The version of OpenSSL installed on the remote host is prior to 1.1.1j. It is, therefore, affected by multiple vulnerabilities as referenced in the 1.1.1j advisory.

  - 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. The function X509_issuer_and_serial_hash() is never directly called by     OpenSSL itself so applications are only vulnerable if they use this function directly and they use it on     certificates that may have been obtained from untrusted sources. OpenSSL versions 1.1.1i and below are     affected by this issue. Users of these versions should upgrade to OpenSSL 1.1.1j. OpenSSL versions 1.0.2x     and below are affected by this issue. However OpenSSL 1.0.2 is out of support and no longer receiving     public updates. Premium support customers of OpenSSL 1.0.2 should upgrade to 1.0.2y. Other users should     upgrade to 1.1.1j. Fixed in OpenSSL 1.1.1j (Affected 1.1.1-1.1.1i). Fixed in OpenSSL 1.0.2y (Affected     1.0.2-1.0.2x). (CVE-2021-23841)

  - 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 permissable 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.
    OpenSSL versions 1.1.1i and below are affected by this issue. Users of these versions should upgrade to     OpenSSL 1.1.1j. OpenSSL versions 1.0.2x and below are affected by this issue. However OpenSSL 1.0.2 is out     of support and no longer receiving public updates. Premium support customers of OpenSSL 1.0.2 should     upgrade to 1.0.2y. Other users should upgrade to 1.1.1j. Fixed in OpenSSL 1.1.1j (Affected 1.1.1-1.1.1i).
    Fixed in OpenSSL 1.0.2y (Affected 1.0.2-1.0.2x). (CVE-2021-23840)

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

Detections

Analytics

OpenSSL 1.1.1 < 1.1.1j Multiple Vulnerabilities

high Nessus Plugin ID 148402

Version 1.9

Version 1.8

Version 1.7

Version 1.6

Version 1.5

Version 1.4

Version 1.9 Oct 23, 2024, 3:47 PM Plugin metadata (update thorough_tests attribute) Plugin Feed: 202410231547
Version 1.8 Oct 7, 2024, 1:27 PM Plugin categorization (adding new 'component' to component plugins) Plugin Feed: 202410071327
Version 1.7 Jun 7, 2024, 4:47 PM Detection (updated detection logic) Plugin metadata Plugin Feed: 202406071647
Version 1.6 Jan 5, 2024, 3:16 PM CVSSv2 score source (changed from "CVE-2021-23841" to "CVE-2021-23840") Exploit attributes ("Exploit available" set to "False") Plugin Feed: 202401051516
Version 1.5 Aug 8, 2023, 5:11 PM Plugin categorization Plugin requirements Plugin Feed: 202308081711
Version 1.4 Dec 6, 2022, 1:01 AM Reference Plugin Feed: 202212060101