Vulnerabilities (CVE)

Filtered by vendor Openbsd Subscribe
Filtered by product Openbsd
Total 193 CVE
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-1999-0724 1 Openbsd 1 Openbsd 2025-04-03 4.6 MEDIUM N/A
Buffer overflow in OpenBSD procfs and fdescfs file systems via uio_offset in the readdir() function.
CVE-1999-0703 3 Bsdi, Freebsd, Openbsd 3 Bsd Os, Freebsd, Openbsd 2025-04-03 3.6 LOW N/A
OpenBSD, BSDI, and other Unix operating systems allow users to set chflags and fchflags on character and block devices.
CVE-2000-1208 4 Immunix, Netbsd, Openbsd and 1 more 4 Immunix, Netbsd, Openbsd and 1 more 2025-04-03 7.2 HIGH N/A
Format string vulnerability in startprinting() function of printjob.c in BSD-based lpr lpd package may allow local users to gain privileges via an improper syslog call that uses format strings from the checkremote() call.
CVE-2003-0466 7 Apple, Freebsd, Netbsd and 4 more 8 Mac Os X, Mac Os X Server, Freebsd and 5 more 2025-04-03 10.0 HIGH 9.8 CRITICAL
Off-by-one error in the fb_realpath() function, as derived from the realpath function in BSD, may allow attackers to execute arbitrary code, as demonstrated in wu-ftpd 2.5.0 through 2.6.2 via commands that cause pathnames of length MAXPATHLEN+1 to trigger a buffer overflow, including (1) STOR, (2) RETR, (3) APPE, (4) DELE, (5) MKD, (6) RMD, (7) STOU, or (8) RNTO.
CVE-2003-0681 8 Apple, Gentoo, Hp and 5 more 14 Mac Os X, Mac Os X Server, Linux and 11 more 2025-04-03 7.5 HIGH N/A
A "potential buffer overflow in ruleset parsing" for Sendmail 8.12.9, when using the nonstandard rulesets (1) recipient (2), final, or (3) mailer-specific envelope recipients, has unknown consequences.
CVE-2000-0997 2 Netbsd, Openbsd 2 Netbsd, Openbsd 2025-04-03 7.2 HIGH N/A
Format string vulnerabilities in eeprom program in OpenBSD, NetBSD, and possibly other operating systems allows local attackers to gain root privileges.
CVE-2004-0114 3 Freebsd, Netbsd, Openbsd 3 Freebsd, Netbsd, Openbsd 2025-04-03 4.6 MEDIUM N/A
The shmat system call in the System V Shared Memory interface for FreeBSD 5.2 and earlier, NetBSD 1.3 and earlier, and OpenBSD 2.6 and earlier, does not properly decrement a shared memory segment's reference count when the vm_map_find function fails, which could allow local users to gain read or write access to a portion of kernel memory and gain privileges.
CVE-2000-1004 1 Openbsd 1 Openbsd 2025-04-03 4.6 MEDIUM N/A
Format string vulnerability in OpenBSD photurisd allows local users to execute arbitrary commands via a configuration file directory name that contains formatting characters.
CVE-2003-0955 1 Openbsd 1 Openbsd 2025-04-03 4.6 MEDIUM N/A
OpenBSD kernel 3.3 and 3.4 allows local users to cause a denial of service (kernel panic) and possibly execute arbitrary code in 3.4 via a program with an invalid header that is not properly handled by (1) ibcs2_exec.c in the iBCS2 emulation (compat_ibcs2) or (2) exec_elf.c, which leads to a stack-based buffer overflow.
CVE-2003-0804 3 Apple, Freebsd, Openbsd 4 Mac Os X, Mac Os X Server, Freebsd and 1 more 2025-04-03 5.0 MEDIUM N/A
The arplookup function in FreeBSD 5.1 and earlier, Mac OS X before 10.2.8, and possibly other BSD-based systems, allows remote attackers on a local subnet to cause a denial of service (resource starvation and panic) via a flood of spoofed ARP requests.
CVE-2023-27567 1 Openbsd 1 Openbsd 2025-03-06 N/A 7.5 HIGH
In OpenBSD 7.2, a TCP packet with destination port 0 that matches a pf divert-to rule can crash the kernel.
CVE-2022-48437 1 Openbsd 2 Libressl, Openbsd 2025-02-10 N/A 5.3 MEDIUM
An issue was discovered in x509/x509_verify.c in LibreSSL before 3.6.1, and in OpenBSD before 7.2 errata 001. x509_verify_ctx_add_chain does not store errors that occur during leaf certificate verification, and therefore an incorrect error is returned. This behavior occurs when there is an installed verification callback that instructs the verifier to continue upon detecting an invalid certificate.
CVE-2021-46880 1 Openbsd 2 Libressl, Openbsd 2025-02-07 N/A 9.8 CRITICAL
x509/x509_verify.c in LibreSSL before 3.4.2, and OpenBSD before 7.0 errata 006, allows authentication bypass because an error for an unverified certificate chain is sometimes discarded.
CVE-2023-40216 1 Openbsd 1 Openbsd 2024-11-21 N/A 5.5 MEDIUM
OpenBSD 7.3 before errata 014 is missing an argument-count bounds check in console terminal emulation. This could cause incorrect memory access and a kernel crash after receiving crafted DCS or CSI terminal escape sequences.
CVE-2023-38283 2 Openbgpd, Openbsd 2 Openbgpd, Openbsd 2024-11-21 N/A 5.3 MEDIUM
In OpenBGPD before 8.1, incorrect handling of BGP update data (length of path attributes) set by a potentially distant remote actor may cause the system to incorrectly reset a session. This is fixed in OpenBSD 7.3 errata 006.
CVE-2023-35784 1 Openbsd 2 Libressl, Openbsd 2024-11-21 N/A 9.8 CRITICAL
A double free or use after free could occur after SSL_clear in OpenBSD 7.2 before errata 026 and 7.3 before errata 004, and in LibreSSL before 3.6.3 and 3.7.x before 3.7.3. NOTE: OpenSSL is not affected.
CVE-2023-29323 2 Openbsd, Opensmtpd 2 Openbsd, Opensmtpd 2024-11-21 N/A 7.8 HIGH
ascii_load_sockaddr in smtpd in OpenBSD before 7.1 errata 024 and 7.2 before errata 020, and OpenSMTPD Portable before 7.0.0-portable commit f748277, can abort upon a connection from a local, scoped IPv6 address.
CVE-2022-27882 1 Openbsd 1 Openbsd 2024-11-21 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-2022-27881 1 Openbsd 1 Openbsd 2024-11-21 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-2020-26142 1 Openbsd 1 Openbsd 2024-11-21 2.6 LOW 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.