CVE-2019-15903

MEDIUM

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.

References

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://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

https://access.redhat.com/errata/RHSA-2019:3210

https://access.redhat.com/errata/RHSA-2019:3237

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.fedoraproject.org/archives/list/[email protected]/message/A4TZKPJFTURRLXIGLB34WVKQ5HGY6JJA/

https://lists.fedoraproject.org/archives/list/[email protected]/message/BDUTI5TVQWIGGQXPEVI4T2ENHFSBMIBP/

https://lists.fedoraproject.org/archives/list/[email protected]/message/S26LGXXQ7YF2BP3RGOWELBFKM6BHF6UG/

https://seclists.org/bugtraq/2019/Nov/1

https://seclists.org/bugtraq/2019/Oct/29

https://seclists.org/bugtraq/2019/Sep/30

https://seclists.org/bugtraq/2019/Sep/37

https://security.netapp.com/advisory/ntap-20190926-0004/

https://usn.ubuntu.com/4132-1/

https://usn.ubuntu.com/4132-2/

https://usn.ubuntu.com/4165-1/

https://www.debian.org/security/2019/dsa-4530

https://www.debian.org/security/2019/dsa-4549

Details

Source: MITRE

Published: 2019-09-04

Updated: 2019-09-12

Type: CWE-611

Risk Information

CVSS v2.0

Base Score: 5

Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P

Impact Score: 2.9

Exploitability Score: 10

Severity: MEDIUM

CVSS v3.0

Base Score: 7.5

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

Impact Score: 3.6

Exploitability Score: 3.9

Severity: HIGH