CVE-2024-26130
What it is
cryptography is a package designed to expose cryptographic primitives and recipes to Python developers. Starting in version 38.0.0 and prior to version 42.0.4, if `pkcs12.serialize_key_and_certificates` is called with both a certificate whose public key did not match the provided private key and an `encryption_algorithm` with `hmac_hash` set (via `PrivateFormat.PKCS12.encryption_builder().hmac_hash(...)`, then a NULL pointer dereference would occur, crashing the Python process. This has been resolved in version 42.0.4, the first version in which a `ValueError` is properly raised.
At a glance
- Exploitability
- Can be exploited over the network without logging in. High risk of service disruption.
- Exploit odds
- 0.8% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.8% in the next 30 days (EPSS).
- Severity: 7.5 HIGH (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.8% · EPSS, next 30 days
- Weakness
- CWE-476 · NULL pointer dereference
- Record status
- Analyzed
Affected
- cryptography.io Cryptography < 42.0.4
Attack profile CVSS 3.1 · 7.5
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Raw vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2024-26130.md and follow it. Check whether this project is affected by CVE-2024-26130. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://github.com/pyca/cryptography/commit/97d231672763cdb5959a3b191e692a362f1b9e55
- https://github.com/pyca/cryptography/pull/10423
- https://github.com/pyca/cryptography/security/advisories/GHSA-6vqw-3v5j-54x4
- https://github.com/pyca/cryptography/commit/97d231672763cdb5959a3b191e692a362f1b9e55
- https://github.com/pyca/cryptography/pull/10423
- https://github.com/pyca/cryptography/security/advisories/GHSA-6vqw-3v5j-54x4
References
- https://github.com/pyca/cryptography/commit/97d231672763cdb5959a3b191e692a362f1b9e55
- https://github.com/pyca/cryptography/pull/10423
- https://github.com/pyca/cryptography/security/advisories/GHSA-6vqw-3v5j-54x4
- https://github.com/pyca/cryptography/commit/97d231672763cdb5959a3b191e692a362f1b9e55
- https://github.com/pyca/cryptography/pull/10423
- https://github.com/pyca/cryptography/security/advisories/GHSA-6vqw-3v5j-54x4