Scala subject to file deletion, code execution due to Java deserialization chain with LazyList object deserialization
Critical severity
GitHub Reviewed
Published
Sep 25, 2022
to the GitHub Advisory Database
•
Updated Jan 31, 2023
Package
Affected versions
>= 2.13.0, < 2.13.9
Patched versions
2.13.9
Description
Published by the National Vulnerability Database
Sep 23, 2022
Published to the GitHub Advisory Database
Sep 25, 2022
Reviewed
Sep 28, 2022
Last updated
Jan 31, 2023
Credits
-
oleschoenburg Analyst
-
lukaseder Analyst
-
alexkvak Analyst
-
fernandomora Analyst
-
joseraya Analyst
-
adangel Analyst
Scala 2.13.x before 2.13.9 has a Java deserialization chain in its JAR file. On its own, it cannot be exploited. There is only a risk in conjunction with LazyList object deserialization within an application. In such situations, it allows attackers to erase contents of arbitrary files, make network connections, or possibly run arbitrary code (specifically, Function0 functions) via a gadget chain.
References