Debian DSA-4508-1 : h2o - security update (Ping Flood) (Reset Flood) (Settings Flood)

high Nessus Plugin ID 128181
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Synopsis

The remote Debian host is missing a security-related update.

Description

Three vulnerabilities were discovered in the HTTP/2 code of the H2O HTTP server, which could result in denial of service.

Solution

Upgrade the h2o packages.

For the stable distribution (buster), these problems have been fixed in version 2.2.5+dfsg2-2+deb10u1.

See Also

https://security-tracker.debian.org/tracker/source-package/h2o

https://packages.debian.org/source/buster/h2o

https://www.debian.org/security/2019/dsa-4508

Plugin Details

Severity: High

ID: 128181

File Name: debian_DSA-4508.nasl

Version: 1.2

Type: local

Agent: unix

Published: 8/27/2019

Updated: 12/31/2019

Dependencies: ssh_get_info.nasl

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: High

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

Risk Factor: High

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:debian:debian_linux:h2o, cpe:/o:debian:debian_linux:10.0

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Ease: No known exploits are available

Patch Publication Date: 8/24/2019

Vulnerability Publication Date: 8/13/2019

Reference Information

CVE: CVE-2019-9512, CVE-2019-9514, CVE-2019-9515

DSA: 4508