CVE-2016-20047

HIGH

8.4

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.

Details CVE

Score CVSS v3.18.4

SeveriteHIGH

Vecteur CVSSCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Vecteur d'attaqueLOCAL

ComplexiteLOW

Privileges requisNONE

Interaction utilisateurNONE

Publie3/28/2026

Derniere modification3/28/2026

Sourcenvd

Observations honeypot0

Faiblesses (CWE)

CWE-787

References

http://ekg.chmurka.net/(disclosure@vulncheck.com)

https://www.exploit-db.com/exploits/40392(disclosure@vulncheck.com)

https://www.vulncheck.com/advisories/ekg-gadu-local-buffer-overflow-via-username-parameter(disclosure@vulncheck.com)

Correlations IOC

Aucune correlation enregistree

This product uses data from the NVD API but is not endorsed or certified by the NVD.