CVE-2021-33500

Description

PuTTY before 0.75 on Windows allows remote servers to cause a denial of service (Windows GUI hang) by telling the PuTTY window to change its title repeatedly at high speed, which results in many SetWindowTextA or SetWindowTextW calls. NOTE: the same attack methodology may affect some OS-level GUIs on Linux or other platforms for similar reasons.

Risk Information

Base Score
7.5
MODERATE
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS Score
Exploitation Probability
0.4

Associated Vulnerability

VulnerabilityOS Platform
Vulnerabilities CVE-2021-33500 are affected in PuTTY (x64) 0.74(x64)Windows
Vulnerabilities CVE-2021-33500 are affected in PuTTY 0.74Windows

Patch Details

Click to see the patches provided by ManageEngine for this CVE
Patch IDPatch Description
PATCH-319502PuTTY (x64) (0.75)
PATCH-319501PuTTY (0.75)

References

https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234