Filtered by vendor Openbsd
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34 CVE
| CVE | Vendors | Products | Updated | CVSS v2 | CVSS v3 |
|---|---|---|---|---|---|
| CVE-2004-0079 | 23 4d, Apple, Avaya and 20 more | 66 Webstar, Mac Os X, Mac Os X Server and 63 more | 2023-12-28 | 5.0 MEDIUM | 7.5 HIGH |
| The do_change_cipher_spec function in OpenSSL 0.9.6c to 0.9.6k, and 0.9.7a to 0.9.7c, allows remote attackers to cause a denial of service (crash) via a crafted SSL/TLS handshake that triggers a null dereference. | |||||
| CVE-2021-41617 | 5 Fedoraproject, Netapp, Openbsd and 2 more | 14 Fedora, Active Iq Unified Manager, Aff 500f and 11 more | 2023-12-26 | 4.4 MEDIUM | 7.0 HIGH |
| sshd in OpenSSH 6.2 through 8.x before 8.8, when certain non-default configurations are used, allows privilege escalation because supplemental groups are not initialized as expected. Helper programs for AuthorizedKeysCommand and AuthorizedPrincipalsCommand may run with privileges associated with group memberships of the sshd process, if the configuration specifies running the command as a different user. | |||||
| CVE-2021-28041 | 4 Fedoraproject, Netapp, Openbsd and 1 more | 11 Fedora, Cloud Backup, Hci Compute Node and 8 more | 2022-05-20 | 4.6 MEDIUM | 7.1 HIGH |
| ssh-agent in OpenSSH before 8.5 has a double free that may be relevant in a few less-common scenarios, such as unconstrained agent-socket access on a legacy operating system, or the forwarding of an agent to an attacker-controlled host. | |||||
| CVE-2022-27881 | 1 Openbsd | 1 Openbsd | 2022-05-12 | 5.0 MEDIUM | 7.5 HIGH |
| engine.c in slaacd in OpenBSD 6.9 and 7.0 before 2022-02-21 has a buffer overflow triggerable by an IPv6 router advertisement with more than seven nameservers. NOTE: privilege separation and pledge can prevent exploitation. | |||||
| CVE-2022-27882 | 1 Openbsd | 1 Openbsd | 2022-05-12 | 5.0 MEDIUM | 7.5 HIGH |
| slaacd in OpenBSD 6.9 and 7.0 before 2022-03-22 has an integer signedness error and resultant heap-based buffer overflow triggerable by a crafted IPv6 router advertisement. NOTE: privilege separation and pledge can prevent exploitation. | |||||
| CVE-2010-4816 | 1 Openbsd | 1 Openbsd | 2021-09-20 | 5.0 MEDIUM | 7.5 HIGH |
| It was found in FreeBSD 8.0, 6.3 and 4.9, and OpenBSD 4.6 that a null pointer dereference in ftpd/popen.c may lead to remote denial of service of the ftpd service. | |||||
| CVE-2016-10708 | 4 Canonical, Debian, Netapp and 1 more | 12 Ubuntu Linux, Debian Linux, Cloud Backup and 9 more | 2021-09-14 | 5.0 MEDIUM | 7.5 HIGH |
| 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. | |||||
| CVE-2016-6515 | 2 Fedoraproject, Openbsd | 2 Fedora, Openssh | 2021-09-14 | 7.8 HIGH | 7.5 HIGH |
| The auth_password function in auth-passwd.c in sshd in OpenSSH before 7.3 does not limit password lengths for password authentication, which allows remote attackers to cause a denial of service (crypt CPU consumption) via a long string. | |||||
| CVE-2019-8460 | 1 Openbsd | 1 Openbsd | 2021-08-02 | 5.0 MEDIUM | 7.5 HIGH |
| OpenBSD kernel version <= 6.5 can be forced to create long chains of TCP SACK holes that causes very expensive calls to tcp_sack_option() for every incoming SACK packet which can lead to a denial of service. | |||||
| CVE-2019-19519 | 1 Openbsd | 1 Openbsd | 2021-07-21 | 4.6 MEDIUM | 7.8 HIGH |
| In OpenBSD 6.6, local users can use the su -L option to achieve any login class (often excluding root) because there is a logic error in the main function in su/su.c. | |||||
| CVE-2019-16905 | 1 Openbsd | 1 Openssh | 2021-07-21 | 4.4 MEDIUM | 7.8 HIGH |
