Integer overflow vulnerability in tool_operate.c in curl 7.65.2 via a large value as the retry delay. NOTE: many parties report that this has no direct security impact on the curl user; however, it may (in theory) cause a denial of service to associated systems or networks if, for example, --retry-delay is misinterpreted as a value much smaller than what was intended. This is not especially plausible because the overflow only happens if the user was trying to specify that curl should wait weeks (or longer) before trying to recover from a transient error.

Integer overflow vulnerability in tool_operate.c in curl 7.65.2 via a large value as the retry delay. NOTE: many parties report that this has no direct security impact on the curl user; however, it may (in theory) cause a denial of service to associated systems or networks if, for example, --retry-delay is misinterpreted as a value much smaller than what was intended. This is not especially plausible because the overflow only happens if the user was trying to specify that curl should wait weeks (or longer) before trying to recover from a transient error.

This plugin only works with Tenable.ot.
Please visit https://www.tenable.com/products/tenable-ot for more information.

The version of curl installed on the remote host is prior to 8.2.1-1. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2023-2230 advisory.

    Integer overflow vulnerability in tool_operate.c in curl 7.65.2 via crafted value as the retry delay.
    (CVE-2020-19909)

    libcurl offers a feature to verify an SSH server's public key using a SHA 256 hash. When this check fails,     libcurl would free the memory for the fingerprint before it returns an error message containing the (now     freed) hash.

    This flaw risks inserting sensitive heap-based data into the error message that might be shown to users or     otherwise get leaked and revealed. (CVE-2023-28319)

    curl supports matching of wildcard patterns when listed as Subject Alternative Name in TLS server     certificates. curl can be built to use its own name matching function for TLS rather than one provided by     a TLS library. This private wildcard matching function would match IDN (International Domain Name) hosts     incorrectly and could as a result accept patterns that otherwise should mismatch.

    IDN hostnames are converted to puny code before used for certificate checks. Puny coded names always start     with xn-- and should not be allowed to pattern match, but the wildcard check in curl could still check for     x*, which would match even though the IDN name most likely contained nothing even resembling an x.
    (CVE-2023-28321)

    When doing HTTP(S) transfers, libcurl might erroneously use the read callback (CURLOPT_READFUNCTION) to     ask for data to send, even when the CURLOPT_POSTFIELDS option has been set, if the same handle previously     was used to issue a PUT request which used that callback.

    This flaw may surprise the application and cause it to misbehave and either send off the wrong data or use     memory after free or similar in the second transfer.

    The problem exists in the logic for a reused handle when it is (expected to be) changed from a PUT to a     POST. (CVE-2023-28322)

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.

ID	Name	Product	Family	Type	Severity
504190	Siemens SIMATIC S7-1500 Integer Overflow or Wraparound (CVE-2020-19909)	Tenable OT Security	Tenable.ot	Remote	low
181157	Amazon Linux 2 : curl (ALAS-2023-2230)	Nessus	Amazon Linux Local Security Checks	Local	high

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CVE-2020-19909

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Tenable Plugins

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high