PT-2021-11987 · Dropbear+1 · Dropbear+1

Published 2020-05-25 · Updated 2024-05-03 · CVE-2020-36254

Positive Technologies (AI Summary)

CVSS v3.1

8.1

High

Base vector

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

Name of the Vulnerable Software and Affected Versions: Dropbear versions prior to 2020.79

Description: The issue is related to the handling of filenames in scp.c, specifically with . or an empty filename. This is a related issue to a previously known problem.

Recommendations: For versions prior to 2020.79, update to version 2020.79 or later to resolve the issue.

Fix

RCE

Weakness Enumeration

CWE-20

Related Identifiers

ALT-PU-2022-2113

ALT-PU-2024-4252

ALT-PU-2024-7377

BDU:2025-13198

CVE-2020-36254

Affected Products

Alt Linux

Dropbear

References · 13

• https://github.com/mkj/dropbear/commit/8f8a3dff705fad774a10864a2e3dbcfa9779ceff · Patch
• https://osv.dev/vulnerability/CVE-2020-36254 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2020-36254 · Vendor Advisory
• https://bdu.fstec.ru/vul/2025-13198 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2020-36254 · Security Note
• https://cve.org/CVERecord?id=CVE-2020-36254 · Security Note
• https://osv.dev/vulnerability/ALPINE-CVE-2020-36254 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2020-36254 · Vendor Advisory
• https://ubuntu.com/security/CVE-2020-36254 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2020-36254 · Vendor Advisory
• https://t.me/cibsecurity/24123 · Telegram Post
• https://security.alpinelinux.org/vuln/CVE-2020-36254 · Note
• https://t.me/cvenotify/10752 · Telegram Post