The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learningUpgrade org.apache.uima:uimaj-core
to version 3.5.0 or higher.
org.apache.uima:uimaj-core is a core implementation of the UIMA Java Framework.
Affected versions of this package are vulnerable to Deserialization of Untrusted Data through the CasIOUtils
class. An attacker can execute arbitrary code by deserializing unverified Java objects. This is only exploitable if the user or developer has actively chosen to start a service that is remotely accessible, such as Vinci, or if they use the CasIOUtils
in their own applications and services to parse untrusted serialized CAS data.
This vulnerability can be mitigated by setting up a global or context-specific ObjectInputFilter
if running UIMA on a Java version that supports it.
Note: Java 1.8 does not support the ObjectInputFilter
, so there is no remedy when running on this out-of-support platform.
For Java 9+ platforms, a filter pattern can be configured through the jdk.serialFilter
system property using a semicolon as a separator. It is strongly recommended to upgrade to a recent Java version if you need to secure a UIMA version that is affected by this issue.
Serialization is a process of converting an object into a sequence of bytes which can be persisted to a disk or database or can be sent through streams. The reverse process of creating object from sequence of bytes is called deserialization. Serialization is commonly used for communication (sharing objects between multiple hosts) and persistence (store the object state in a file or a database). It is an integral part of popular protocols like Remote Method Invocation (RMI), Java Management Extension (JMX), Java Messaging System (JMS), Action Message Format (AMF), Java Server Faces (JSF) ViewState, etc.
Deserialization of untrusted data (CWE-502) is when the application deserializes untrusted data without sufficiently verifying that the resulting data will be valid, thus allowing the attacker to control the state or the flow of the execution.