Memory corruption in libxls - CVE-2018-20452
Published: December 25, 2018
Vulnerability identifier: #VU16705
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/U:Clear
CVE-ID: CVE-2018-20452
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: libxls.sourceforge.net
Affected software:
libxls
libxls
Detailed vulnerability description
The vulnerability allows a remote attacker to cause DoS condition on the target system.
The vulnerability exists due to inconsistent memory management (new versus free) in ole2_read_header in ole.c. A remote attacker can submit a specially crafted Excel file, trigger an invalid free in the read_MSAT_body function in ole.c and cause the service to crash.
How to mitigate CVE-2018-20452
Cybersecurity Help is currently unaware of any solutions to address the vulnerability.