Fortra Globalscape EFT versions before 8.1.0.16 suffer from a denial of service vulnerability, where a compressed message that decompresses to itself can cause infinite recursion and crash the service

References

• https://nvd.nist.gov/vuln/detail/CVE-2023-2990
• https://kb.globalscape.com/Knowledgebase/11588/Is-EFT-susceptible-to-the-Denial-of-service-via-recursive-Deflate-Stream-vulnerability
• https://www.rapid7.com/blog/post/2023/06/22/multiple-vulnerabilities-in-fortra-globalscape-eft-administration-server-fixed