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Jenkins Enterprise and Operations Center < 2.277.43.0.3 / 2.319.1.5 Multiple Vulnerabilities (CloudBees Security Advisory 2021-12-01)

Description

The version of Jenkins Enterprise or Jenkins Operations Center running on the remote web server is 2.277.x prior to 2.277.43.0.3, or 2.x prior to 2.319.1.5. It is, therefore, affected by a multiple vulnerabilities, including the following: - When reading a specially crafted TAR archive, Compress can be made to allocate large amounts of memory that finally leads to an out of memory error even for very small inputs. This could be used to mount a denial of service attack against services that use Compress' tar package. (CVE-2021-35517) - jsoup is a Java library for working with HTML. Those using jsoup versions prior to 1.14.2 to parse untrusted HTML or XML may be vulnerable to DOS attacks. If the parser is run on user supplied input, an attacker may supply content that causes the parser to get stuck (loop indefinitely until cancelled), to complete more slowly than usual, or to throw an unexpected exception. This effect may support a denial of service attack. The issue is patched in version 1.14.2. There are a few available workarounds. Users may rate limit input parsing, limit the size of inputs based on system resources, and/or implement thread watchdogs to cap and timeout parse runtimes. (CVE-2021-37714) Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.


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