Filtered by vendor Openbsd Subscriptions
Filtered by product Openbsd Subscriptions
Total 199 CVE
CVE Vendors Products Updated CVSS v3.1
CVE-2022-27882 1 Openbsd 1 Openbsd 2024-11-21 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-2022-27881 1 Openbsd 1 Openbsd 2024-11-21 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-2021-34999 1 Openbsd 1 Openbsd 2024-11-21 N/A
OpenBSD Kernel Multicast Routing Uninitialized Memory Information Disclosure Vulnerability. This vulnerability allows local attackers to disclose sensitive information on affected installations of OpenBSD Kernel. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the implementation of multicast routing. The issue results from the lack of proper initialization of memory prior to accessing it. An attacker can leverage this in conjunction with other vulnerabilities to escalate privileges and execute arbitrary code in the context of the kernel. . Was ZDI-CAN-14540.
CVE-2020-26142 1 Openbsd 1 Openbsd 2024-11-21 5.3 Medium
An issue was discovered in the kernel in OpenBSD 6.6. The WEP, WPA, WPA2, and WPA3 implementations treat fragmented frames as full frames. An adversary can abuse this to inject arbitrary network packets, independent of the network configuration.
CVE-2020-16088 1 Openbsd 1 Openbsd 2024-11-21 9.8 Critical
iked in OpenIKED, as used in OpenBSD through 6.7, allows authentication bypass because ca.c has the wrong logic for checking whether a public key matches.
CVE-2019-8460 1 Openbsd 1 Openbsd 2024-11-21 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-2019-6724 4 Apple, Barracuda, Linux and 1 more 4 Mac Os X, Vpn Client, Linux Kernel and 1 more 2024-11-21 N/A
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-2019-19726 1 Openbsd 1 Openbsd 2024-11-21 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-2019-19522 1 Openbsd 1 Openbsd 2024-11-21 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-2019-19521 1 Openbsd 1 Openbsd 2024-11-21 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-2019-19520 1 Openbsd 1 Openbsd 2024-11-21 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-2019-19519 1 Openbsd 1 Openbsd 2024-11-21 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-2019-14899 4 Apple, Freebsd, Linux and 1 more 8 Ipados, Iphone Os, Mac Os X and 5 more 2024-11-21 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-2018-14775 1 Openbsd 1 Openbsd 2024-11-21 N/A
tss_alloc in sys/arch/i386/i386/gdt.c in OpenBSD 6.2 and 6.3 has a Local Denial of Service (system crash) due to incorrect I/O port access control on the i386 architecture.
CVE-2012-1577 3 Debian, Dietlibc Project, Openbsd 3 Debian Linux, Dietlibc, Openbsd 2024-11-21 9.8 Critical
lib/libc/stdlib/random.c in OpenBSD returns 0 when seeded with 0.
CVE-2011-3336 4 Apple, Freebsd, Openbsd and 1 more 4 Mac Os X, Freebsd, Openbsd and 1 more 2024-11-21 7.5 High
regcomp in the BSD implementation of libc is vulnerable to denial of service due to stack exhaustion.
CVE-2010-4816 1 Openbsd 1 Openbsd 2024-11-21 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-2024-10934 1 Openbsd 1 Openbsd 2024-11-18 9.8 Critical
In OpenBSD 7.5 before errata 008 and OpenBSD 7.4 before errata 021, avoid possible mbuf double free in NFS client and server implementation, do not use uninitialized variable in error handling of NFS server.
CVE-2024-43688 2 Openbsd, Vixie 2 Openbsd, Cron 2024-08-26 7.3 High
cron/entry.c in vixie cron before 9cc8ab1, as used in OpenBSD 7.4 and 7.5, allows a heap-based buffer underflow and memory corruption. NOTE: this issue was introduced during a May 2023 refactoring.