Description
openssl_encrypt before 1.4.9 fails to validate the memory_cost parameter from identity file protection blocks, allowing attackers to trigger out-of-memory conditions during key derivation. Attackers with write access to local identity stores can craft malicious identity files with excessive memory_cost values that cause the host to crash when unlocking identities before authentication.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| jahlives | openssl_encrypt | < 1.4.9 | 1.4.9 |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| PyPI | openssl-encrypt | < 1.4.9 | 1.4.9 | PYSEC-2026-3965 |
References
- GitHub Security Advisory (GHSA-783h-8q2f-f762) vendor-advisory
- VulnCheck Advisory: openssl_encrypt before 1.4.9 Denial of Service via Unbounded Argon2 third-party-advisory