trafficserver: CVE-2019-9518

Debian Bug report logs - #935314
trafficserver: CVE-2019-9518

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Message #5 received at submit@bugs.debian.org (full text, mbox, reply):

From: Salvatore Bonaccorso <carnil@debian.org>

To: Debian Bug Tracking System <submit@bugs.debian.org>

Subject: trafficserver: CVE-2019-9518

Date: Wed, 21 Aug 2019 16:20:05 +0200

Source: trafficserver
Version: 8.0.3+ds-4
Severity: grave
Tags: security upstream
Justification: user security hole

Hi,

The following vulnerability was published for trafficserver,
additionally to #934887. Filling as separate bug as the fixed version
ranges slightly differ.

CVE-2019-9518[0]:
| Some HTTP/2 implementations are vulnerable to a flood of empty frames,
| potentially leading to a denial of service. The attacker sends a
| stream of frames with an empty payload and without the end-of-stream
| flag. These frames can be DATA, HEADERS, CONTINUATION and/or
| PUSH_PROMISE. The peer spends time processing each frame
| disproportionate to attack bandwidth. This can consume excess CPU.


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-2019-9518
    https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-9518

Please adjust the affected versions in the BTS as needed.

Regards,
Salvatore

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