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Debian dla-3641 : jetty9 - security update
critical Nessus Plugin ID 184061
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Synopsis
The remote Debian host is missing one or more security-related updates.Description
The remote Debian 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-3641 advisory.------------------------------------------------------------------------- Debian LTS Advisory DLA-3641-1 [email protected] https://www.debian.org/lts/security/ Markus Koschany October 30, 2023 https://wiki.debian.org/LTS
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Package : jetty9 Version : 9.4.50-4+deb10u1 CVE ID : CVE-2020-27218 CVE-2023-36478 CVE-2023-44487 Debian Bug : 976211
Two remotely exploitable security vulnerabilities were discovered in Jetty 9, a Java based web server and servlet engine.
The HTTP/2 protocol implementation did not sufficiently verify if HPACK header values exceed their size limit. Furthermore the HTTP/2 protocol allowed a denial of service (server resource consumption) because request cancellation can reset many streams quickly. This problem is also known as Rapid Reset Attack.
In addition this version also addresses CVE-2020-27218.
If GZIP request body inflation is enabled and requests from different clients are multiplexed onto a single connection, and if an attacker can send a request with a body that is received entirely but not consumed by the application, then a subsequent request on the same connection will see that body prepended to its body. The attacker will not see any data but may inject data into the body of the subsequent request.
For Debian 10 buster, these problems have been fixed in version 9.4.50-4+deb10u1.
We recommend that you upgrade your jetty9 packages.
For the detailed security status of jetty9 please refer to its security tracker page at:
https://security-tracker.debian.org/tracker/jetty9
Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS Attachment:
signature.asc Description: This is a digitally signed message part
Tenable has extracted the preceding description block directly from the Debian security advisory.
Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.
Solution
Upgrade the jetty9 packages.See Also
https://security-tracker.debian.org/tracker/source-package/jetty9
https://security-tracker.debian.org/tracker/CVE-2020-27218
https://security-tracker.debian.org/tracker/CVE-2023-36478
Plugin Details
Severity: Critical
ID: 184061
File Name: debian_DLA-3641.nasl
Version: 1.3
Type: local
Agent: unix
Family: Debian Local Security Checks
Published: 10/31/2023
Updated: 1/22/2025
Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 6.7
CVSS v2
Risk Factor: Medium
Base Score: 5.8
Temporal Score: 4.8
Vector: CVSS2#AV:N/AC:M/Au:N/C:N/I:P/A:P
CVSS Score Source: CVE-2020-27218
CVSS v3
Risk Factor: Medium
Base Score: 4.8
Temporal Score: 4.5
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L
Temporal Vector: CVSS:3.0/E:F/RL:O/RC:C
CVSS v4
Risk Factor: Critical
Base Score: 9.3
Threat Score: 9.3
Threat Vector: CVSS:4.0/E:A
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CVSS Score Source: CVE-2023-44487
Vulnerability Information
CPE: cpe:/o:debian:debian_linux:10.0, p-cpe:/a:debian:debian_linux:jetty9, p-cpe:/a:debian:debian_linux:libjetty9-java, p-cpe:/a:debian:debian_linux:libjetty9-extra-java
Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 10/30/2023
Vulnerability Publication Date: 11/28/2020
CISA Known Exploited Vulnerability Due Dates: 10/31/2023