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Vulnerability Intelligence

Vulnerability IntelligenceCVE-2019-15903

CVE-2019-15903

HIGH7.5

In libexpat before 2

Published Sep 4, 2019

Modified 9 months ago

Details

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(60)

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

CVSS Analysis

CVSS v3.1

6.5

Exploitability

Attack Vector

NetworkAV:N

Attack Complexity

LowAC:L

Privileges Required

NonePR:N

User Interaction

RequiredUI:R

Scope

Scope

UnchangedS:U

Impact

Confidentiality

NoneC:N

Integrity

NoneI:N

Availability

HighA:H

6.5/CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Ecosystems

Timeline

PublishedSep 4, 2019

ModifiedMay 30, 2025

CVE-2019-15903 | Mondoo Vulnerability Intelligence