| OpenSSH 7.7 through 7.9 and 8.x before 8.1, when compiled with an experimental key type, has a pre-authentication integer overflow if a client or server is configured to use a crafted XMSS key. This leads to memory corruption and local code execution because of an error in the XMSS key parsing algorithm. NOTE: the XMSS implementation is considered experimental in all released OpenSSH versions, and there is no supported way to enable it when building portable OpenSSH. | |||||
| CVE-2019-25049 | 2 Linux, Openbsd | 2 Linux Kernel, Libressl | 2021-07-08 | 5.8 MEDIUM | 7.1 HIGH |
| LibreSSL 2.9.1 through 3.2.1 has an out-of-bounds read in asn1_item_print_ctx (called from asn1_template_print_ctx). | |||||
| CVE-2019-25048 | 2 Linux, Openbsd | 2 Linux Kernel, Libressl | 2021-07-08 | 5.8 MEDIUM | 7.1 HIGH |
| LibreSSL 2.9.1 through 3.2.1 has a heap-based buffer over-read in do_print_ex (called from asn1_item_print_ctx and ASN1_item_print). | |||||
| CVE-2019-14899 | 4 Apple, Freebsd, Linux and 1 more | 7 Ipad Os, Iphone Os, Mac Os X and 4 more | 2021-07-05 | 4.9 MEDIUM | 7.4 HIGH |
| A vulnerability was discovered in Linux, FreeBSD, OpenBSD, MacOS, iOS, and Android that allows a malicious access point, or an adjacent user, to determine if a connected user is using a VPN, make positive inferences about the websites they are visiting, and determine the correct sequence and acknowledgement numbers in use, allowing the bad actor to inject data into the TCP stream. This provides everything that is needed for an attacker to hijack active connections inside the VPN tunnel. | |||||
| CVE-2020-15778 | 3 Broadcom, Netapp, Openbsd | 10 Fabric Operating System, A700s, A700s Firmware and 7 more | 2021-06-22 | 6.8 MEDIUM | 7.8 HIGH |
| ** DISPUTED ** scp in OpenSSH through 8.3p1 allows command injection in the scp.c toremote function, as demonstrated by backtick characters in the destination argument. NOTE: the vendor reportedly has stated that they intentionally omit validation of "anomalous argument transfers" because that could "stand a great chance of breaking existing workflows." | |||||
| CVE-2019-6724 | 4 Apple, Barracuda, Linux and 1 more | 4 Mac Os X, Vpn Client, Linux Kernel and 1 more | 2020-08-24 | 7.2 HIGH | 7.8 HIGH |
| The barracudavpn component of the Barracuda VPN Client prior to version 5.0.2.7 for Linux, macOS, and OpenBSD runs as a privileged process and can allow an unprivileged local attacker to load a malicious library, resulting in arbitrary code executing as root. | |||||
| CVE-2019-19520 | 1 Openbsd | 1 Openbsd | 2020-08-24 | 4.6 MEDIUM | 7.8 HIGH |
| xlock in OpenBSD 6.6 allows local users to gain the privileges of the auth group by providing a LIBGL_DRIVERS_PATH environment variable, because xenocara/lib/mesa/src/loader/loader.c mishandles dlopen. | |||||
| CVE-2019-19522 | 1 Openbsd | 1 Openbsd | 2020-08-24 | 7.2 HIGH | 7.8 HIGH |
| OpenBSD 6.6, in a non-default configuration where S/Key or YubiKey authentication is enabled, allows local users to become root by leveraging membership in the auth group. This occurs because root's file can be written to /etc/skey or /var/db/yubikey, and need not be owned by root. | |||||
| CVE-2020-12062 | 1 Openbsd | 1 Openssh | 2020-06-04 | 5.0 MEDIUM | 7.5 HIGH |
| ** DISPUTED ** The scp client in OpenSSH 8.2 incorrectly sends duplicate responses to the server upon a utimes system call failure, which allows a malicious unprivileged user on the remote server to overwrite arbitrary files in the client's download directory by creating a crafted subdirectory anywhere on the remote server. The victim must use the command scp -rp to download a file hierarchy containing, anywhere inside, this crafted subdirectory. NOTE: the vendor points out that "this attack can achieve no more than a hostile peer is already able to achieve within the scp protocol" and "utimes does not fail under normal circumstances." | |||||
