CVE-2024-0727: PKCS12 Decoding crashes
Noroxi assessment
Priority: Monitor (action score 23/100)
- The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
- Probability of exploitation in the next 30 days: 3.1% (FIRST EPSS); higher than 87.9% of all records.
- Someone with local access to the system can trigger it. No account or password is required. A user must open a link or visit a page. No special conditions are required; it is repeatable.
- Fixed version: OpenSSL OpenSSL 3.0.13, 3.1.5, 3.2.1.
Low priority for now. Upgrade to OpenSSL OpenSSL 3.0.13, 3.1.5, 3.2.1 or later.
Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it
Primary sources: NVD · CVE.org · FIRST EPSS
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.
- BDU:2024-01337
- GHSA-9v9h-cgj8-h64p
- ALSA-2024:2447
- ALSA-2024:9088
- DLA-3942-1
- DLA-3942-2
- openSUSE-SU-2024:13656-1
- openSUSE-SU-2024:13662-1
- openSUSE-SU-2024:13663-1
- openSUSE-SU-2026:11592-1
- PYSEC-2026-1285
- RHSA-2024:2447
- RHSA-2024:9088
- RLSA-2024:9088
- SUSE-SU-2024:0518-1
- SUSE-SU-2024:0549-1
- SUSE-SU-2024:0813-1
- SUSE-SU-2024:0814-1
- SUSE-SU-2024:0815-1
- SUSE-SU-2024:0831-1
- Published
- Jan 26, 2024
- Updated
- Oct 15, 2026
- EPSS
- 3.1% · 87th percentile
- CWE
- CWE-476
Report tools
Action score
23
Monitor
Low priority for now.
- CVSS
- 22 / 40 · 5.5 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 1 / 30 · 3.1%
CISA SSVC decision
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
Vulnrichment: CISA's decision-tree inputs.
CNA vs NVD score
- NVD
- 5.5
- CNA · openssl
- 5.5
- agree
The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.
Get told when this record changes
- Not in KEV: no record of exploitation in the wild
- No public exploit code on record
- A fix has been released
If any of these changes, we'll tell you in the daily email digest.
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Noroxi analysis
What does it mean in your environment?
The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.
We use this product, ask for helpAffected systems
Is your version affected?
Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.
| Vendor | Product | CPE |
|---|---|---|
| openssl | openssl | cpe:2.3:a:openssl:openssl |
Check your server's TLS configuration
The OpenSSL version can't be seen from outside; the free SSL checker tests your certificate, enabled TLS versions and weak ciphers. Confirm the version on your server with the package manager.
Run the SSL checkAffected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- openssl openssl1.0.2 and later · before 1.0.2zj
- openssl openssl1.1.1 and later · before 1.1.1x
- openssl openssl3.0.0 and later · before 3.0.13
- openssl openssl3.1.0 and later · before 3.1.5
- openssl openssl3.2.0
Versions reported by the vendor
Affected version ranges reported by the assigning authority (openssl). Independent of NVD's CPE analysis and usually ahead of it.
OpenSSL OpenSSL
- 3.2.0 and later · before 3.2.1affected · semver
- 3.1.0 and later · before 3.1.5affected · semver
- 3.0.0 and later · before 3.0.13affected · semver
- 1.1.1 and later · before 1.1.1xaffected
- 1.0.2 and later · before 1.0.2zjaffected
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| AlmaLinux:9 | edk2-aarch64 | before 20240524-6.el9_5 | 20240524-6.el9_5 |
| AlmaLinux:9 | edk2-ovmf | before 20240524-6.el9_5 | 20240524-6.el9_5 |
| AlmaLinux:9 | edk2-tools | before 20240524-6.el9_5 | 20240524-6.el9_5 |
| AlmaLinux:9 | edk2-tools-doc | before 20240524-6.el9_5 | 20240524-6.el9_5 |
| AlmaLinux:9 | openssl | before 1:3.0.7-27.el9 | 1:3.0.7-27.el9 |
| AlmaLinux:9 | openssl-devel | before 1:3.0.7-27.el9 | 1:3.0.7-27.el9 |
