CVEvulnerability
CVE-2018-20843
7.5 HIGH
Official page ↗
- Status
- Modified
- Published
- 2019-06-24
- Last modified
- 2026-10-14
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CVSS 2.0 ([email protected])
- 7.8 HIGH — AV:N/AC:L/Au:N/C:N/I:N/A:C
- Weaknesses
- CWE-611
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).
Affected configurations
• libexpat project libexpat (< 2.2.7)
• canonical ubuntu linux 12.04
• canonical ubuntu linux 14.04
• canonical ubuntu linux 16.04
• canonical ubuntu linux 18.04
• canonical ubuntu linux 18.10
• canonical ubuntu linux 19.04
• debian debian linux 8.0
• debian debian linux 9.0
• fedoraproject fedora 29
• fedoraproject fedora 30
• opensuse leap 15.0
• opensuse leap 15.1
• oracle hospitality res 3700 (>= 5.7 <= 5.7.6)
• oracle http server 12.1.3.0
• oracle http server 12.2.1.4.0
• oracle outside in technology 8.5.4
• oracle outside in technology 8.5.5
• tenable nessus (< 8.15.0)
Related
Weakness · CWE (1)
- CWE-611 Improper Restriction of XML External Entity Reference weakness
References
- http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00039.html Mailing List, Third Party Advisory
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=5226 Issue Tracking, Third Party Advisory
- https://github.com/libexpat/libexpat/blob/R_2_2_7/expat/Changes Release Notes, Third Party Advisory
- https://github.com/libexpat/libexpat/issues/186 Issue Tracking, Patch, Third Party Advisory
- https://github.com/libexpat/libexpat/pull/262 Exploit, Patch, Third Party Advisory
- https://github.com/libexpat/libexpat/pull/262/commits/11f8838bf99ea0a6f0b76f9760c43704d00c4ff6 Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/06/msg00028.html Mailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CEJJSQSG3KSUQY4FPVHZ7ZTT7FORMFVD/ lists.fedoraproject.org
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IDAUGEB3TUP6NEKJDBUBZX7N5OAUOOOK/ lists.fedoraproject.org
- https://seclists.org/bugtraq/2019/Jun/39 Mailing List, Third Party Advisory
- 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.oracle.com/security-alerts/cpuApr2021.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/cpuoct2021.html Patch, Third Party Advisory
- https://www.tenable.com/security/tns-2021-11 Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00039.html Mailing List, Third Party Advisory
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=5226 Issue Tracking, Third Party Advisory
- https://github.com/libexpat/libexpat/blob/R_2_2_7/expat/Changes Release Notes, Third Party Advisory
- https://github.com/libexpat/libexpat/issues/186 Issue Tracking, Patch, Third Party Advisory
- https://github.com/libexpat/libexpat/pull/262 Exploit, Patch, Third Party Advisory
- https://github.com/libexpat/libexpat/pull/262/commits/11f8838bf99ea0a6f0b76f9760c43704d00c4ff6 Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/06/msg00028.html Mailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CEJJSQSG3KSUQY4FPVHZ7ZTT7FORMFVD/ lists.fedoraproject.org
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IDAUGEB3TUP6NEKJDBUBZX7N5OAUOOOK/ lists.fedoraproject.org
- https://seclists.org/bugtraq/2019/Jun/39 Mailing List, Third Party Advisory
- 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.oracle.com/security-alerts/cpuApr2021.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/cpuoct2021.html Patch, Third Party Advisory
- https://www.tenable.com/security/tns-2021-11 Third Party Advisory
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html cert-portal.siemens.com