The version of openssl installed on the remote host is prior to 1.0.2k-16.153. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS-2021-1482 advisory.

    Calls to EVP_CipherUpdate, EVP_EncryptUpdate and EVP_DecryptUpdate may overflow the output length argument     in some cases where the input length is close to the maximum permissible length for an integer on the     platform. In such cases the return value from the function call will be 1 (indicating success), but the     output length value will be negative. This could cause applications to behave incorrectly or crash.
    (CVE-2021-23840)

    The OpenSSL public API function X509_issuer_and_serial_hash() attempts to create a unique hash value based     on the issuer and serial number data contained within an X509 certificate. However it fails to correctly     handle any errors that may occur while parsing the issuer field (which might occur if the issuer field is     maliciously constructed). This may subsequently result in a NULL pointer deref and a crash leading to a     potential denial of service attack. (CVE-2021-23841)

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

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

Detections

Analytics

Amazon Linux AMI : openssl (ALAS-2021-1482)

high Nessus Plugin ID 146818

Version 1.5

Version 1.4

Version 1.3

Version 1.3

Version 1.5 Dec 12, 2024, 9:55 AM CVSS metrics ("Cvssv4 score" set to 0.0) CVSSv2 severity (based on None, severity decreased from "High" to "Low") Detection (updated detection logic) Plugin metadata Plugin Feed: 202412120955
Version 1.4 Jan 19, 2024, 4:20 PM CVSSv2 score source (changed from "CVE-2021-23841" to "CVE-2021-23840") Exploit attributes ("Exploit available" set to "False") Plugin Feed: 202401191620
Version 1.3 Dec 6, 2022, 6:53 AM Reference Plugin Feed: 202212060653
Version 1.3 Jan 19, 2024, 2:06 PM CVSSv2 score source (changed from "CVE-2021-23841" to "CVE-2021-23840") Exploit attributes ("Exploit available" set to "False") Plugin Feed: 202401191406