Vulnerabilities (CVE)

Filtered by vendor Openbsd Subscribe
Filtered by product Openssh
Total 114 CVE
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2016-10011 1 Openbsd 1 Openssh 2022-12-13 2.1 LOW 5.5 MEDIUM
authfile.c in sshd in OpenSSH before 7.4 does not properly consider the effects of realloc on buffer contents, which might allow local users to obtain sensitive private-key information by leveraging access to a privilege-separated child process.
CVE-2016-10010 1 Openbsd 1 Openssh 2022-12-13 6.9 MEDIUM 7.0 HIGH
sshd in OpenSSH before 7.4, when privilege separation is not used, creates forwarded Unix-domain sockets as root, which might allow local users to gain privileges via unspecified vectors, related to serverloop.c.
CVE-2016-0778 5 Apple, Hp, Openbsd and 2 more 6 Mac Os X, Virtual Customer Access System, Openssh and 3 more 2022-12-13 4.6 MEDIUM 8.1 HIGH
The (1) roaming_read and (2) roaming_write functions in roaming_common.c in the client in OpenSSH 5.x, 6.x, and 7.x before 7.1p2, when certain proxy and forward options are enabled, do not properly maintain connection file descriptors, which allows remote servers to cause a denial of service (heap-based buffer overflow) or possibly have unspecified other impact by requesting many forwardings.
CVE-2016-0777 5 Apple, Hp, Openbsd and 2 more 7 Mac Os X, Remote Device Access Virtual Customer Access System, Openssh and 4 more 2022-12-13 4.0 MEDIUM 6.5 MEDIUM
The resend_bytes function in roaming_common.c in the client in OpenSSH 5.x, 6.x, and 7.x before 7.1p2 allows remote servers to obtain sensitive information from process memory by requesting transmission of an entire buffer, as demonstrated by reading a private key.
CVE-2015-8325 3 Canonical, Debian, Openbsd 5 Ubuntu Core, Ubuntu Linux, Ubuntu Touch and 2 more 2022-12-13 7.2 HIGH 7.8 HIGH
The do_setup_env function in session.c in sshd in OpenSSH through 7.2p2, when the UseLogin feature is enabled and PAM is configured to read .pam_environment files in user home directories, allows local users to gain privileges by triggering a crafted environment for the /bin/login program, as demonstrated by an LD_PRELOAD environment variable.
CVE-2015-6565 1 Openbsd 1 Openssh 2022-12-13 7.2 HIGH N/A
sshd in OpenSSH 6.8 and 6.9 uses world-writable permissions for TTY devices, which allows local users to cause a denial of service (terminal disruption) or possibly have unspecified other impact by writing to a device, as demonstrated by writing an escape sequence.
CVE-2015-6564 1 Openbsd 1 Openssh 2022-12-13 6.9 MEDIUM N/A
Use-after-free vulnerability in the mm_answer_pam_free_ctx function in monitor.c in sshd in OpenSSH before 7.0 on non-OpenBSD platforms might allow local users to gain privileges by leveraging control of the sshd uid to send an unexpectedly early MONITOR_REQ_PAM_FREE_CTX request.
CVE-2015-6563 2 Apple, Openbsd 2 Mac Os X, Openssh 2022-12-13 1.9 LOW N/A
The monitor component in sshd in OpenSSH before 7.0 on non-OpenBSD platforms accepts extraneous username data in MONITOR_REQ_PAM_INIT_CTX requests, which allows local users to conduct impersonation attacks by leveraging any SSH login access in conjunction with control of the sshd uid to send a crafted MONITOR_REQ_PWNAM request, related to monitor.c and monitor_wrap.c.
CVE-2015-5600 1 Openbsd 1 Openssh 2022-12-13 8.5 HIGH N/A
The kbdint_next_device function in auth2-chall.c in sshd in OpenSSH through 6.9 does not properly restrict the processing of keyboard-interactive devices within a single connection, which makes it easier for remote attackers to conduct brute-force attacks or cause a denial of service (CPU consumption) via a long and duplicative list in the ssh -oKbdInteractiveDevices option, as demonstrated by a modified client that provides a different password for each pam element on this list.
