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Package details: pkg:deb/debian/dropbear@0.52-5%2Bsqueeze1
purl pkg:deb/debian/dropbear@0.52-5%2Bsqueeze1
Next non-vulnerable version 2022.83-1+deb12u3
Latest non-vulnerable version 2022.83-1+deb12u3
Risk 3.6
Vulnerabilities affecting this package (17)
Vulnerability Summary Fixed by
VCID-3vk4-zvpq-7kgx
Aliases:
CVE-2017-2659
It was found that dropbear before version 2013.59 with GSSAPI leaks whether given username is valid or invalid. When an invalid username is given, the GSSAPI authentication failure was incorrectly counted towards the maximum allowed number of password attempts.
2014.65-1
Affected by 13 other vulnerabilities.
VCID-4ymq-4z3g-wqh5
Aliases:
CVE-2021-36369
An issue was discovered in Dropbear through 2020.81. Due to a non-RFC-compliant check of the available authentication methods in the client-side SSH code, it is possible for an SSH server to change the login process in its favor. This attack can bypass additional security measures such as FIDO2 tokens or SSH-Askpass. Thus, it allows an attacker to abuse a forwarded agent for logging on to another server unnoticed.
2020.81-3+deb11u2
Affected by 1 other vulnerability.
VCID-7xbm-w19j-jfb9
Aliases:
CVE-2018-15599
The recv_msg_userauth_request function in svr-auth.c in Dropbear through 2018.76 is prone to a user enumeration vulnerability because username validity affects how fields in SSH_MSG_USERAUTH messages are handled, a similar issue to CVE-2018-15473 in an unrelated codebase.
2018.76-5+deb10u1
Affected by 5 other vulnerabilities.
VCID-8ts4-wkqj-g3ae
Aliases:
CVE-2013-4434
2014.65-1
Affected by 13 other vulnerabilities.
VCID-9u2q-kctv-3bed
Aliases:
CVE-2016-3116
2016.74-5+deb9u1
Affected by 6 other vulnerabilities.
VCID-a5yf-by4y-b3a7
Aliases:
CVE-2016-7406
2016.74-5+deb9u1
Affected by 6 other vulnerabilities.
VCID-bvbu-vk3m-nyc5
Aliases:
CVE-2017-9078
2014.65-1+deb8u2
Affected by 13 other vulnerabilities.
2016.74-5+deb9u1
Affected by 6 other vulnerabilities.
VCID-cd8f-6kqm-tugu
Aliases:
CVE-2017-9079
2014.65-1+deb8u2
Affected by 13 other vulnerabilities.
2016.74-5+deb9u1
Affected by 6 other vulnerabilities.
VCID-cz6g-79bh-2ua1
Aliases:
CVE-2020-36254
scp.c in Dropbear before 2020.79 mishandles the filename of . or an empty filename, a related issue to CVE-2018-20685.
2020.81-3+deb11u2
Affected by 1 other vulnerability.
VCID-d3dj-mmre-cydr
Aliases:
CVE-2016-7408
2016.74-5+deb9u1
Affected by 6 other vulnerabilities.
VCID-dzz1-fqru-8yfm
Aliases:
CVE-2019-12953
Dropbear 2011.54 through 2018.76 has an inconsistent failure delay that may lead to revealing valid usernames, a different issue than CVE-2018-15599.
2020.81-3+deb11u2
Affected by 1 other vulnerability.
VCID-m84v-bc2h-27bq
Aliases:
CVE-2016-7409
2016.74-5+deb9u1
Affected by 6 other vulnerabilities.
VCID-rmk2-8vdv-ubdt
Aliases:
CVE-2023-48795
GHSA-45x7-px36-x8w8
The SSH transport protocol with certain OpenSSH extensions, found in OpenSSH before 9.6 and other products, allows remote attackers to bypass integrity checks such that some packets are omitted (from the extension negotiation message), and a client and server may consequently end up with a connection for which some security features have been downgraded or disabled, aka a Terrapin attack. This occurs because the SSH Binary Packet Protocol (BPP), implemented by these extensions, mishandles the handshake phase and mishandles use of sequence numbers. For example, there is an effective attack against SSH's use of ChaCha20-Poly1305 (and CBC with Encrypt-then-MAC). The bypass occurs in chacha20-poly1305@openssh.com and (if CBC is used) the -etm@openssh.com MAC algorithms. This also affects Maverick Synergy Java SSH API before 3.1.0-SNAPSHOT, Dropbear through 2022.83, Ssh before 5.1.1 in Erlang/OTP, PuTTY before 0.80, AsyncSSH before 2.14.2, golang.org/x/crypto before 0.17.0, libssh before 0.10.6, libssh2 through 1.11.0, Thorn Tech SFTP Gateway before 3.4.6, Tera Term before 5.1, Paramiko before 3.4.0, jsch before 0.2.15, SFTPGo before 2.5.6, Netgate pfSense Plus through 23.09.1, Netgate pfSense CE through 2.7.2, HPN-SSH through 18.2.0, ProFTPD before 1.3.8b (and before 1.3.9rc2), ORYX CycloneSSH before 2.3.4, NetSarang XShell 7 before Build 0144, CrushFTP before 10.6.0, ConnectBot SSH library before 2.2.22, Apache MINA sshd through 2.11.0, sshj through 0.37.0, TinySSH through 20230101, trilead-ssh2 6401, LANCOM LCOS and LANconfig, FileZilla before 3.66.4, Nova before 11.8, PKIX-SSH before 14.4, SecureCRT before 9.4.3, Transmit5 before 5.10.4, Win32-OpenSSH before 9.5.0.0p1-Beta, WinSCP before 6.2.2, Bitvise SSH Server before 9.32, Bitvise SSH Client before 9.33, KiTTY through 0.76.1.13, the net-ssh gem 7.2.0 for Ruby, the mscdex ssh2 module before 1.15.0 for Node.js, the thrussh library before 0.35.1 for Rust, and the Russh crate before 0.40.2 for Rust.
