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GHSA-2528-jw5q-ww88high7.5

phpseclib: guardrails needed on isPrime and randomPrime

Impact

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

Source excerpt · OSV

Affected packages

Start with the recorded fix for your release branch. Check your installed version and test compatibility before upgrading. Fixing this advisory does not rule out other vulnerabilities in the release.

phpseclib/phpseclib Packagist
Affected rangeRecorded fix
From 0.1.1 before 1.0.23Ecosystem versions1.0.23
From 2.0.0 before 2.0.47Ecosystem versions2.0.47
From 3.0.0 before 3.0.36Ecosystem versions3.0.36

Version evidence: OSV · GHSA-2528-jw5q-ww88

View original version evidence (105 explicit versions)

Original source description

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

References