CVE-2019-15903 Information

Description

In libexpat before 2.2.8 crafted XML input could fool the parser into changing from DTD parsing to document parsing too early; a consecutive call to XML_GetCurrentLineNumber (or XML_GetCurrentColumnNumber) then resulted in a heap-based buffer over-read.

CVSS Vector

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

Reference

http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00080.html http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00081.html http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00000.html http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00002.html http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00003.html http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00013.html http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00016.html http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00017.html http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00018.html http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00019.html http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00008.html http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00040.html http://packetstormsecurity.com/files/154503/Slackware-Security-Advisory-expat-Updates.html http://packetstormsecurity.com/files/154927/Slackware-Security-Advisory-python-Updates.html http://packetstormsecurity.com/files/154947/Slackware-Security-Advisory-mozilla-firefox-Updates.html http://seclists.org/fulldisclosure/2019/Dec/23 http://seclists.org/fulldisclosure/2019/Dec/26 http://seclists.org/fulldisclosure/2019/Dec/27 http://seclists.org/fulldisclosure/2019/Dec/30 https://access.redhat.com/errata/RHSA-2019:3210 https://access.redhat.com/errata/RHSA-2019:3237 https://access.redhat.com/errata/RHSA-2019:3756 https://github.com/libexpat/libexpat/commit/c20b758c332d9a13afbbb276d30db1d183a85d43 https://github.com/libexpat/libexpat/issues/317 https://github.com/libexpat/libexpat/issues/342 https://github.com/libexpat/libexpat/pull/318 https://lists.debian.org/debian-lts-announce/2019/11/msg00006.html https://lists.debian.org/debian-lts-announce/2019/11/msg00017.html https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/A4TZKPJFTURRLXIGLB34WVKQ5HGY6JJA/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BDUTI5TVQWIGGQXPEVI4T2ENHFSBMIBP/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/S26LGXXQ7YF2BP3RGOWELBFKM6BHF6UG/ https://seclists.org/bugtraq/2019/Dec/17 https://seclists.org/bugtraq/2019/Dec/21 https://seclists.org/bugtraq/2019/Dec/23 https://seclists.org/bugtraq/2019/Nov/1 https://seclists.org/bugtraq/2019/Nov/24 https://seclists.org/bugtraq/2019/Oct/29 https://seclists.org/bugtraq/2019/Sep/30 https://seclists.org/bugtraq/2019/Sep/37 https://security.gentoo.org/glsa/201911-08 https://security.netapp.com/advisory/ntap-20190926-0004/ https://support.apple.com/kb/HT210785 https://support.apple.com/kb/HT210788 https://support.apple.com/kb/HT210789 https://support.apple.com/kb/HT210790 https://support.apple.com/kb/HT210793 https://support.apple.com/kb/HT210794 https://support.apple.com/kb/HT210795 https://usn.ubuntu.com/4132-1/ https://usn.ubuntu.com/4132-2/ https://usn.ubuntu.com/4165-1/ https://usn.ubuntu.com/4202-1/ https://usn.ubuntu.com/4335-1/ https://www.debian.org/security/2019/dsa-4530 https://www.debian.org/security/2019/dsa-4549 https://www.debian.org/security/2019/dsa-4571 https://www.oracle.com/security-alerts/cpuapr2020.html https://www.oracle.com/security-alerts/cpuoct2020.html

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

7.5