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 breakdown
CVSS 3.1
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Affected products
- libexpat project / libexpat2.2.8
- Python / python2.7.0 – 2.7.17
References
- VENDOR_ADVISORYhttps://usn.ubuntu.com/4132-1/
- MAILING_LISThttps://seclists.org/bugtraq/2019/Sep/30
- VENDOR_ADVISORYhttps://usn.ubuntu.com/4132-2/
- MAILING_LISThttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BDUTI5TVQWIGGQXPEVI4T2ENHFSBMIBP/
- VENDOR_ADVISORYhttps://www.debian.org/security/2019/dsa-4530
- MAILING_LISThttps://seclists.org/bugtraq/2019/Sep/37
- MAILING_LISThttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/A4TZKPJFTURRLXIGLB34WVKQ5HGY6JJA/
- MAILING_LISThttp://lists.opensuse.org/opensuse-security-announce/2019-09/msg00081.html
- MAILING_LISThttp://lists.opensuse.org/opensuse-security-announce/2019-09/msg00080.html
- MAILING_LISThttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/S26LGXXQ7YF2BP3RGOWELBFKM6BHF6UG/
- MAILING_LISThttps://seclists.org/bugtraq/2019/Oct/29
- VENDOR_ADVISORYhttps://usn.ubuntu.com/4165-1/
- VENDOR_ADVISORYhttps://www.debian.org/security/2019/dsa-4549
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2019:3210
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2019:3237
- MAILING_LISThttps://seclists.org/bugtraq/2019/Nov/1
- MAILING_LISThttp://lists.opensuse.org/opensuse-security-announce/2019-11/msg00000.html
- MAILING_LISThttp://lists.opensuse.org/opensuse-security-announce/2019-11/msg00002.html
- MAILING_LISThttp://lists.opensuse.org/opensuse-security-announce/2019-11/msg00003.html
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2019:3756
- MAILING_LISThttp://lists.opensuse.org/opensuse-security-announce/2019-11/msg00013.html
- MAILING_LISThttp://lists.opensuse.org/opensuse-security-announce/2019-11/msg00016.html
- MAILING_LISThttp://lists.opensuse.org/opensuse-security-announce/2019-11/msg00018.html
- MAILING_LISThttp://lists.opensuse.org/opensuse-security-announce/2019-11/msg00017.html
- MAILING_LISThttp://lists.opensuse.org/opensuse-security-announce/2019-11/msg00019.html
- MAILING_LISThttps://lists.debian.org/debian-lts-announce/2019/11/msg00006.html
- MAILING_LISThttps://seclists.org/bugtraq/2019/Nov/24
- VENDOR_ADVISORYhttps://www.debian.org/security/2019/dsa-4571
- MAILING_LISThttps://lists.debian.org/debian-lts-announce/2019/11/msg00017.html
- MISChttps://security.gentoo.org/glsa/201911-08
- VENDOR_ADVISORYhttps://usn.ubuntu.com/4202-1/
- MAILING_LISThttps://seclists.org/bugtraq/2019/Dec/17
- MAILING_LISThttps://seclists.org/bugtraq/2019/Dec/21
- MAILING_LISThttps://seclists.org/bugtraq/2019/Dec/23
- MAILING_LISThttp://seclists.org/fulldisclosure/2019/Dec/23
- MAILING_LISThttp://seclists.org/fulldisclosure/2019/Dec/26
- MAILING_LISThttp://seclists.org/fulldisclosure/2019/Dec/30
- MAILING_LISThttp://seclists.org/fulldisclosure/2019/Dec/27
- MAILING_LISThttp://lists.opensuse.org/opensuse-security-announce/2020-01/msg00008.html
- MAILING_LISThttp://lists.opensuse.org/opensuse-security-announce/2020-01/msg00040.html
- VENDOR_ADVISORYhttps://usn.ubuntu.com/4335-1/
- VENDOR_ADVISORYhttps://www.oracle.com/security-alerts/cpuapr2020.html
- VENDOR_ADVISORYhttps://www.oracle.com/security-alerts/cpuoct2020.html
- MISChttps://github.com/libexpat/libexpat/issues/317
- PATCHhttps://github.com/libexpat/libexpat/pull/318
- PATCHhttps://github.com/libexpat/libexpat/commit/c20b758c332d9a13afbbb276d30db1d183a85d43
- MISChttps://github.com/libexpat/libexpat/issues/342
- EXPLOIThttp://packetstormsecurity.com/files/154503/Slackware-Security-Advisory-expat-Updates.html
- MISChttps://security.netapp.com/advisory/ntap-20190926-0004/
- EXPLOIThttp://packetstormsecurity.com/files/154927/Slackware-Security-Advisory-python-Updates.html
- EXPLOIThttp://packetstormsecurity.com/files/154947/Slackware-Security-Advisory-mozilla-firefox-Updates.html
- VENDOR_ADVISORYhttps://support.apple.com/kb/HT210788
- VENDOR_ADVISORYhttps://support.apple.com/kb/HT210790
- VENDOR_ADVISORYhttps://support.apple.com/kb/HT210785
- VENDOR_ADVISORYhttps://support.apple.com/kb/HT210789
- VENDOR_ADVISORYhttps://support.apple.com/kb/HT210793
- VENDOR_ADVISORYhttps://support.apple.com/kb/HT210795
- VENDOR_ADVISORYhttps://support.apple.com/kb/HT210794
- MISChttps://www.tenable.com/security/tns-2021-11
Updated 15m ago · 8 sources