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CVE-2018-20177

CRITICALCVSS 9.8/10EPSS 7.93%

Last modified

CVE-2018-20177 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. rdesktop versions up to and including v1.8.3 contain an Integer Overflow that leads to a Heap-Based Buffer Overflow in the function rdp_in_unistr() and results in memory corruption and possibly even a remote code execution.. EPSS estimates a 7.93% chance of exploitation in the next 30 days.

Description

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

Metrics

CVSS 3.1
9.8/10

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

EPSS Probability
7.93%

94.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersionsUpdate
RdesktopRdesktop<= 1.8.3—
DebianDebian Linux8.0—
DebianDebian Linux9.0—
OpensuseBackportssle-15Sp1
OpensuseLeap15.1—

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2018-20177?
rdesktop versions up to and including v1.8.3 contain an Integer Overflow that leads to a Heap-Based Buffer Overflow in the function rdp_in_unistr() and results in memory corruption and possibly even a remote code execution.
How severe is CVE-2018-20177?
CVE-2018-20177 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 7.93% probability of exploitation in the next 30 days.
How do I fix CVE-2018-20177?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

How Strix Helps

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Source: NVD / NIST