7.8

CVE-2018-20843

Exploit
In libexpat in Expat before 2.2.7, XML input including XML names that contain a large number of colons could make the XML parser consume a high amount of RAM and CPU resources while processing (enough to be usable for denial-of-service attacks).
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Libexpat Project ≫ Libexpat Version < 2.2.7
Canonical ≫ Ubuntu Linux Version 12.04 SwEdition -
Canonical ≫ Ubuntu Linux Version 14.04 SwEdition esm
Canonical ≫ Ubuntu Linux Version 16.04 SwEdition lts
Canonical ≫ Ubuntu Linux Version 18.04 SwEdition lts
Canonical ≫ Ubuntu Linux Version 18.10
Canonical ≫ Ubuntu Linux Version 19.04
Debian ≫ Debian Linux Version 8.0
Debian ≫ Debian Linux Version 9.0
Fedoraproject ≫ Fedora Version 29
Fedoraproject ≫ Fedora Version 30
Opensuse ≫ Leap Version 15.0
Opensuse ≫ Leap Version 15.1
Oracle ≫ Hospitality Res 3700 Version >= 5.7 <= 5.7.6
Oracle ≫ HTTP Server Version 12.1.3.0
Oracle ≫ HTTP Server Version 12.2.1.4.0
Oracle ≫ Outside In Technology Version 8.5.4
Oracle ≫ Outside In Technology Version 8.5.5
Tenable ≫ Nessus Version < 8.15.0
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 7.11% 0.934
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
NIST 7.5 3.9 3.6
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NIST 7.8 10 6.9
AV:N/AC:L/Au:N/C:N/I:N/A:C
CISA-ADP 7.5 3.9 3.6
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-611 Improper Restriction of XML External Entity Reference

The product processes an XML document that can contain XML entities with URIs that resolve to documents outside of the intended sphere of control, causing the product to embed incorrect documents into its output.

https://www.oracle.com/security-alerts/cpuoct2021.html
Patch
Third Party Advisory
https://www.oracle.com/security-alerts/cpuapr2020.html
Patch
Third Party Advisory
https://www.oracle.com/security-alerts/cpuoct2020.html
Patch
Third Party Advisory
https://www.oracle.com/security-alerts/cpuApr2021.html
Patch
Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00039.html
Third Party Advisory
Mailing List
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=5226
Third Party Advisory
Issue Tracking
https://github.com/libexpat/libexpat/blob/R_2_2_7/expat/Changes
Third Party Advisory
Release Notes
https://github.com/libexpat/libexpat/issues/186
Patch
Third Party Advisory
Issue Tracking
https://github.com/libexpat/libexpat/pull/262
Patch
Third Party Advisory
Exploit
https://github.com/libexpat/libexpat/pull/262/commits/11f8838bf99ea0a6f0b76f9760c43704d00c4ff6
Patch
Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/06/msg00028.html
Third Party Advisory
Mailing List
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CEJJSQSG3KSUQY4FPVHZ7ZTT7FORMFVD/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IDAUGEB3TUP6NEKJDBUBZX7N5OAUOOOK/
https://seclists.org/bugtraq/2019/Jun/39
Third Party Advisory
Mailing List
https://security.gentoo.org/glsa/201911-08
Third Party Advisory
https://security.netapp.com/advisory/ntap-20190703-0001/
Third Party Advisory
https://support.f5.com/csp/article/K51011533
Third Party Advisory
https://usn.ubuntu.com/4040-1/
Third Party Advisory
https://usn.ubuntu.com/4040-2/
Third Party Advisory
https://www.debian.org/security/2019/dsa-4472
Third Party Advisory
https://www.tenable.com/security/tns-2021-11
Third Party Advisory