Serv

Release date: April 17, 2024

Here's what's new in Serv-U File Server 15.4.2.

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Serv-U now supports Windows Server 2022.

Database groups can now be synchronized for multi-instance deployments.

Improvements have been made to the password recovery process for Serv-U.

Serv-U 15.4.2 contains security improvements such as upgrades to Nova 15, OpenSSL 3.0.13, and zlib 1.3.1 and new encryption of private keys.

New Web Client and File share applications now leverage Angular 16 and stronger Content Security Policy definition.

Serv-U can now be installed in STIG environments through a new installation process. See Requesting a Serv-U installation in a STIG environment for details.

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SolarWinds would like to thank our Security Researchers below for reporting on the issue in a responsible manner and working with our security, product, and engineering teams to fix the vulnerability.

Issue summary: Generating excessively long X9.42 DH keys or checking excessively long X9.42 DH keys or parameters may be very slow.

Impact summary: Applications that use the functions DH_generate_key() to generate an X9.42 DH key may experience long delays. Likewise, applications that use DH_check_pub_key(), DH_check_pub_key_ex() or EVP_PKEY_public_check() to check an X9.42 DH key or X9.42 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. While DH_check() performs all the necessary checks (as of CVE-2023-3817), DH_check_pub_key() doesn't make any of these checks, and is therefore vulnerable for excessively large P and Q parameters. Likewise, while DH_generate_key() performs a check for an excessively large P, it doesn't check for an excessively large Q. An application that calls DH_generate_key() or DH_check_pub_key() and supplies a key or parameters obtained from an untrusted source could be vulnerable to a Denial of Service attack. DH_generate_key() and DH_check_pub_key() are also 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_pub_key_ex(), EVP_PKEY_public_check(), and EVP_PKEY_generate(). Also vulnerable are the OpenSSL pkey command line application when using the "-pubcheck" option, as well as the OpenSSL genpkey command line application. 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.

Issue summary: Processing a maliciously formatted PKCS12 file may lead OpenSSL to crash leading to a potential Denial of Service attack.

Impact summary: Applications loading files in the PKCS12 format from untrusted sources might terminate abruptly. A file in PKCS12 format can contain certificates and keys and may come from an untrusted source. The PKCS12 specification allows certain fields to be NULL, but OpenSSL does not correctly check for this case. This can lead to a NULL pointer dereference that results in OpenSSL crashing. If an application processes PKCS12 files from an untrusted source using the OpenSSL APIs then that application will be vulnerable to this issue. OpenSSL APIs that are vulnerable to this are: PKCS12_parse(), PKCS12_unpack_p7data(), PKCS12_unpack_p7encdata(), PKCS12_unpack_authsafes() and PKCS12_newpass(). We have also fixed a similar issue in SMIME_write_PKCS7(). However since this function is related to writing data we do not consider it security significant. The FIPS modules in 3.2, 3.1 and 3.0 are not affected by this issue.

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For new installations, you can download the installation file from the Serv-U product page on https://www.solarwinds.com or from the Customer Portal. For more information, see Install the SolarWinds Serv-U File Server.

For more information about upgrades, see Upgrade Serv-U File Server.

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See the End of Life Policy for information about SolarWinds product life cycle phases. To see EoL dates for earlier Serv-U versions, see Serv-U release history.

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The following platforms and features are still supported in the current release. However, they will be unsupported in a future release. Plan on upgrading deprecated platforms, and avoid using deprecated features.

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