Vulnerability identifier: #VU22913
Vulnerability risk: High
CVSSv3.1: 7.1 [CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:U/RC:C]
CVE-ID:
CWE-ID:
CWE-190
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
xcftools
Client/Desktop applications /
Software for system administration
Vendor: Henning Makholm
Description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to integer overflow in the "flattenIncrementally" function in the "xcf2png" and "xcf2pnm" binaries. A remote attacker can trick a victim to open a specially crafted XCF file, trigger integer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Note: An integer overflow can occur while walking through tiles.
Mitigation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.
Vulnerable software versions
xcftools: 1.0.7
External links
http://www.talosintelligence.com/vulnerability_reports/TALOS-2019-0878
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. However, proof of concept for this vulnerability is available.