Vulnerability identifier: #VU50921
Vulnerability risk: Medium
CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-476
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
libxls
Client/Desktop applications /
Multimedia software
Vendor: libxls.sourceforge.net
Description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error within the libxls/xls2csv.c file in libxls when parsing XLS cells. A remote attacker can trigger denial of service conditions via crafted XLS file.
Mitigation
Install update from vendor's website.
Vulnerable software versions
libxls: 0.2.0 - 1.6.2 rc0
External links
http://bugzilla.redhat.com/show_bug.cgi?id=1903296
http://github.com/libxls/libxls/issues/84
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.