[DRE-maint] Bug#946312: puma: CVE-2019-16770

[Salvatore Bonaccorso]

Source: puma
Version: 3.12.0-2
Severity: important
Tags: security upstream

Hi,

The following vulnerability was published for puma.

CVE-2019-16770[0]:
| In Puma before version 4.3.2, a poorly-behaved client could use
| keepalive requests to monopolize Puma's reactor and create a denial of
| service attack. If more keepalive connections to Puma are opened than
| there are threads available, additional connections will wait
| permanently if the attacker sends requests frequently enough.


If you fix the vulnerability please also make sure to include the
CVE (Common Vulnerabilities & Exposures) id in your changelog entry.

For further information see:

[0] https://security-tracker.debian.org/tracker/CVE-2019-16770
    https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-16770
[1] https://github.com/puma/puma/security/advisories/GHSA-7xx3-m584-x994
[2] https://github.com/puma/puma/commit/06053e60908074bb38293d4449ea261cb009b53e

Please adjust the affected versions in the BTS as needed.

Regards,
Salvatore