XML Parsing Vulnerability in libexpat Affecting Multiple Distributions
CVE-2019-15903

7.5HIGH

Key Information:

Vendor

Libexpat Project

Status
Libexpat
Vendor
CVE Published:
4 September 2019

What is CVE-2019-15903?

In versions of libexpat prior to 2.2.8, a vulnerability exists in how the XML parser handles DTD parsing. Maliciously crafted XML input could exploit the parser, causing it to switch from DTD to document parsing prematurely. Subsequent calls to obtain the current line or column number could lead to a buffer over-read, potentially compromising the integrity of the application using this library. Users are advised to upgrade to the latest version to mitigate this risk.

References

https://usn.ubuntu.com/4132-1/
vendor-advisoryx_refsource_UBUNTU
https://seclists.org/bugtraq/2019/Sep/30
mailing-listx_refsource_BUGTRAQ
https://usn.ubuntu.com/4132-2/
vendor-advisoryx_refsource_UBUNTU

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.