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CVE

CVE-2021-37136

Bzip2Decoder doesn't allow setting size restrictions for decompressed data

Description

Impact

The Bzip2 decompression decoder function doesn't allow setting size restrictions on the decompressed output data (which affects the allocation size used during decompression).

All users of Bzip2Decoder are affected. The malicious input can trigger an OOME and so a DoS attack

Workarounds

No workarounds other than not using the Bzip2Decoder

References

Relevant code areas:

https://github.com/netty/netty/blob/netty-4.1.67.Final/codec/src/main/java/io/netty/handler/codec/compression/Bzip2Decoder.java#L80

https://github.com/netty/netty/blob/netty-4.1.67.Final/codec/src/main/java/io/netty/handler/codec/compression/Bzip2Decoder.java#L294

https://github.com/netty/netty/blob/netty-4.1.67.Final/codec/src/main/java/io/netty/handler/codec/compression/Bzip2Decoder.java#L305

Base CVSS

7.5

EPSS Score

0.22%

Introduced Version

0

Fix Available

4.1.68.Final

Fix without Upgrading

Available Patches

Package

CVEs Fixed

Lines of Code Changed

io.netty:netty-codec

References

https://github.com/netty/netty/blob/4.1/codec/src/main/java/io/netty/handler/codec/compression/Bzip2Decoder.java#L80

https://security.netapp.com/advisory/ntap-20220210-0012

https://www.oracle.com/security-alerts/cpujan2022.html

https://lists.apache.org/thread.html/r75490c61c2cb7b6ae2c81238fd52ae13636c60435abcd732d41531a0@%3Ccommits.druid.apache.org%3E

https://www.debian.org/security/2023/dsa-5316

https://github.com/netty/netty

https://www.oracle.com/security-alerts/cpuapr2022.html

https://lists.apache.org/thread.html/r06a145c9bd41a7344da242cef07977b24abe3349161ede948e30913d@%3Ccommits.druid.apache.org%3E

https://nvd.nist.gov/vuln/detail/CVE-2021-37136

https://lists.apache.org/thread.html/r5e05eba32476c580412f9fbdfc9b8782d5b40558018ac4ac07192a04@%3Ccommits.druid.apache.org%3E

https://github.com/netty/netty/blob/4.1/codec/src/main/java/io/netty/handler/codec/compression/Bzip2Decoder.java#L294

https://github.com/netty/netty/commit/41d3d61a61608f2223bb364955ab2045dd5e4020

https://lists.debian.org/debian-lts-announce/2023/01/msg00008.html

https://lists.apache.org/thread.html/rfb2bf8597e53364ccab212fbcbb2a4e9f0a9e1429b1dc08023c6868e@%3Cdev.tinkerpop.apache.org%3E

https://github.com/netty/netty/security/advisories/GHSA-grg4-wf29-r9vv

https://lists.apache.org/thread.html/rd262f59b1586a108e320e5c966feeafbb1b8cdc96965debc7cc10b16@%3Ccommits.druid.apache.org%3E

https://lists.apache.org/thread.html/r5406eaf3b07577d233b9f07cfc8f26e28369e6bab5edfcab41f28abb@%3Ccommits.druid.apache.org%3E

https://github.com/netty/netty/blob/4.1/codec/src/main/java/io/netty/handler/codec/compression/Bzip2Decoder.java#L305

https://www.oracle.com/security-alerts/cpujul2022.html

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