Slackware Linux 15.0 / current nghttp2 Vulnerability (SSA:2024-095-02)

medium Nessus Plugin ID 192934


The remote Slackware Linux host is missing a security update to nghttp2.


The version of nghttp2 installed on the remote host is prior to 1.61.0. It is, therefore, affected by a vulnerability as referenced in the SSA:2024-095-02 advisory.

- nghttp2 is an implementation of the Hypertext Transfer Protocol version 2 in C. The nghttp2 library prior to version 1.61.0 keeps reading the unbounded number of HTTP/2 CONTINUATION frames even after a stream is reset to keep HPACK context in sync. This causes excessive CPU usage to decode HPACK stream. nghttp2 v1.61.0 mitigates this vulnerability by limiting the number of CONTINUATION frames it accepts per stream.
There is no workaround for this vulnerability. (CVE-2024-28182)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.


Upgrade the affected nghttp2 package.

See Also

Plugin Details

Severity: Medium

ID: 192934

File Name: Slackware_SSA_2024-095-02.nasl

Version: 1.0

Type: local

Published: 4/4/2024

Updated: 4/4/2024

Supported Sensors: Nessus

Risk Information


Risk Factor: Low

Score: 2.2


Risk Factor: Medium

Base Score: 6.4

Temporal Score: 4.7

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:N

CVSS Score Source: CVE-2024-28182


Risk Factor: Medium

Base Score: 5.3

Temporal Score: 4.6

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

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:slackware:slackware_linux:nghttp2, cpe:/o:slackware:slackware_linux, cpe:/o:slackware:slackware_linux:15.0

Required KB Items: Host/local_checks_enabled, Host/Slackware/release, Host/Slackware/packages

Exploit Ease: No known exploits are available

Patch Publication Date: 4/4/2024

Vulnerability Publication Date: 4/4/2024

Reference Information

CVE: CVE-2024-28182