on 64 bit ARM platforms could allow recov

## Key Points
- cve / DEBIAN-CVE-2025-9231 / severity:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L / openssl / Debian

## Details
**Severity:** CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
**Advisory:** DEBIAN-CVE-2025-9231

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

**Details:**
Issue summary: A timing side-channel which could potentially allow remote recovery of the private key exists in the SM2 algorithm implementation on 64 bit ARM platforms.  Impact summary: A timing side-channel in SM2 signature computations on 64 bit ARM platforms could allow recovering the private key by an attacker..  While remote key recovery over a network was not attempted by the reporter, timing measurements revealed a timing signal which may allow such an attack.  OpenSSL does not directly support certificates with SM2 keys in TLS, and so this CVE is not relevant in most TLS contexts.  However, given that it is possible to add support for such certificates via a custom provider, coupled with the fact that in such a custom provider context the private key may be recoverable via remote timing measurements, we consider this to be a Moderate severity issue.  The FIPS modules in 3.5, 3.4, 3.3, 3.2, 3.1 and 3.0 are not affected by this issue, as SM2 is not an approved algorithm.

**References:**
- https://security-tracker.debian.org/tracker/CVE-2025-9231

_Data: OSV.dev (upstream: debian) — https://osv.dev/vulnerability/DEBIAN-CVE-2025-9231_

## Source
元記事: [DEBIAN-CVE-2025-9231 — openssl](https://osv.dev/vulnerability/DEBIAN-CVE-2025-9231) — published 2025-09-30T14:15:41Z