Vulnerabilities (CVE)

Filtered by vendor Openbsd Subscribe
Filtered by product Openbsd
Total 193 CVE
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2004-0081 23 4d, Apple, Avaya and 20 more 66 Webstar, Mac Os X, Mac Os X Server and 63 more 2021-11-08 5.0 MEDIUM N/A
OpenSSL 0.9.6 before 0.9.6d does not properly handle unknown message types, which allows remote attackers to cause a denial of service (infinite loop), as demonstrated using the Codenomicon TLS Test Tool.
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-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-2019-19520 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-2019-6724 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-2019-19522 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-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-2001-0247 5 Freebsd, Mit, Netbsd and 2 more 5 Freebsd, Kerberos 5, Netbsd and 2 more 2020-01-21 10.0 HIGH N/A
Buffer overflows in BSD-based FTP servers allows remote attackers to execute arbitrary commands via a long pattern string containing a {} sequence, as seen in (1) g_opendir, (2) g_lstat, (3) g_stat, and (4) the glob0 buffer as used in the glob functions glob2 and glob3.
CVE-2003-0028 10 Cray, Freebsd, Gnu and 7 more 13 Unicos, Freebsd, Glibc and 10 more 2020-01-21 7.5 HIGH N/A
Integer overflow in the xdrmem_getbytes() function, and possibly other functions, of XDR (external data representation) libraries derived from SunRPC, including libnsl, libc, glibc, and dietlibc, allows remote attackers to execute arbitrary code via certain integer values in length fields, a different vulnerability than CVE-2002-0391.
CVE-2012-1577 3 Debian, Dietlibc Project, Openbsd 3 Debian Linux, Dietlibc, Openbsd 2019-12-17 7.5 HIGH 9.8 CRITICAL
lib/libc/stdlib/random.c in OpenBSD returns 0 when seeded with 0.
CVE-2019-19521 1 Openbsd 1 Openbsd 2019-12-12 7.5 HIGH 9.8 CRITICAL
libc in OpenBSD 6.6 allows authentication bypass via the -schallenge username, as demonstrated by smtpd, ldapd, or radiusd. This is related to gen/auth_subr.c and gen/authenticate.c in libc (and login/login.c and xenocara/app/xenodm/greeter/verify.c).
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-2017-1000372 1 Openbsd 1 Openbsd 2019-10-03 7.5 HIGH 9.8 CRITICAL
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-2005-0356 9 Alaxala, Cisco, F5 and 6 more 76 Alaxala Networks, Agent Desktop, Aironet Ap1200 and 73 more 2019-04-30 5.0 MEDIUM N/A
Multiple TCP implementations with Protection Against Wrapped Sequence Numbers (PAWS) with the timestamps option enabled allow remote attackers to cause a denial of service (connection loss) via a spoofed packet with a large timer value, which causes the host to discard later packets because they appear to be too old.
CVE-2009-0689 5 Freebsd, K-meleon Project, Mozilla and 2 more 6 Freebsd, K-meleon, Firefox and 3 more 2018-11-02 6.8 MEDIUM N/A
Array index error in the (1) dtoa implementation in dtoa.c (aka pdtoa.c) and the (2) gdtoa (aka new dtoa) implementation in gdtoa/misc.c in libc, as used in multiple operating systems and products including in FreeBSD 6.4 and 7.2, NetBSD 5.0, OpenBSD 4.5, Mozilla Firefox 3.0.x before 3.0.15 and 3.5.x before 3.5.4, K-Meleon 1.5.3, SeaMonkey 1.1.8, and other products, allows context-dependent attackers to cause a denial of service (application crash) and possibly execute arbitrary code via a large precision value in the format argument to a printf function, which triggers incorrect memory allocation and a heap-based buffer overflow during conversion to a floating-point number.
CVE-2002-2280 1 Openbsd 1 Openbsd 2018-10-30 2.1 LOW N/A
syslogd on OpenBSD 2.9 through 3.2 does not change the source IP address of syslog packets when the machine's IP addressed is changed without rebooting, e.g. via ifconfig, which can cause incorrect information to be sent to the syslog server.
CVE-2002-0572 3 Freebsd, Openbsd, Sun 4 Freebsd, Openbsd, Solaris and 1 more 2018-10-30 7.2 HIGH N/A
FreeBSD 4.5 and earlier, and possibly other BSD-based operating systems, allows local users to write to or read from restricted files by closing the file descriptors 0 (standard input), 1 (standard output), or 2 (standard error), which may then be reused by a called setuid process that intended to perform I/O on normal files.
CVE-1999-0674 3 Netbsd, Openbsd, Sun 4 Netbsd, Openbsd, Solaris and 1 more 2018-10-30 7.2 HIGH N/A
The BSD profil system call allows a local user to modify the internal data space of a program via profiling and execve.
CVE-2002-1345 3 Ncftp Software, Openbsd, Sun 4 Ncftp, Openbsd, Solaris and 1 more 2018-10-30 5.0 MEDIUM N/A
Directory traversal vulnerabilities in multiple FTP clients on UNIX systems allow remote malicious FTP servers to create or overwrite files as the client user via filenames containing /absolute/path or .. (dot dot) sequences.