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Database

Asymmetric denial of service In phpseclib

Description

phpseclib: guardrails needed on isPrime and randomPrime

Impact

Anyone trying to generate a prime and testing the primality of a number.

Patches

https://github.com/phpseclib/phpseclib/commit/ad5dbdf2129f5e0fb644637770b7f33de8ca8575

Workarounds

Using the GMP extension would probably help, assuming that one has its own guardrails.

Resources

https://github.com/phpseclib/phpseclib/commit/ad5dbdf2129f5e0fb644637770b7f33de8ca8575 https://www.usenix.org/system/files/conference/usenixsecurity25/sec25cycle1-prepub-599-shi-bing.pdf

Mitigation

Update Impact

Minimal update. May introduce new vulnerabilities or breaking changes.

Ecosystem
Package
Affected version
Patched versions

1-10 of 11

10

Aliases

1. CVE-2024-273542. NVD-2024-273543. OSV-DEBIAN-2024-273544. OSV-2024-273545. GHSA-2528-jw5q-ww886. GCVE-2024-273547. SECURITY-TRACKER-CVE-2024-273548. lists.debian.org9. lists.debian.org

References

1. https://github.com/phpseclib/phpseclib/security/advisories/GHSA-2528-jw5q-ww882. https://github.com/phpseclib/phpseclib/commit/2870c8fab3f132d2ed40a66c97a36fe5ab6256983. https://github.com/phpseclib/phpseclib/commit/ad5dbdf2129f5e0fb644637770b7f33de8ca85754. https://github.com/phpseclib/phpseclib/commit/c55b75199ec8d12cec6eadf6da99da4a3712fe565. https://gist.github.com/katzj/ee72f3c2a00590812b2ea3c0c8890e0b6. https://github.com/FriendsOfPHP/security-advisories/blob/master/phpseclib/phpseclib/CVE-2024-27354.yaml7. https://github.com/phpseclib/phpseclib/blob/master/phpseclib/Math/PrimeField.php#L49

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