Buffer overflow in Rdesktop

CVE-2018-20181

rdesktop versions up to and including v1.8.3 contain an Integer Underflow that leads to a Heap-Based Buffer Overflow in the function seamless_process() and results in memory corruption and probably even a remote code execution.

EPSS: 0.082 (94.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

References

  • cve@mitre.org (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
  • cve@mitre.org (Patch, Third Party Advisory, x_refsource_MISC)
  • cve@mitre.org (vendor-advisory, Third Party Advisory, x_refsource_GENTOO)
  • cve@mitre.org (x_refsource_CONFIRM, Exploit, Third Party Advisory)
  • cve@mitre.org (vendor-advisory, Third Party Advisory, x_refsource_DEBIAN)
  • cve@mitre.org (mailing-list, x_refsource_MLIST, Mailing List, Third Party Advisory)
  • cve@mitre.org (vendor-advisory, x_refsource_SUSE)

Frequently asked questions

What is CVE-2018-20181?
CVE-2018-20181 is a critical-severity vulnerability in Rdesktop, classified under Integer Underflow. CVSS score: 9.8/10. Published 2019-03-15.
How severe is CVE-2018-20181?
Critical severity. CVSS v3 base score is 9.8 out of 10.