CVE-2015-5352 1 Openbsd 1 Openssh 2022-12-13 4.3 MEDIUM N/A
The x11_open_helper function in channels.c in ssh in OpenSSH before 6.9, when ForwardX11Trusted mode is not used, lacks a check of the refusal deadline for X connections, which makes it easier for remote attackers to bypass intended access restrictions via a connection outside of the permitted time window.
CVE-2003-1562 1 Openbsd 1 Openssh 2022-12-13 7.6 HIGH N/A
sshd in OpenSSH 3.6.1p2 and earlier, when PermitRootLogin is disabled and using PAM keyboard-interactive authentication, does not insert a delay after a root login attempt with the correct password, which makes it easier for remote attackers to use timing differences to determine if the password step of a multi-step authentication is successful, a different vulnerability than CVE-2003-0190.
CVE-2000-0143 2 Openbsd, Ssh 2 Openssh, Ssh 2022-08-17 4.6 MEDIUM N/A
The SSH protocol server sshd allows local users without shell access to redirect a TCP connection through a service that uses the standard system password database for authentication, such as POP or FTP.
CVE-2020-14145 2 Netapp, Openbsd 10 Active Iq Unified Manager, Aff A700s, Aff A700s Firmware and 7 more 2022-04-28 4.3 MEDIUM 5.9 MEDIUM
The client side in OpenSSH 5.7 through 8.4 has an Observable Discrepancy leading to an information leak in the algorithm negotiation. This allows man-in-the-middle attackers to target initial connection attempts (where no host key for the server has been cached by the client). NOTE: some reports state that 8.5 and 8.6 are also affected.
CVE-2007-2768 2 Netapp, Openbsd 5 Hci Management Node, Hci Storage Node, Solidfire and 2 more 2021-04-01 4.3 MEDIUM N/A
OpenSSH, when using OPIE (One-Time Passwords in Everything) for PAM, allows remote attackers to determine the existence of certain user accounts, which displays a different response if the user account exists and is configured to use one-time passwords (OTP), a similar issue to CVE-2007-2243.
CVE-2013-4548 1 Openbsd 1 Openssh 2019-10-09 6.0 MEDIUM N/A
The mm_newkeys_from_blob function in monitor_wrap.c in sshd in OpenSSH 6.2 and 6.3, when an AES-GCM cipher is used, does not properly initialize memory for a MAC context data structure, which allows remote authenticated users to bypass intended ForceCommand and login-shell restrictions via packet data that provides a crafted callback address.
CVE-2018-15919 2 Netapp, Openbsd 7 Cloud Backup, Cn1610, Cn1610 Firmware and 4 more 2019-03-07 5.0 MEDIUM 5.3 MEDIUM
Remotely observable behaviour in auth-gss2.c in OpenSSH through 7.8 could be used by remote attackers to detect existence of users on a target system when GSS2 is in use. NOTE: the discoverer states 'We understand that the OpenSSH developers do not want to treat such a username enumeration (or "oracle") as a vulnerability.'
CVE-2006-0225 1 Openbsd 1 Openssh 2018-10-19 4.6 MEDIUM N/A
scp in OpenSSH 4.2p1 allows attackers to execute arbitrary commands via filenames that contain shell metacharacters or spaces, which are expanded twice.
CVE-2005-2798 1 Openbsd 1 Openssh 2018-10-19 5.0 MEDIUM N/A
sshd in OpenSSH before 4.2, when GSSAPIDelegateCredentials is enabled, allows GSSAPI credentials to be delegated to clients who log in using non-GSSAPI methods, which could cause those credentials to be exposed to untrusted users or hosts.
CVE-2004-2069 1 Openbsd 1 Openssh 2018-10-19 5.0 MEDIUM N/A
sshd.c in OpenSSH 3.6.1p2 and 3.7.1p2 and possibly other versions, when using privilege separation, does not properly signal the non-privileged process when a session has been terminated after exceeding the LoginGraceTime setting, which leaves the connection open and allows remote attackers to cause a denial of service (connection consumption).
CVE-2006-5794 1 Openbsd 1 Openssh 2018-10-17 7.5 HIGH N/A
Unspecified vulnerability in the sshd Privilege Separation Monitor in OpenSSH before 4.5 causes weaker verification that authentication has been successful, which might allow attackers to bypass authentication. NOTE: as of 20061108, it is believed that this issue is only exploitable by leveraging vulnerabilities in the unprivileged process, which are not known to exist.