Description
Netty is a network application framework for development of protocol servers and clients. In versions 4.2.0.Final through 4.2.15.Final and 4.1.0.Final through 4.1.135.Final, any caller that can deliver bytes to a Netty channel pipeline containing `XmlDecoder` can send XML with a `DOCTYPE` declaration to an `AsyncXMLInputFactory` instantiated with no security configuration, leaving DTD and entity handling active depending on Aalto XML async parser behavior and creating conditional XML external entity risk. This issue is fixed in versions 4.1.136.Final and 4.2.16.Final.
CVSS breakdown
CVSS 4.0
Attack Vector
Network
Attack Complexity
Low
Attack Requirements
Present
Privileges Required
None
User Interaction
None
Confidentiality (Vulnerable System)
High
Integrity (Vulnerable System)
None
Availability (Vulnerable System)
Low
Confidentiality (Subsequent System)
None
Integrity (Subsequent System)
None
Availability (Subsequent System)
None
CVSS 3.1
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected products
- netty / netty>= 4.2.0.Final, < 4.2.16.Final – >= 4.2.0.Final, < 4.2.16.Final
- netty / netty>= 4.1.0.Final, < 4.1.136.Final – >= 4.1.0.Final, < 4.1.136.Final
- netty / netty4.1.0 – 4.1.136
References
- VENDOR_ADVISORYhttps://github.com/netty/netty/security/advisories/GHSA-4qhr-g3c6-fcfx
- PATCHhttps://github.com/netty/netty/commit/5b68c61f37aa4a3045cba624cbea239655c9003b
- PATCHhttps://github.com/netty/netty/commit/bb2ff68a1fb71cb4b0eb9a9e17b66c52aff680c6
- PATCHhttps://github.com/netty/netty/releases/tag/netty-4.1.136.Final
- PATCHhttps://github.com/netty/netty/releases/tag/netty-4.2.16.Final
Updated 17m ago · 8 sources