---
schema_version: '1.0'
id: security-20260705-1d9e42
url: https://osv.dev/vulnerability/DEBIAN-CVE-2023-5678
url_hash: 1d9e425b6f5d14f07771ddc9fc16e5a307545247250eb4d0653ee936f5c07905
canonical_url: https://osv.dev/vulnerability/DEBIAN-CVE-2023-5678
source: osv:debian
category: security/os
category_raw: cve/os
region: null
tags:
- cve
- DEBIAN-CVE-2023-5678
- severity:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
- openssl
- Debian
lang: en
published_at: '2023-11-06T16:15:42Z'
fetched_at: '2026-07-05T15:34:33Z'
updated_at: '2026-07-05T15:35:24Z'
status: published
content_hash: 1db94aa94f56dd8fd1204e0a27034b776e9349127d32512a2dc21590621fe8a0
license_note: full
summary: 'Issue summary: Generating excessively long X9.42 DH keys or checking excessively
  long X9.42 DH keys or parameters may be very slow.  Impact summary: Applications
  that use the functions DH_generate_key() to generate an X9.42 DH key may experience
  long delays.  Likewise, applicatio'
summary_source: rss
summary_en: 'Issue summary: Generating excessively long X9.42 DH keys or checking
  excessively long X9.42 DH keys or parameters may be very slow.  Impact summary:
  Applications that use the functions DH_generate_key() to generate an X9.42 DH key
  may experience long delays.  Likewise, applicatio'
entities: []
key_facts: []
related: []
related_auto: []
title: DEBIAN-CVE-2023-5678 — openssl
---

# DEBIAN-CVE-2023-5678 — openssl

## TL;DR
Issue summary: Generating excessively long X9.42 DH keys or checking excessively long X9.42 DH keys or parameters may be very slow.  Impact summary: Applications that use the functions DH_generate_key() to generate an X9.42 DH key may experience long delays.  Likewise, applicatio

## Key Points
- cve / DEBIAN-CVE-2023-5678 / severity:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L / openssl / Debian

## Details
**Severity:** CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
**Advisory:** DEBIAN-CVE-2023-5678

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

**Details:**
Issue summary: Generating excessively long X9.42 DH keys or checking excessively long X9.42 DH keys or parameters may be very slow.  Impact summary: Applications that use the functions DH_generate_key() to generate an X9.42 DH key may experience long delays.  Likewise, applications that use DH_check_pub_key(), DH_check_pub_key_ex() or EVP_PKEY_public_check() to check an X9.42 DH key or X9.42 DH parameters may experience long delays. Where the key or parameters that are being checked have been obtained from an untrusted source this may lead to a Denial of Service.  While DH_check() performs all the necessary checks (as of CVE-2023-3817), DH_check_pub_key() doesn't make any of these checks, and is therefore vulnerable for excessively large P and Q parameters.  Likewise, while DH_generate_key() performs a check for an excessively large P, it doesn't check for an excessively large Q.  An application that calls DH_generate_key() or DH_check_pub_key() and supplies a key or parameters obtained from an untrusted source could be vulnerable to a Denial of Service attack.  DH_generate_key() and DH_check_pub_key() are also called by a number of other OpenSSL functions.  An application calling any of those other functions may similarly be affected.  The other functions affected by this are DH_check_pub_key_ex(), EVP_PKEY_public_check(), and EVP_PKEY_generate().  Also vulnerable are the OpenSSL pkey command line application when using the "-pubcheck" option, as well as the OpenSSL genpkey command line application.  The OpenSSL SSL/TLS implementation is not affected by this issue.  The OpenSSL 3.0 and 3.1 FIPS providers are not affected by this issue.

**References:**
- https://security-tracker.debian.org/tracker/CVE-2023-5678

_Data: OSV.dev (upstream: debian) — https://osv.dev/vulnerability/DEBIAN-CVE-2023-5678_

## Source
元記事: [DEBIAN-CVE-2023-5678 — openssl](https://osv.dev/vulnerability/DEBIAN-CVE-2023-5678) — published 2023-11-06T16:15:42Z