CVE-2018-20843

Name
CVE-2018-20843
Description
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).
NVD Severity
unknown
Other trackers
CVE, NVD, CERT, CVE Details, CIRCL, Arch Linux, Debian, Red Hat, Ubuntu, Gentoo, SUSE (Bugzilla), SUSE (CVE), Mageia
Mailing lists
oss-security, full-disclosure, bugtraq
Exploits
Exploit DB, Metasploit
Forges
GitHub (code, issues), Aports (code, issues)

References

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

Match rules

CPE URI Source package Min version Max version
cpe:2.3:a:libexpat_project:libexpat:*:*:*:*:*:*:*:* libexpat >= None < 2.2.7

Vulnerable and fixed packages

Source package Branch Version Maintainer Status
expat edge-main 2.2.7-r0 None fixed
expat 3.22-main 2.2.7-r0 None fixed
expat 3.21-main 2.2.7-r0 None fixed
expat 3.20-main 2.2.7-r0 None fixed
expat 3.19-main 2.2.7-r0 None fixed
expat 3.18-main 2.2.7-r0 None fixed
expat 3.17-main 2.2.7-r0 None fixed
expat 3.12-main 2.2.7-r0 None fixed
expat 3.11-main 2.2.7-r0 None fixed
expat 3.10-main 2.2.7-r0 None fixed