7.5

CVE-2023-0216: Invalid pointer dereference in d2i_PKCS7 functions

Modified
AliasesALPINE-CVE-2023-0216UBUNTU-CVE-2023-0216DEBIAN-CVE-2023-0216
Published 08-02-2023Last modified 04-11-2025

Vulnerability summary

CVE-2023-0216 is a high (CVSS 7.5) NULL Pointer Dereference vulnerability in openssl. EPSS estimates a 1.85% chance of exploitation in the next 30 days, higher than 79% of scored vulnerabilities.

Priority
Prioritisesevere

Severe, CVSS 7.5 (CVE.org); no exploitation reported by the 5 checked sources; EPSS 2% (FIRST, 03-11-2026)

Source freshness unavailable

How is this decided?
CVSS score
7.5/10
010
High · v3.1 (CVE.org)
EPSS score
1.85%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 6 · Related 7
MGASA-2023-0130OPENSUSE-SU-2024:12716-1RHSA-2023:0946RHSA-2023:1199SUSE-SU-2023:0312-1USN-5844-1

Timeline

  1. 08-02-2023
    PublishedVulnerability first disclosed.
  2. 04-11-2025
    Last modifiedVulnerability information updated.

Description

An invalid pointer dereference on read can be triggered when an application tries to load malformed PKCS7 data with the d2i_PKCS7(), d2i_PKCS7_bio() or d2i_PKCS7_fp() functions. The result of the dereference is an application crash which could lead to a denial of service attack. The TLS implementation in OpenSSL does not call this function however third party applications might call these functions on untrusted data.

CVSS metrics

8 scores · 8 sources · 1 version

EPSS trend

Probability

1.85%

Chance of exploitation in the next 30 days

Percentile

79%

Versus all other CVEs

30-day change

No change 0.00 pp

From 1.85% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.

Chainguard3 products
  • openssl< 3.1.0-r0
  • openssl-provider-fips< 3.0.8-r0
  • ruby-3.1All versions (No fix recorded)
Alpine2 products
  • openssl≥ 3.0.0, < 3.0.8-r0
  • openssl3< 3.0.8-r0
Wolfi2 products
  • openssl< 3.1.0-r0
  • ruby-3.1All versions (No fix recorded)
Crates.Io1 product
  • openssl-src≥ 300.0.0, < 300.0.12
Debian1 product
  • openssl< 3.0.8-1
Openssl1 product
  • openssl≥ 3.0.0, < 3.0.8 | ≥ 3.0.0, ≤ 3.0.7
Stormshield1 product
Ubuntu1 product
  • openssl< 3.0.2-0ubuntu1.8

8 vendors · 12 products

References

13 links
Show all 13 references