Fedora 30 : mod_http2 (2019-63ba15cc83) (0-Length Headers Leak) (Data Dribble) (Internal Data Buffering)

high Nessus Plugin ID 128436
New! Vulnerability Priority Rating (VPR)

Tenable calculates a dynamic VPR for every vulnerability. VPR combines vulnerability information with threat intelligence and machine learning algorithms to predict which vulnerabilities are most likely to be exploited in attacks. Read more about what VPR is and how it is different from CVSS.

VPR Score: 5.1

Synopsis

The remote Fedora host is missing a security update.

Description

Rebuilt with newer nghttp2

----

This update includes the latest upstream release of `mod_http2`, version **1.15.3**. Upstream changes include :

- fixes Timeout vs. KeepAliveTimeout behaviour, see PR 63534.

- Fixes stream cleanup when connection throttling is in place.

- Counts stream resets by client on streams initiated by client as cause for connection throttling.

- Header length checks are now logged similar to HTTP/1.1 protocol handler

- Header length is checked also on the merged value from several header instances and results in a 431 response.

- fixing mod_proxy_http2 to support trailers in both directions. See PR 63502.

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website.
Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

Update the affected mod_http2 package.

See Also

https://bodhi.fedoraproject.org/updates/FEDORA-2019-63ba15cc83

Plugin Details

Severity: High

ID: 128436

File Name: fedora_2019-63ba15cc83.nasl

Version: 1.3

Type: local

Agent: unix

Published: 9/3/2019

Updated: 12/31/2019

Dependencies: ssh_get_info.nasl

Risk Information

Risk Factor: High

VPR Score: 5.1

CVSS v2.0

Base Score: 7.8

Temporal Score: 5.8

Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C

Temporal Vector: E:U/RL:OF/RC:C

CVSS v3.0

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:fedoraproject:fedora:mod_http2, cpe:/o:fedoraproject:fedora:30

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 8/30/2019

Vulnerability Publication Date: 8/13/2019

Reference Information

CVE: CVE-2019-9511, CVE-2019-9516, CVE-2019-9517