Vulnerability Description
EKG Gadu 1.9~pre+r2855-3+b1 contains a local buffer overflow vulnerability in the username handling that allows local attackers to execute arbitrary code by supplying an oversized username string. Attackers can trigger the overflow in the strlcpy function by passing a crafted buffer exceeding 258 bytes to overwrite the instruction pointer and execute shellcode with user privileges.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- http://ekg.chmurka.net/
- https://www.exploit-db.com/exploits/40392
- https://www.vulncheck.com/advisories/ekg-gadu-local-buffer-overflow-via-username
FAQ
What is CVE-2016-20047?
CVE-2016-20047 is a vulnerability with a CVSS score of 8.4 (HIGH). EKG Gadu 1.9~pre+r2855-3+b1 contains a local buffer overflow vulnerability in the username handling that allows local attackers to execute arbitrary code by supplying an oversized username string. Att...
How severe is CVE-2016-20047?
CVE-2016-20047 has been rated HIGH with a CVSS base score of 8.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2016-20047?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.