[USN-6148-1] SNI Proxy vulnerability

Paulo Flabiano Smorigo pfsmorigo at canonical.com
Mon Jun 12 14:14:04 UTC 2023

Ubuntu Security Notice USN-6148-1
June 12, 2023

sniproxy vulnerability

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 23.04
- Ubuntu 22.10
- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS (Available with Ubuntu Pro)


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

Software Description:
- sniproxy: Transparent TLS and HTTP layer 4 proxy with SNI support


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:

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

Ubuntu 23.04:
  sniproxy                        0.6.0-2ubuntu0.23.04.1

Ubuntu 22.10:
  sniproxy                        0.6.0-2ubuntu0.22.10.1

Ubuntu 22.04 LTS:
  sniproxy                        0.6.0-2ubuntu0.22.04.1

Ubuntu 20.04 LTS:
  sniproxy                        0.6.0-1ubuntu0.1

Ubuntu 18.04 LTS (Available with Ubuntu Pro):
  sniproxy                        0.5.0-2ubuntu0.1~esm1

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


Package Information:
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 833 bytes
Desc: not available
URL: <https://lists.ubuntu.com/archives/ubuntu-security-announce/attachments/20230612/e415a9c1/attachment.sig>

More information about the ubuntu-security-announce mailing list