CVE search · CVE-2021-33500
CVE-2021-33500
high 7.5
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.
Details
- Status
- Modified
- Published
- Last changed
- Source
- cve@mitre.org
- Weakness
- NVD-CWE-noinfo
Severity
| Version | Score | Vector | Source |
|---|---|---|---|
| CVSS 3.1 | high 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
cve@mitre.orgSecondary |
| CVSS 3.1 | high 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
nvd@nist.govPrimary |
| CVSS 2.0 | medium 5.0 | AV:N/AC:L/Au:N/C:N/I:N/A:P |
nvd@nist.govPrimary |
Affected products
Vendor and product from the NVD’s CPE applicability statements. Versions and conditions are on the NVD’s page.
- putty · putty
References
- https://docs.ssh-mitm.at/puttydos.htmlExploitThird Party Advisory
- https://github.com/ssh-mitm/ssh-mitm-plugins/blob/main/ssh_mitm_plugins/ssh/putty_dos.pyExploitThird Party Advisory
- https://www.chiark.greenend.org.uk/~sgtatham/putty/changes.htmlRelease NotesThird Party Advisory
- https://docs.ssh-mitm.at/puttydos.htmlExploitThird Party Advisory
- https://github.com/ssh-mitm/ssh-mitm-plugins/blob/main/ssh_mitm_plugins/ssh/putty_dos.pyExploitThird Party Advisory
- https://www.chiark.greenend.org.uk/~sgtatham/putty/changes.htmlRelease NotesThird Party Advisory