The remote SUSE Linux SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2023:3179-1 advisory.

  - A timing based side channel exists in the OpenSSL RSA Decryption implementation which could be sufficient     to recover a plaintext across a network in a Bleichenbacher style attack. To achieve a successful     decryption an attacker would have to be able to send a very large number of trial messages for decryption.
    The vulnerability affects all RSA padding modes: PKCS#1 v1.5, RSA-OEAP and RSASVE. For example, in a TLS     connection, RSA is commonly used by a client to send an encrypted pre-master secret to the server. An     attacker that had observed a genuine connection between a client and a server could use this flaw to send     trial messages to the server and record the time taken to process them. After a sufficiently large number     of messages the attacker could recover the pre-master secret used for the original connection and thus be     able to decrypt the application data sent over that connection. (CVE-2022-4304)

  - Issue summary: Checking excessively long DH keys or parameters may be very slow. Impact summary:
    Applications that use the functions DH_check(), DH_check_ex() or EVP_PKEY_param_check() to check a DH key     or DH parameters may experience long delays. Where the key or parameters that are being checked have been     obtained from an untrusted source this may lead to a Denial of Service. The function DH_check() performs     various checks on DH parameters. One of those checks confirms that the modulus ('p' parameter) is not too     large. Trying to use a very large modulus is slow and OpenSSL will not normally use a modulus which is     over 10,000 bits in length. However the DH_check() function checks numerous aspects of the key or     parameters that have been supplied. Some of those checks use the supplied modulus value even if it has     already been found to be too large. An application that calls DH_check() and supplies a key or parameters     obtained from an untrusted source could be vulernable to a Denial of Service attack. The function     DH_check() is itself called by a number of other OpenSSL functions. An application calling any of those     other functions may similarly be affected. The other functions affected by this are DH_check_ex() and     EVP_PKEY_param_check(). Also vulnerable are the OpenSSL dhparam and pkeyparam command line applications     when using the '-check' option. The OpenSSL SSL/TLS implementation is not affected by this issue. The     OpenSSL 3.0 and 3.1 FIPS providers are not affected by this issue. (CVE-2023-3446)

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

Detections

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SUSE SLES15 Security Update : openssl-1_1 (SUSE-SU-2023:3179-1)

medium Nessus Plugin ID 179355

Version 1.2

Version 1.1

Version 1.0

Version 1.2 Sep 15, 2023, 10:10 AM IAVM reference Plugin Feed: 202309151010
Version 1.1 Aug 11, 2023, 2:16 PM Reference Plugin Feed: 202308111416
Version 1.0 Aug 4, 2023, 8:03 AM New Plugin Feed: 202308040803