| AlmaLinux:9 | openssl-libs | before 1:3.0.7-27.el9 | 1:3.0.7-27.el9 |
| AlmaLinux:9 | openssl-perl | before 1:3.0.7-27.el9 | 1:3.0.7-27.el9 |
| Alpine:v3.17 | openssl | from 1.0.2 · before 3.0.12-r4 | 3.0.12-r4 |
| Alpine:v3.18 | openssl | from 1.0.2 · before 3.1.4-r5 | 3.1.4-r5 |
| Debian:11 | openssl | before 1.1.1n-0+deb11u6 | 1.1.1n-0+deb11u6 |
| Debian:11 | openssl | before 1.1.1w-0+deb11u2 | 1.1.1w-0+deb11u2 |
| Debian:12 | openssl | before 3.0.13-1~deb12u1 | 3.0.13-1~deb12u1 |
| Debian:13 | openssl | before 3.1.5-1 | 3.1.5-1 |
| openSUSE:Leap 15.5 | openssl-1_0_0 | before 1.0.2p-150000.3.91.1 | 1.0.2p-150000.3.91.1 |
| openSUSE:Leap 15.5 | openssl-1_1 | before 1.1.1l-150500.17.25.1 | 1.1.1l-150500.17.25.1 |
| openSUSE:Leap 15.5 | openssl-3 | before 3.0.8-150500.5.27.1 | 3.0.8-150500.5.27.1 |
| openSUSE:Leap Micro 5.3 | openssl-1_1 | before 1.1.1l-150400.7.63.1 | 1.1.1l-150400.7.63.1 |
| openSUSE:Leap Micro 5.3 | openssl-3 | before 3.0.8-150400.4.49.1 | 3.0.8-150400.4.49.1 |
| openSUSE:Tumbleweed | boringssl | before 0.20260813-1.1 | 0.20260813-1.1 |
| openSUSE:Tumbleweed | openssl-1_0_0 | before 1.0.2u-24.1 | 1.0.2u-24.1 |
| openSUSE:Tumbleweed | openssl-1_1 | before 1.1.1w-7.1 | 1.1.1w-7.1 |
| openSUSE:Tumbleweed | openssl-3 | before 3.1.4-4.1 | 3.1.4-4.1 |
| PyPI | cryptography | before 42.0.2 | 42.0.2 |
+26
Same product
openssl: all recordsOther highest-scoring records for the same primary product.
- CVE-2014-0160The (1) TLS and (2) DTLS implementations in OpenSSL 1.0.1 before 1.0.1g do not properly handle Heartbeat Extension packets, which allows remKEV90Now
- CVE-2021-3711SM2 Decryption Buffer Overflow65This week
- CVE-2003-0545Double free vulnerability in OpenSSL 0.9.7 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code 65This week
Published before and after this one in the same product
- ← EarlierCVE-2023-5678Nov 6, 2023 · Excessive time spent in DH check / generation with large Q parameter value22Monitor
- ← EarlierCVE-2023-6129Jan 9, 2024 · POLY1305 MAC implementation corrupts vector registers on PowerPC27Monitor
- Later →CVE-2024-2511Apr 8, 2024 · Unbounded memory growth with session handling in TLSv1.339Monitor
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
| Product / package | Fixed version | Source |
|---|---|---|
| OpenSSL OpenSSL | 3.0.13 | Vendor (CNA) |
| OpenSSL OpenSSL | 3.1.5 | Vendor (CNA) |
| OpenSSL OpenSSL | 3.2.1 | Vendor (CNA) |
| almalinux:edk2-aarch64 | 20240524-6.el9_5 · AlmaLinux:9 | Package registry (OSV) |
| almalinux:edk2-ovmf | 20240524-6.el9_5 · AlmaLinux:9 | Package registry (OSV) |
| almalinux:edk2-tools | 20240524-6.el9_5 · AlmaLinux:9 | Package registry (OSV) |
| almalinux:edk2-tools-doc | 20240524-6.el9_5 · AlmaLinux:9 | Package registry (OSV) |
| almalinux:openssl | 1:3.0.7-27.el9 · AlmaLinux:9 | Package registry (OSV) |
| almalinux:openssl-devel | 1:3.0.7-27.el9 · AlmaLinux:9 | Package registry (OSV) |
| almalinux:openssl-libs | 1:3.0.7-27.el9 · AlmaLinux:9 | Package registry (OSV) |
| almalinux:openssl-perl | 1:3.0.7-27.el9 · AlmaLinux:9 | Package registry (OSV) |
| alpine:openssl | 3.0.12-r4 · Alpine:v3.17 | Package registry (OSV) |
| debian:openssl | 3.0.13-1~deb12u1 · Debian:12 | Package registry (OSV) |
| opensuse:boringssl | 0.20260813-1.1 · openSUSE:Tumbleweed | Package registry (OSV) |
| opensuse:openssl-1_0_0 | 1.0.2p-150000.3.91.1 · openSUSE:Leap 15.5 | Package registry (OSV) |
| opensuse:openssl-1_1 | 1.1.1l-150500.17.25.1 · openSUSE:Leap 15.5 | Package registry (OSV) |
| opensuse:openssl-3 | 3.0.8-150400.4.49.1 · openSUSE:Leap Micro 5.3 | Package registry (OSV) |
