CVE-2024-0727
No exploitation reported by the sources we read.
- Published2024-01-26
- Fixed in3.1.5 · 3.0.13 · 1.1.1x · 1.0.2zj
- WeaknessCWE-476
Am I affected?
Debian, Ubuntu or Red Hat sometimes backport a fix without changing the upstream version number: such a version reads « to verify », never « affected ».With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.
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.
Timeline
dates in UTC- 2024-01-2609:15CVE publishedNVD
Observed activity
isMalicious corpus · updated 2026-10-23 21:37 UTCBlock these indicators
- Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2024-0727?format=txt
- CSV export: https://api.ismalicious.com/edl/cve/CVE-2024-0727?format=csv
- TAXII collection of exploited CVEs
- The EDL and CSV take an API key on the Pro plan.
Versions per branch
NVD · OSV| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 3.1 | ≥ 3.1.0, < 3.1.5 | 3.1.5 | NVD |
| 3.0 | ≥ 3.0.0, < 3.0.13 | 3.0.13 | NVD |
| 1.1 | ≥ 1.1.1, < 1.1.1x | 1.1.1x | NVD |
| 1.0 | ≥ 1.0.2, < 1.0.2zj | 1.0.2zj | NVD |
| 3.2 | = 3.2.0 | no fix published | NVD |
| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 42.0 | < 42.0.2 | 42.0.2 | OSV |
as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.
Distribution builds and vendor advisories
Packages from OSV.dev and products from the vendors' CSAF advisories.
version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.
Packages
- edk2-toolsAlmaLinux:9all versions · fixed in 20240524-6.el9_5and 3 other packages
- opensslAlmaLinux:9all versions · fixed in 1:3.0.7-27.el9and 3 other packages
Vendor advisories
Mitsubishi Electric MELSEC iQ-F FX5-OPC
Mitsubishi Electric MELSEC iQ-F FX5-OPC: vers:all/*
Fix
- Update OpenSSL to 3.1.5 · 3.0.13 · 1.1.1x · 1.0.2zj
- Mitigation from the vendor CISA ICSA-24-275-02 · 1 productMitsubishi Electric recommends that customers take the following mitigations to minimize the risk of exploiting this vulnerability:
- Mitigation from the vendor CISA ICSA-24-275-02 · 1 productUse within a LAN and block access from untrusted networks and hosts through firewalls.
- Mitigation from the vendor CISA ICSA-24-275-02 · 1 productRestrict physical access to the product, as well as to computers and network devices located within the same network as the product.
- Mitigation from the vendor CISA ICSA-24-275-02 · 1 productUse a firewall or virtual private network (VPN), etc. to prevent unauthorized access when Internet access is required.
- Mitigation from the vendor CISA ICSA-24-275-02 · 1 productUse IP filter function to block access from untrusted hosts. For details on the IP filter function, please refer to the following manual. MELSEC iQ-F FX5 OPC UA Module User's Manual "4.4 IP Filter"
- Mitigation from the vendor CISA ICSA-24-275-02 · 1 productDo not import untrusted certificates.
Advisories and patches
- github.comPatch
- github.comPatch
- github.comPatch
- github.openssl.orgPatch
- github.openssl.orgPatch
- www.openssl.orgVendor Advisory
Detection
- Nuclei template
- none so far ProjectDiscovery
- Exploit-DB
- no entry Exploit-DB
- Proof-of-concept repositories
- none listed PoC-in-GitHub
Sources
Technical details
- CVSS v3 Vector
- CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- Published
- 2024-01-26
- Last Modified
- 2026-10-15
- NVD status
- Modified
Frequently asked questions
What is CVE-2024-0727?
Is CVE-2024-0727 actively exploited?
What is the CVSS score for CVE-2024-0727?
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