2020.81-3+deb11u2
Affected by 1 other vulnerability.
VCID-s8em-2tq4-1uhw
Aliases:
CVE-2013-4421
2014.65-1
Affected by 13 other vulnerabilities.
VCID-uxyz-6vdg-y7h3
Aliases:
CVE-2012-0920
2012.55-1.3
Affected by 16 other vulnerabilities.
VCID-vh1j-p5bc-1bcd
Aliases:
CVE-2016-7407
2016.74-5+deb9u1
Affected by 6 other vulnerabilities.
VCID-z6nh-ddwr-wyap
Aliases:
CVE-2025-47203
dbclient in Dropbear SSH before 2025.88 allows command injection via an untrusted hostname argument, because a shell is used.
2022.83-1+deb12u2
Affected by 1 other vulnerability.
2022.83-1+deb12u3
Affected by 0 other vulnerabilities.
Vulnerabilities fixed by this package (0)
Vulnerability Summary Aliases
This package is not known to fix vulnerabilities.

Date Actor Action Vulnerability Source VulnerableCode Version
2025-08-01T19:41:00.691656+00:00 Debian Oval Importer Affected by VCID-m84v-bc2h-27bq https://www.debian.org/security/oval/oval-definitions-bullseye.xml.bz2 37.0.0
2025-08-01T19:18:22.860325+00:00 Debian Oval Importer Affected by VCID-a5yf-by4y-b3a7 https://www.debian.org/security/oval/oval-definitions-bullseye.xml.bz2 37.0.0
2025-08-01T18:37:28.674174+00:00 Debian Oval Importer Affected by VCID-bvbu-vk3m-nyc5 https://www.debian.org/security/oval/oval-definitions-bullseye.xml.bz2 37.0.0
2025-08-01T18:03:27.595534+00:00 Debian Oval Importer Affected by VCID-uxyz-6vdg-y7h3 https://www.debian.org/security/oval/oval-definitions-bullseye.xml.bz2 37.0.0
2025-08-01T17:57:12.964727+00:00 Debian Oval Importer Affected by VCID-dzz1-fqru-8yfm https://www.debian.org/security/oval/oval-definitions-bullseye.xml.bz2 37.0.0
2025-08-01T17:14:31.420242+00:00 Debian Oval Importer Affected by VCID-cz6g-79bh-2ua1 https://www.debian.org/security/oval/oval-definitions-bullseye.xml.bz2 37.0.0
2025-08-01T16:59:42.740402+00:00 Debian Oval Importer Affected by VCID-7xbm-w19j-jfb9 https://www.debian.org/security/oval/oval-definitions-bullseye.xml.bz2 37.0.0
2025-08-01T16:55:27.152526+00:00 Debian Oval Importer Affected by VCID-rmk2-8vdv-ubdt https://www.debian.org/security/oval/oval-definitions-bullseye.xml.bz2 37.0.0
2025-08-01T16:53:34.946232+00:00 Debian Oval Importer Affected by VCID-9u2q-kctv-3bed https://www.debian.org/security/oval/oval-definitions-bullseye.xml.bz2 37.0.0
2025-08-01T16:02:00.182221+00:00 Debian Oval Importer Affected by VCID-4ymq-4z3g-wqh5 https://www.debian.org/security/oval/oval-definitions-bullseye.xml.bz2 37.0.0
2025-08-01T15:47:12.834030+00:00 Debian Oval Importer Affected by VCID-vh1j-p5bc-1bcd https://www.debian.org/security/oval/oval-definitions-bullseye.xml.bz2 37.0.0
2025-08-01T13:11:13.153856+00:00 Debian Oval Importer Affected by VCID-s8em-2tq4-1uhw https://www.debian.org/security/oval/oval-definitions-bullseye.xml.bz2 37.0.0
2025-08-01T13:07:53.944747+00:00 Debian Oval Importer Affected by VCID-3vk4-zvpq-7kgx https://www.debian.org/security/oval/oval-definitions-bullseye.xml.bz2 37.0.0
2025-08-01T12:33:15.886316+00:00 Debian Oval Importer Affected by VCID-cd8f-6kqm-tugu https://www.debian.org/security/oval/oval-definitions-bullseye.xml.bz2 37.0.0
2025-08-01T12:13:44.854830+00:00 Debian Oval Importer Affected by VCID-8ts4-wkqj-g3ae https://www.debian.org/security/oval/oval-definitions-bullseye.xml.bz2 37.0.0
2025-08-01T11:50:27.585111+00:00 Debian Oval Importer Affected by VCID-d3dj-mmre-cydr https://www.debian.org/security/oval/oval-definitions-bullseye.xml.bz2 37.0.0
2025-08-01T11:49:53.943718+00:00 Debian Oval Importer Affected by VCID-z6nh-ddwr-wyap https://www.debian.org/security/oval/oval-definitions-bullseye.xml.bz2 37.0.0
2025-08-01T10:19:30.073753+00:00 Debian Oval Importer Affected by VCID-cd8f-6kqm-tugu https://www.debian.org/security/oval/oval-definitions-jessie.xml.bz2 37.0.0
2025-08-01T10:13:23.507653+00:00 Debian Oval Importer Affected by VCID-bvbu-vk3m-nyc5 https://www.debian.org/security/oval/oval-definitions-jessie.xml.bz2 37.0.0