| CVE-2011-3336 | 4 Apple, Freebsd, Openbsd and 1 more | 4 Mac Os X, Freebsd, Openbsd and 1 more | 2020-02-18 | 7.8 HIGH | 7.5 HIGH |
| regcomp in the BSD implementation of libc is vulnerable to denial of service due to stack exhaustion. | |||||
| CVE-2015-5333 | 2 Openbsd, Opensuse | 2 Libressl, Opensuse | 2020-01-29 | 5.0 MEDIUM | 7.5 HIGH |
| Memory leak in the OBJ_obj2txt function in LibreSSL before 2.3.1 allows remote attackers to cause a denial of service (memory consumption) via a large number of ASN.1 object identifiers in X.509 certificates. | |||||
| CVE-2012-5663 | 1 Openbsd | 1 Textproc\/isearch | 2020-01-10 | 5.0 MEDIUM | 7.5 HIGH |
| The isearch package (textproc/isearch) before 1.47.01nb1 uses the tempnam() function to create insecure temporary files into a publicly-writable area (/tmp). | |||||
| CVE-2019-19726 | 1 Openbsd | 1 Openbsd | 2019-12-27 | 7.2 HIGH | 7.8 HIGH |
| OpenBSD through 6.6 allows local users to escalate to root because a check for LD_LIBRARY_PATH in setuid programs can be defeated by setting a very small RLIMIT_DATA resource limit. When executing chpass or passwd (which are setuid root), _dl_setup_env in ld.so tries to strip LD_LIBRARY_PATH from the environment, but fails when it cannot allocate memory. Thus, the attacker is able to execute their own library code as root. | |||||
| CVE-2016-0778 | 5 Apple, Hp, Openbsd and 2 more | 6 Mac Os X, Virtual Customer Access System, Openssh and 3 more | 2019-12-27 | 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-2017-5850 | 1 Openbsd | 1 Openbsd | 2019-10-03 | 7.8 HIGH | 7.5 HIGH |
| 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-2016-8858 | 1 Openbsd | 1 Openssh | 2018-09-19 | 7.8 HIGH | 7.5 HIGH |
| ** 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." | |||||
| CVE-2016-10012 | 1 Openbsd | 1 Openssh | 2018-09-11 | 7.2 HIGH | 7.8 HIGH |
| 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. | |||||
| CVE-2016-10009 | 1 Openbsd | 1 Openssh | 2018-09-11 | 7.5 HIGH | 7.3 HIGH |
| 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-2015-8325 | 3 Canonical, Debian, Openbsd | 5 Ubuntu Core, Ubuntu Linux, Ubuntu Touch and 2 more | 2018-06-30 | 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-2016-10010 | 1 Openbsd | 1 Openssh | 2018-06-01 | 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-2018-8970 | 1 Openbsd | 1 Libressl | 2018-04-24 | 5.8 MEDIUM | 7.4 HIGH |
| The int_x509_param_set_hosts function in lib/libcrypto/x509/x509_vpm.c in LibreSSL 2.7.0 before 2.7.1 does not support a certain special case of a zero name length, which causes silent omission of hostname verification, and consequently allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate. NOTE: the LibreSSL documentation indicates that this special case is supported, but the BoringSSL documentation does not. | |||||
| CVE-2016-6241 | 1 Openbsd | 1 Openbsd | 2017-09-01 | 7.2 HIGH | 7.8 HIGH |
| 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-2016-6240 | 1 Openbsd | 1 Openbsd | 2017-09-01 | 7.2 HIGH | 7.8 HIGH |
| Integer truncation error in the amap_alloc function in OpenBSD 5.8 and 5.9 allows local users to execute arbitrary code with kernel privileges via a large size value. | |||||
| CVE-2016-6244 | 1 Openbsd | 1 Openbsd | 2017-03-08 | 7.8 HIGH | 7.5 HIGH |
| 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. | |||||