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…

Code

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Timeline

Detection, updates, and resolution for this record.

1. Mar 28, 2026 · NIST NVD

   Detected

   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.

2. Jun 17, 2026 · NIST NVD

   Updated

   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.

Sources

• CVE.orgVulnerability recordCVE-2016-20047

  Official CVE identifier

  cve.org
• NIST NVDVulnerability recordCVE-2016-20047

  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 buf

  nvd.nist.gov

References

• Reference · ekg.chmurka.net
• Reference · exploit-db.com
• Reference · vulncheck.com