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🛡️ CVE-2024-0727 on Alpine — openssl

⚪ Unknown ✅ No Known Exploit OSV
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

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.

Distribution advisory

This page covers CVE-2024-0727 as tracked by Alpine, for the package openssl. The fix is available in version 3.1.4-r5; earlier versions remain affected.

How this vulnerability can be exploited

This issue can be reached with local access to the system, attack complexity is low, an attacker needs no privileges on the target. A user must be tricked into taking some action. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality none, integrity none, availability high.

CVSS metrics in full

The score comes from this vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

  • Attack vector: Local — a local account, shell or session on the host is needed.
  • Attack complexity: Low — the attack works reliably, with no preparation.
  • Privileges required: None — an unauthenticated stranger can try it.
  • User interaction: Required — someone has to click, open or visit something.
  • Scope: Unchanged — the damage stays inside the vulnerable component.
  • Confidentiality impact: None.
  • Integrity impact: None.
  • Availability impact: High — total loss, or loss the attacker controls.

Weakness class

ALPINE-CVE-2024-0727 is classified as CWE-476: NULL Pointer Dereference. A pointer that can be null is used without a check, crashing the process.

Affected software

ALPINE-CVE-2024-0727 is recorded against 1 package.

  • openssl (from 1.0.2 up to 3.1.4-r5)

Timeline and source

Published on 26 January 2024 and last revised on 8 July 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

security.alpinelinux.org (Advisory)

Other advisories for this package

openssl has other advisories on record. If you are patching this one, these are worth checking on the same host:

Same weakness in other software

These advisories are the same class of weakness (CWE-476: NULL Pointer Dereference) in other software:

CVE-2024-0727 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Details

Severity Unknown
CVSS Score N/A
CVSS Vector CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CWE N/A
Public Exploit ✅ No
Source OSV
Published 2024-01-26
Updated 2026-08-20
Modified 2026-07-08
Fix URL N/A

Affected Packages

Software From version Fixed in
openssl 1.0.2 3.1.4-r5

Vulnerability Monitoring

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ⓘ Data Notice: The information presented above has been compiled from publicly available internet sources. Boteraser aggregates this data solely for informational purposes and does not independently classify, evaluate, or endorse any findings about the vulnerabilities listed. The accuracy and completeness of this information is the sole responsibility of the original publishers. Boteraser and its operators accept no liability for any decisions made based on this data.

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