CVE-2017-12109 — HIGH (8.8)

Vulnerability Description

An exploitable integer overflow vulnerability exists in the xls_preparseWorkSheet function of libxls 1.4 when handling a MULRK record. A specially crafted XLS file can cause a memory corruption resulting in remote code execution. An attacker can send malicious XLS file to trigger this vulnerability.

CVSS Score

8.8

HIGH

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Libxls Project	Libxls	1.4

Related Weaknesses (CWE)

CWE-190

References

https://www.talosintelligence.com/vulnerability_reports/TALOS-2017-0461ExploitThird Party Advisory
https://www.talosintelligence.com/vulnerability_reports/TALOS-2017-0461ExploitThird Party Advisory

FAQ

What is CVE-2017-12109?

CVE-2017-12109 is a vulnerability with a CVSS score of 8.8 (HIGH). An exploitable integer overflow vulnerability exists in the xls_preparseWorkSheet function of libxls 1.4 when handling a MULRK record. A specially crafted XLS file can cause a memory corruption result...

How severe is CVE-2017-12109?

CVE-2017-12109 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2017-12109?

Check the references section above for vendor advisories and patch information. Affected products include: Libxls Project Libxls.