apache ant CVE-2021-36374 in Apache and Oracle Products
Published on July 14, 2021

Apache Ant ZIP, and ZIP based, archive denial of service vulerability

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When reading a specially crafted ZIP archive, or a derived formats, an Apache Ant build can be made to allocate large amounts of memory that leads to an out of memory error, even for small inputs. This can be used to disrupt builds using Apache Ant. Commonly used derived formats from ZIP archives are for instance JAR files and many office files. Apache Ant prior to 1.9.16 and 1.10.11 were affected.

NVD

Weakness Type

What is a length manipulation Vulnerability?

The software parses a formatted message or structure, but it does not handle or incorrectly handles a length field that is inconsistent with the actual length of the associated data. If an attacker can manipulate the length parameter associated with an input such that it is inconsistent with the actual length of the input, this can be leveraged to cause the target application to behave in unexpected, and possibly, malicious ways. One of the possible motives for doing so is to pass in arbitrarily large input to the application. Another possible motivation is the modification of application state by including invalid data for subsequent properties of the application. Such weaknesses commonly lead to attacks such as buffer overflows and execution of arbitrary code.

CVE-2021-36374 has been classified to as a length manipulation vulnerability or weakness.


Products Associated with CVE-2021-36374

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Affected Versions

Apache Software Foundation Apache Ant:

Exploit Probability

EPSS
0.11%
Percentile
29.95%

EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.