CVE-2017-12108

Status: Analyzed
Last modified: 28-01-2023
Published: 24-04-2018
8.8

SUMMARY CVE-2017-12108

An exploitable integer overflow vulnerability exists in the xls_preparseWorkSheet function of libxls 1.4 when handling a MULBLANK 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.

Access CVSS3 CVE-2017-12108

Attack Complexity Attack Vector Privileges Required Scope User Interaction
LOW NETWORK NONE UNCHANGED REQUIRED

Impact CVSS3 CVE-2017-12108

Confidentiality Integrity Availability
HIGH HIGH HIGH

Details CVE-2017-12108

EPSS 0.01010
EPSS % 0.83873
References
CWE CWE-190
CAPEC
  • Forced Integer Overflow: This attack forces an integer variable to go out of range. The integer variable is often used as an offset such as size of memory allocation or similarly. The attacker would typically control the value of such variable and try to get it out of range. For instance the integer in question is incremented past the maximum possible value, it may wrap to become a very small, or negative number, therefore providing a very incorrect value which can lead to unexpected behavior. At worst the attacker can execute arbitrary code.
Vulnerable Configurations
  • cpe:2.3:a:libxls_project:libxls:1.4:*:*:*:*:*:*:*
    cpe:2.3:a:libxls_project:libxls:1.4:*:*:*:*:*:*:*
CVSS3 Source nvd@nist.gov
CVSS3 Type Primary
CVSS3 Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

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