CVE-2018-20181 — Integer Underflow (Wrap or Wraparound) in Rdesktop

CWE-191 — Integer Underflow (Wrap or Wraparound)CWE-787 — Out-of-bounds WriteCWE-119 — Improper Restriction of Operations within the Bounds of a Memory Buffer7 documents6 sources
Severity
9.8CRITICALNVD
EPSS
9.9%
top 6.97%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
RdesktopDebian RdesktopDebian Linux
Timeline
PublishedMar 15
Latest updateMay 13

Description

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.

CVSS vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitability: 3.9 | Impact: 5.9

Affected Packages3 packages

▶debiandebian/rdesktop< rdesktop 1.8.4-1 (bookworm)
▶Debianrdesktop/rdesktop< 1.8.4-1+3

Also affects: Debian Linux 8.0, 9.0

Patches

Patch: github.com ↗Patch: github.com ↗

🔴Vulnerability Details

2
GHSA
GHSA-pf2q-qj2p-69mh: rdesktop versions up to and including v1↗2022-05-13
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OSV
CVE-2018-20181: rdesktop versions up to and including v1↗2019-03-15
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📋Vendor Advisories

2
Red Hat
rdesktop: Remote code execution in seamless_process↗2019-01-04
▶
Debian
CVE-2018-20181: rdesktop - rdesktop versions up to and including v1.8.3 contain an Integer Underflow that l...↗2018
▶

💬Community

2
Bugzilla
CVE-2018-20181 rdesktop: Remote code execution in seamless_process↗2019-01-29
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Bugzilla
CVE-2018-20174 CVE-2018-20175 CVE-2018-20176 CVE-2018-20177 CVE-2018-20178 CVE-2018-20179 CVE-2018-20180 CVE-2018-20181 CVE-2018-20182 CVE-2018-8791 CVE-2018-8792 CVE-2018-8793 CVE-2018-8794 CVE-2018-↗2019-01-29
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