Filtered by vendor Freebsd Subscriptions
Total 593 CVE
CVE Vendors Products Updated CVSS v3.1
CVE-2026-4747 1 Freebsd 1 Freebsd 2026-04-20 8.8 High
Each RPCSEC_GSS data packet is validated by a routine which checks a signature in the packet. This routine copies a portion of the packet into a stack buffer, but fails to ensure that the buffer is sufficiently large, and a malicious client can trigger a stack overflow. Notably, this does not require the client to authenticate itself first. As kgssapi.ko's RPCSEC_GSS implementation is vulnerable, remote code execution in the kernel is possible by an authenticated user that is able to send packets to the kernel's NFS server while kgssapi.ko is loaded into the kernel. In userspace, applications which have librpcgss_sec loaded and run an RPC server are vulnerable to remote code execution from any client able to send it packets. We are not aware of any such applications in the FreeBSD base system.
CVE-2026-3038 1 Freebsd 1 Freebsd 2026-04-16 7.5 High
The rtsock_msg_buffer() function serializes routing information into a buffer. As a part of this, it copies sockaddr structures into a sockaddr_storage structure on the stack. It assumes that the source sockaddr length field had already been validated, but this is not necessarily the case, and it's possible for a malicious userspace program to craft a request which triggers a 127-byte overflow. In practice, this overflow immediately overwrites the canary for the rtsock_msg_buffer() stack frame, resulting in a panic once the function returns. The bug allows an unprivileged user to crash the kernel by triggering a stack buffer overflow in rtsock_msg_buffer(). In particular, the overflow will corrupt a stack canary value that is verified when the function returns; this mitigates the impact of the stack overflow by triggering a kernel panic. Other kernel bugs may exist which allow userspace to find the canary value and thus defeat the mitigation, at which point local privilege escalation may be possible.
CVE-2026-2261 1 Freebsd 1 Freebsd 2026-04-16 7.5 High
Due to a programming error, blocklistd leaks a socket descriptor for each adverse event report it receives. Once a certain number of leaked sockets is reached, blocklistd becomes unable to run the helper script: a child process is forked, but this child dereferences a null pointer and crashes before it is able to exec the helper. At this point, blocklistd still records adverse events but is unable to block new addresses or unblock addresses whose database entries have expired. Once a second, much higher number of leaked sockets is reached, blocklistd becomes unable to receive new adverse event reports. An attacker may take advantage of this by triggering a large number of adverse events from sacrificial IP addresses to effectively disable blocklistd before launching an attack. Even in the absence of attacks or probes by would-be attackers, adverse events will occur regularly in the course of normal operations, and blocklistd will gradually run out file descriptors and become ineffective. The accumulation of open sockets may have knock-on effects on other parts of the system, resulting in a general slowdown until blocklistd is restarted.
CVE-2003-0694 12 Apple, Compaq, Freebsd and 9 more 20 Mac Os X, Mac Os X Server, Tru64 and 17 more 2026-04-16 N/A
The prescan function in Sendmail 8.12.9 allows remote attackers to execute arbitrary code via buffer overflow attacks, as demonstrated using the parseaddr function in parseaddr.c.
CVE-2005-0610 1 Freebsd 1 Freebsd 2026-04-16 N/A
Multiple symlink vulnerabilities in portupgrade before 20041226_2 in FreeBSD allow local users to (1) overwrite arbitrary files and possibly replace packages to execute arbitrary code via pkg_fetch, (2) overwrite arbitrary files via temporary files when portupgrade upgrades a port or package, or (3) create arbitrary zero-byte files via the pkgdb.fixme temporary file.
CVE-1999-0297 5 Bsdi, Freebsd, Netbsd and 2 more 5 Bsd Os, Freebsd, Netbsd and 2 more 2026-04-16 N/A
Buffer overflow in Vixie Cron library up to version 3.0 allows local users to obtain root access via a long environmental variable.
CVE-2004-0919 1 Freebsd 1 Freebsd 2026-04-16 N/A
The syscons CONS_SCRSHOT ioctl in FreeBSD 5.x allows local users to read arbitrary kernel memory via (1) negative coordinates or (2) large coordinates.
CVE-1999-0863 1 Freebsd 1 Freebsd 2026-04-16 N/A
Buffer overflow in FreeBSD seyon via HOME environmental variable, -emulator argument, -modems argument, or the GUI.
CVE-2003-1234 1 Freebsd 1 Freebsd 2026-04-16 N/A
Integer overflow in the f_count counter in FreeBSD before 4.2 through 5.0 allows local users to cause a denial of service (crash) and possibly execute arbitrary code via multiple calls to (1) fpathconf and (2) lseek, which do not properly decrement f_count through a call to fdrop.
CVE-2000-0749 1 Freebsd 1 Freebsd 2026-04-16 N/A
Buffer overflow in the Linux binary compatibility module in FreeBSD 3.x through 5.x allows local users to gain root privileges via long filenames in the linux shadow file system.
CVE-2004-0602 1 Freebsd 1 Freebsd 2026-04-16 N/A
The binary compatibility mode for FreeBSD 4.x and 5.x does not properly handle certain Linux system calls, which could allow local users to access kernel memory to gain privileges or cause a system panic.
CVE-1999-0820 1 Freebsd 1 Freebsd 2026-04-16 N/A
FreeBSD seyon allows users to gain privileges via a modified PATH variable for finding the xterm and seyon-emu commands.
CVE-1999-0130 7 Bsdi, Caldera, Eric Allman and 4 more 7 Bsd Os, Network Desktop, Sendmail and 4 more 2026-04-16 N/A
Local users can start Sendmail in daemon mode and gain root privileges.
CVE-1999-0782 3 Freebsd, Kde, Linux 3 Freebsd, Kde, Linux Kernel 2026-04-16 N/A
KDE kppp allows local users to create a directory in an arbitrary location via the HOME environmental variable.
CVE-2004-0079 23 4d, Apple, Avaya and 20 more 67 Webstar, Mac Os X, Mac Os X Server and 64 more 2026-04-16 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-2003-1289 2 Freebsd, Netbsd 2 Freebsd, Netbsd 2026-04-16 N/A
The iBCS2 system call translator for statfs in NetBSD 1.5 through 1.5.3 and FreeBSD 4 up to 4.8-RELEASE-p2 and 5 up to 5.1-RELEASE-p1 allows local users to read portions of kernel memory (memory disclosure) via a large length parameter, which copies additional kernel memory into userland memory.
CVE-1999-0131 8 Bsdi, Digital, Eric Allman and 5 more 9 Bsd Os, Osf 1, Sendmail and 6 more 2026-04-16 N/A
Buffer overflow and denial of service in Sendmail 8.7.5 and earlier through GECOS field gives root access to local users.
CVE-2000-0752 1 Freebsd 1 Freebsd 2026-04-16 N/A
Buffer overflows in brouted in FreeBSD and possibly other OSes allows local users to gain root privileges via long command line arguments.
CVE-1999-0761 1 Freebsd 1 Freebsd 2026-04-16 N/A
Buffer overflow in FreeBSD fts library routines allows local user to modify arbitrary files via the periodic program.
CVE-1999-0078 10 Bsdi, Freebsd, Hp and 7 more 11 Bsd Os, Freebsd, Hp-ux and 8 more 2026-04-16 N/A
pcnfsd (aka rpc.pcnfsd) allows local users to change file permissions, or execute arbitrary commands through arguments in the RPC call.