It is, therefore, affected by a vulnerability as referenced in the ALAS2023-2024-640 advisory.

    Issue summary: Some non-default TLS server configurations can cause unboundedmemory growth when processing     TLSv1.3 sessions

    Impact summary: An attacker may exploit certain server configurations to triggerunbounded memory growth     that would lead to a Denial of Service

    This problem can occur in TLSv1.3 if the non-default SSL_OP_NO_TICKET option isbeing used (but not if     early_data support is also configured and the defaultanti-replay protection is in use). In this case,     under certain conditions, thesession cache can get into an incorrect state and it will fail to flush     properlyas it fills. The session cache will continue to grow in an unbounded manner. Amalicious client     could deliberately create the scenario for this failure toforce a Denial of Service. It may also happen by     accident in normal operation.

    This issue only affects TLS servers supporting TLSv1.3. It does not affect TLSclients.

    The FIPS modules in 3.2, 3.1 and 3.0 are not affected by this issue. OpenSSL1.0.2 is also not affected by     this issue. (CVE-2024-2511)

Tenable has extracted the preceding description block directly from the tested product security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Detections

Analytics

Amazon Linux 2023 : openssl, openssl-devel, openssl-libs (ALAS2023-2024-640)

medium Nessus Plugin ID 200263

Version 1.1