| PyPI:cryptography | 42.0.2 | Package registry (OSV) |
| red hat:edk2 | 0:20240524-6.el9_5 · Red Hat:enterprise_linux:9::appstream | Package registry (OSV) |
| red hat:edk2-aarch64 | 0:20240524-6.el9_5 · Red Hat:enterprise_linux:9::appstream | Package registry (OSV) |
| red hat:edk2-debugsource | 0:20240524-6.el9_5 · Red Hat:enterprise_linux:9::crb | Package registry (OSV) |
| red hat:edk2-ovmf | 0:20240524-6.el9_5 · Red Hat:enterprise_linux:9::appstream | Package registry (OSV) |
| red hat:edk2-tools | 0:20240524-6.el9_5 · Red Hat:enterprise_linux:9::crb | Package registry (OSV) |
| red hat:openssl | 1:3.0.7-27.el9 · Red Hat:enterprise_linux:9::baseos | Package registry (OSV) |
| red hat:openssl-debuginfo | 1:3.0.7-27.el9 · Red Hat:enterprise_linux:9::appstream | Package registry (OSV) |
| red hat:openssl-debugsource | 1:3.0.7-27.el9 · Red Hat:enterprise_linux:9::appstream | Package registry (OSV) |
| red hat:openssl-devel | 1:3.0.7-27.el9 · Red Hat:enterprise_linux:9::appstream | Package registry (OSV) |
| red hat:openssl-libs | 1:3.0.7-27.el9 · Red Hat:enterprise_linux:9::baseos | Package registry (OSV) |
| red hat:openssl-libs-debuginfo | 1:3.0.7-27.el9 · Red Hat:enterprise_linux:9::appstream | Package registry (OSV) |
| red hat:openssl-perl | 1:3.0.7-27.el9 · Red Hat:enterprise_linux:9::appstream | Package registry (OSV) |
+8
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
- Bahaa Naamneh (Crosspoint Labs)finder
- Matt Caswellremediation developer
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
- CVE-2022-3358472 days apartUsing a Custom Cipher with NID_undef may lead to NULL encryption60This week
- CVE-2023-0216352 days apartInvalid pointer dereference in d2i_PKCS7 functions31Monitor
- CVE-2023-0217352 days apartNULL dereference validating DSA public key31Monitor
- CVE-2023-0401352 days apartNULL dereference during PKCS7 data verification31Monitor
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
- Someone with local access to the system can trigger it.
- No account or password is required.
- A user must open a link or visit a page.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- none
- Integrity
- none
- Availability
- high · the service can be disrupted
- Attack vector
- Local
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality impact
- None
- Integrity impact
- None
- Availability impact
- High
Weakness class (CWE)
CWE-476 · NULL Pointer DereferenceCVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
MITRE has no CAPEC/ATT&CK mapping for this CWE.
Change log
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
Show all references (14 more)Show less
- github.com/openssl/openssl/commit/775acfdbd0c6af9ac855f34969cdab0c0c90844a
- github.com/openssl/openssl/commit/d135eeab8a5dbf72b3da5240bab9ddb7678dbd2c
- github.openssl.org/openssl/extended-releases/commit/03b3941d60c4bce58fab69a0c22377ab439bc0e8
- github.openssl.org/openssl/extended-releases/commit/aebaa5883e31122b404e450732dc833dc9dee539
- www.openssl.org/news/secadv/20240125.txt
- www.openwall.com/lists/oss-security/2024/03/11/1
- lists.debian.org/debian-lts-announce/2024/10/msg00033.html
- lists.debian.org/debian-lts-announce/2024/11/msg00000.html
- security.netapp.com/advisory/ntap-20240208-0006/
- cert-portal.siemens.com/productcert/html/ssa-265688.html
- cert-portal.siemens.com/productcert/html/ssa-277137.html
- cert-portal.siemens.com/productcert/html/ssa-331112.html
- cert-portal.siemens.com/productcert/html/ssa-769027.html
- cert-portal.siemens.com/productcert/html/ssa-915275.html
Vendor advisories and official records. Exploit/PoC links are deliberately left out.