CVE-2024-0727

Published Jan 26, 2024

Last updated a year ago

CVSS medium 5.5
Ubuntu

Overview

Description
Issue summary: Processing a maliciously formatted PKCS12 file may lead OpenSSL to crash leading to a potential Denial of Service attack Impact summary: Applications loading files in the PKCS12 format from untrusted sources might terminate abruptly. A file in PKCS12 format can contain certificates and keys and may come from an untrusted source. The PKCS12 specification allows certain fields to be NULL, but OpenSSL does not correctly check for this case. This can lead to a NULL pointer dereference that results in OpenSSL crashing. If an application processes PKCS12 files from an untrusted source using the OpenSSL APIs then that application will be vulnerable to this issue. OpenSSL APIs that are vulnerable to this are: PKCS12_parse(), PKCS12_unpack_p7data(), PKCS12_unpack_p7encdata(), PKCS12_unpack_authsafes() and PKCS12_newpass(). We have also fixed a similar issue in SMIME_write_PKCS7(). However since this function is related to writing data we do not consider it security significant. The FIPS modules in 3.2, 3.1 and 3.0 are not affected by this issue.
Source
openssl-security@openssl.org
NVD status
Modified
Products
openssl

Risk scores

CVSS 3.1

Type
Primary
Base score
5.5
Impact score
3.6
Exploitability score
1.8
Vector string
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Severity
MEDIUM

Weaknesses

openssl-security@openssl.org
CWE-476
nvd@nist.gov
NVD-CWE-noinfo

Social media

Hype score
Not currently trending

  1. kusanagi-openssl モジュール更新情報 3.3.3-1 KUSANAGI 9 を構成している各モジュールのアップデートを行いました。 アップデートにより適用される各モジュールのバージョンは、以下のとおりとなります。 openssl 3.3.

    @kusanagi_saya

    5 Aug 2025

    66 Impressions

    1 Retweet

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Configurations

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References

Sources include official advisories and independent security research.