AI and data stack advisories

Severe, 6 weeks1496Projects326

1496 severe, 6 weeks · 326 projects

AWSGHSA-m74w-59v6-c5r8

Issue with configuring session ticket names in s2n-tls

AWS

Published Sep 27, 2022

Medium
Fix: upgrade to v1.3.23 or later
GitHub advisory

A bug in s2n-tls results in the inadvertent copying of memory when configuring session ticket names. As a result, s2n-tls servers which set a session ticket name with length less than 16 bytes can potentially disclose some random memory. Servers which set a 16-byte name are unaffected.

No AWS service was affected by this issue and customers of AWS services do not need to take action. Server applications using s2n-tls with session resumption should update to the most recent version.

All versions of s2n-tls from commit cc339f5 to c947a221e1caadf12a262a6bf548f5f082e096be are affected by this issue. s2n-tls users should fetch s2n-tls commit e6e8b6ad2db5c21a95df05e2367654b3d4c08846.

Affected versions

PackageAffectedFixed in
s2n-tls
Product
< v1.3.23v1.3.23
Details and references

More AWS advisories

All AWS