National Vulnerability Database

National Vulnerability Database

National Vulnerability
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Search Parameters:
  • Contains Software Flaws (CVE)
  • CPE Product Version: cpe:/a:openbsd:openssh:7.0:p1
There are 20 matching records.
Vuln ID Summary CVSS Severity
CVE-2019-6111

An issue was discovered in OpenSSH 7.9. Due to the scp implementation being derived from 1983 rcp, the server chooses which files/directories are sent to the client. However, the scp client only performs cursory validation of the object name returned (only directory traversal attacks are prevented). A malicious scp server (or Man-in-The-Middle attacker) can overwrite arbitrary files in the scp client target directory. If recursive operation (-r) is performed, the server can manipulate subdirectories as well (for example, to overwrite the .ssh/authorized_keys file).

Published: January 31, 2019; 01:29:00 PM -05:00
V3.0: 5.9 MEDIUM
    V2: 5.8 MEDIUM
CVE-2019-6110

In OpenSSH 7.9, due to accepting and displaying arbitrary stderr output from the server, a malicious server (or Man-in-The-Middle attacker) can manipulate the client output, for example to use ANSI control codes to hide additional files being transferred.

Published: January 31, 2019; 01:29:00 PM -05:00
V3.0: 6.8 MEDIUM
    V2: 4.0 MEDIUM
CVE-2019-6109

An issue was discovered in OpenSSH 7.9. Due to missing character encoding in the progress display, a malicious server (or Man-in-The-Middle attacker) can employ crafted object names to manipulate the client output, e.g., by using ANSI control codes to hide additional files being transferred. This affects refresh_progress_meter() in progressmeter.c.

Published: January 31, 2019; 01:29:00 PM -05:00
V3.0: 6.8 MEDIUM
    V2: 4.0 MEDIUM
CVE-2018-20685

In OpenSSH 7.9, scp.c in the scp client allows remote SSH servers to bypass intended access restrictions via the filename of . or an empty filename. The impact is modifying the permissions of the target directory on the client side.

Published: January 10, 2019; 04:29:00 PM -05:00
V3.0: 5.3 MEDIUM
    V2: 2.6 LOW
CVE-2018-15919

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.'

Published: August 28, 2018; 04:29:00 AM -04:00
V3.0: 5.3 MEDIUM
    V2: 5.0 MEDIUM
CVE-2018-15473

OpenSSH through 7.7 is prone to a user enumeration vulnerability due to not delaying bailout for an invalid authenticating user until after the packet containing the request has been fully parsed, related to auth2-gss.c, auth2-hostbased.c, and auth2-pubkey.c.

Published: August 17, 2018; 03:29:00 PM -04:00
V3.0: 5.3 MEDIUM
    V2: 5.0 MEDIUM
CVE-2016-10708

sshd in OpenSSH before 7.4 allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via an out-of-sequence NEWKEYS message, as demonstrated by Honggfuzz, related to kex.c and packet.c.

Published: January 21, 2018; 05:29:00 PM -05:00
V3.0: 7.5 HIGH
    V2: 5.0 MEDIUM
CVE-2017-15906

The process_open function in sftp-server.c in OpenSSH before 7.6 does not properly prevent write operations in readonly mode, which allows attackers to create zero-length files.

Published: October 25, 2017; 11:29:00 PM -04:00
V3.0: 5.3 MEDIUM
    V2: 5.0 MEDIUM
CVE-2016-10012

The shared memory manager (associated with pre-authentication compression) in sshd in OpenSSH before 7.4 does not ensure that a bounds check is enforced by all compilers, which might allows local users to gain privileges by leveraging access to a sandboxed privilege-separation process, related to the m_zback and m_zlib data structures.

Published: January 04, 2017; 09:59:03 PM -05:00
V3.0: 7.8 HIGH
    V2: 7.2 HIGH
CVE-2016-10011

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.

Published: January 04, 2017; 09:59:03 PM -05:00
V3.0: 5.5 MEDIUM
    V2: 2.1 LOW
CVE-2016-10010

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.

Published: January 04, 2017; 09:59:03 PM -05:00
V3.0: 7.0 HIGH
    V2: 6.9 MEDIUM
CVE-2016-10009

Untrusted search path vulnerability in ssh-agent.c in ssh-agent in OpenSSH before 7.4 allows remote attackers to execute arbitrary local PKCS#11 modules by leveraging control over a forwarded agent-socket.

Published: January 04, 2017; 09:59:03 PM -05:00
V3.0: 7.3 HIGH
    V2: 7.5 HIGH
CVE-2016-8858

** DISPUTED ** The kex_input_kexinit function in kex.c in OpenSSH 6.x and 7.x through 7.3 allows remote attackers to cause a denial of service (memory consumption) by sending many duplicate KEXINIT requests. NOTE: a third party reports that "OpenSSH upstream does not consider this as a security issue."

Published: December 09, 2016; 06:59:00 AM -05:00
V3.0: 7.5 HIGH
    V2: 7.8 HIGH
CVE-2016-3115

Multiple CRLF injection vulnerabilities in session.c in sshd in OpenSSH before 7.2p2 allow remote authenticated users to bypass intended shell-command restrictions via crafted X11 forwarding data, related to the (1) do_authenticated1 and (2) session_x11_req functions.

Published: March 22, 2016; 06:59:02 AM -04:00
V3.0: 6.4 MEDIUM
    V2: 5.5 MEDIUM
CVE-2016-1907

The ssh_packet_read_poll2 function in packet.c in OpenSSH before 7.1p2 allows remote attackers to cause a denial of service (out-of-bounds read and application crash) via crafted network traffic.

Published: January 19, 2016; 12:59:10 AM -05:00
V3.0: 5.3 MEDIUM
    V2: 5.0 MEDIUM
CVE-2016-0778

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.

Published: January 14, 2016; 05:59:02 PM -05:00
V3.0: 8.1 HIGH
    V2: 4.6 MEDIUM
CVE-2016-0777

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.

Published: January 14, 2016; 05:59:01 PM -05:00
V3.0: 6.5 MEDIUM
    V2: 4.0 MEDIUM
CVE-2014-1692

The hash_buffer function in schnorr.c in OpenSSH through 6.4, when Makefile.inc is modified to enable the J-PAKE protocol, does not initialize certain data structures, which might allow remote attackers to cause a denial of service (memory corruption) or have unspecified other impact via vectors that trigger an error condition.

Published: January 29, 2014; 11:02:05 AM -05:00
    V2: 7.5 HIGH
CVE-2008-3844

Certain Red Hat Enterprise Linux (RHEL) 4 and 5 packages for OpenSSH, as signed in August 2008 using a legitimate Red Hat GPG key, contain an externally introduced modification (Trojan Horse) that allows the package authors to have an unknown impact. NOTE: since the malicious packages were not distributed from any official Red Hat sources, the scope of this issue is restricted to users who may have obtained these packages through unofficial distribution points. As of 20080827, no unofficial distributions of this software are known.

Published: August 27, 2008; 04:41:00 PM -04:00
    V2: 9.3 HIGH
CVE-2007-2768

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.

Published: May 21, 2007; 04:30:00 PM -04:00
    V2: 4.3 MEDIUM