USN-6148-1: SNI Proxy vulnerability

Publication date

12 June 2023

Overview

SNI Proxy could be made to crash or run programs if it received specially crafted input.


Packages

  • sniproxy - Transparent TLS and HTTP layer 4 proxy with SNI support

Details

It was discovered that SNI Proxy did not properly handle wildcard backend
hosts. An attacker could possibly use this issue to cause a buffer overflow,
resulting in a denial of service, or arbitrary code execution.

It was discovered that SNI Proxy did not properly handle wildcard backend
hosts. An attacker could possibly use this issue to cause a buffer overflow,
resulting in a denial of service, or arbitrary code execution.

Update instructions

In general, a standard system update will make all the necessary changes.

Learn more about how to get the fixes.

The problem can be corrected by updating your system to the following package versions:

Ubuntu Release Package Version
23.04 lunar sniproxy –  0.6.0-2ubuntu0.23.04.1
22.10 kinetic sniproxy –  0.6.0-2ubuntu0.22.10.1
22.04 jammy sniproxy –  0.6.0-2ubuntu0.22.04.1
20.04 focal sniproxy –  0.6.0-1ubuntu0.1
18.04 bionic sniproxy –  0.5.0-2ubuntu0.1~esm1  

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