Filtered by vendor Openbsd Subscriptions
Total 333 CVE
CVE Vendors Products Updated CVSS v3.1
CVE-2016-1908 4 Debian, Openbsd, Oracle and 1 more 10 Debian Linux, Openssh, Linux and 7 more 2025-04-20 9.8 Critical
The client in OpenSSH before 7.2 mishandles failed cookie generation for untrusted X11 forwarding and relies on the local X11 server for access-control decisions, which allows remote X11 clients to trigger a fallback and obtain trusted X11 forwarding privileges by leveraging configuration issues on this X11 server, as demonstrated by lack of the SECURITY extension on this X11 server.
CVE-2017-8301 1 Openbsd 1 Libressl 2025-04-20 N/A
LibreSSL 2.5.1 to 2.5.3 lacks TLS certificate verification if SSL_get_verify_result is relied upon for a later check of a verification result, in a use case where a user-provided verification callback returns 1, as demonstrated by acceptance of invalid certificates by nginx.
CVE-2016-6239 1 Openbsd 1 Openbsd 2025-04-20 N/A
The mmap extension __MAP_NOFAULT in OpenBSD 5.8 and 5.9 allows attackers to cause a denial of service (kernel panic and crash) via a large size value.
CVE-2016-6522 1 Openbsd 1 Openbsd 2025-04-20 N/A
Integer overflow in the uvm_map_isavail function in uvm/uvm_map.c in OpenBSD 5.9 allows local users to cause a denial of service (kernel panic) via a crafted mmap call, which triggers the new mapping to overlap with an existing mapping.
CVE-2016-6246 1 Openbsd 1 Openbsd 2025-04-20 N/A
OpenBSD 5.8 and 5.9 allows certain local users with kern.usermount privileges to cause a denial of service (kernel panic) by mounting a tmpfs with a VNOVAL in the (1) username, (2) groupname, or (3) device name of the root node.
CVE-2017-1000372 1 Openbsd 1 Openbsd 2025-04-20 N/A
A flaw exists in OpenBSD's implementation of the stack guard page that allows attackers to bypass it resulting in arbitrary code execution using setuid binaries such as /usr/bin/at. This affects OpenBSD 6.1 and possibly earlier versions.
CVE-2016-6243 1 Openbsd 1 Openbsd 2025-04-20 N/A
thrsleep in kern/kern_synch.c in OpenBSD 5.8 and 5.9 allows local users to cause a denial of service (kernel panic) via a crafted value in the tsp parameter of the __thrsleep system call.
CVE-2016-6244 1 Openbsd 1 Openbsd 2025-04-20 N/A
The sys_thrsigdivert function in kern/kern_sig.c in the OpenBSD kernel 5.9 allows remote attackers to cause a denial of service (panic) via a negative "ts.tv_sec" value.
CVE-2015-7687 2 Fedoraproject, Openbsd 2 Fedora, Opensmtpd 2025-04-20 N/A
Use-after-free vulnerability in OpenSMTPD before 5.7.2 allows remote attackers to cause a denial of service (crash) or execute arbitrary code via vectors involving req_ca_vrfy_smtp and req_ca_vrfy_mta.
CVE-2016-6247 1 Openbsd 1 Openbsd 2025-04-20 N/A
OpenBSD 5.8 and 5.9 allows certain local users to cause a denial of service (kernel panic) by unmounting a filesystem with an open vnode on the mnt_vnodelist.
CVE-2017-5850 1 Openbsd 1 Openbsd 2025-04-20 N/A
httpd in OpenBSD allows remote attackers to cause a denial of service (memory consumption) via a series of requests for a large file using an HTTP Range header.
CVE-2017-1000373 1 Openbsd 1 Openbsd 2025-04-20 N/A
The OpenBSD qsort() function is recursive, and not randomized, an attacker can construct a pathological input array of N elements that causes qsort() to deterministically recurse N/4 times. This allows attackers to consume arbitrary amounts of stack memory and manipulate stack memory to assist in arbitrary code execution attacks. This affects OpenBSD 6.1 and possibly earlier versions.
CVE-2016-6241 1 Openbsd 1 Openbsd 2025-04-20 N/A
Integer overflow in the amap_alloc1 function in OpenBSD 5.8 and 5.9 allows local users to execute arbitrary code with kernel privileges via a large size value.
CVE-2014-7250 4 Bsd, Freebsd, Netbsd and 1 more 4 Bsd, Freebsd, Netbsd and 1 more 2025-04-12 N/A
The TCP stack in 4.3BSD Net/2, as used in FreeBSD 5.4, NetBSD possibly 2.0, and OpenBSD possibly 3.6, does not properly implement the session timer, which allows remote attackers to cause a denial of service (resource consumption) via crafted packets.
CVE-2013-2125 1 Openbsd 1 Opensmtpd 2025-04-12 N/A
OpenSMTPD before 5.3.2 does not properly handle SSL sessions, which allows remote attackers to cause a denial of service (connection blocking) by keeping a connection open.
CVE-2014-9424 1 Openbsd 1 Libressl 2025-04-12 N/A
Double free vulnerability in the ssl_parse_clienthello_use_srtp_ext function in d1_srtp.c in LibreSSL before 2.1.2 allows remote attackers to cause a denial of service or possibly have unspecified other impact by triggering a certain length-verification error during processing of a DTLS handshake.
CVE-2014-2532 3 Openbsd, Oracle, Redhat 3 Openssh, Communications User Data Repository, Enterprise Linux 2025-04-12 N/A
sshd in OpenSSH before 6.6 does not properly support wildcards on AcceptEnv lines in sshd_config, which allows remote attackers to bypass intended environment restrictions by using a substring located before a wildcard character.
CVE-2016-10009 2 Openbsd, Redhat 2 Openssh, Enterprise Linux 2025-04-12 N/A
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.
CVE-2015-5352 2 Openbsd, Redhat 2 Openssh, Enterprise Linux 2025-04-12 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-2016-10010 1 Openbsd 1 Openssh 2025-04-12 N/A
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.