FreeBSD 安全漏洞

FreeBSD is a Unix-like operating system developed by the FreeBSD Foundation. There is a security vulnerability in FreeBSD, which stems from issues with hash calculations. This vulnerability may cause rules that use address-range syntax to be silently discarded, resulting in unexpected behaviors...

FreeBSD Buffer Overflow Vulnerability (CNVD-2026-16037)

FreeBSD is a set of Unix-like operating systems from the FreeBSD Foundation. A buffer overflow vulnerability exists in FreeBSD. The vulnerability stems from the routine to verify packet signatures in the RPCSECGSS implementation of kgssapi.ko not properly verifying data boundaries, which can be...

FreeBSD : Roundcube -- SVG Attribute Bypass (095e9db2-2b5b-11f1-9839-8447094a420f)

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the 095e9db2-2b5b-11f1-9839-8447094a420f advisory. The Roundcube project reports: . Tenable has extracted the preceding description block directly from th...

FreeBSD : Gitlab -- vulnerabilities (b933083e-2b2e-11f1-b60a-2cf05da270f3)

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the b933083e-2b2e-11f1-b60a-2cf05da270f3 advisory. Gitlab reports: Improper Handling of Parameters issue in Jira Connect installations impacts...

FreeBSD : traefik -- Multiple vulnerabilities (09e36f7e-2b5b-11f1-852e-5404a68ad561)

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the 09e36f7e-2b5b-11f1-852e-5404a68ad561 advisory. The traefik project releases a new version addressing multiple CVEs: Tenable has extracted the...

FreeBSD : jenkins -- multiple vulnerabilities (970fd0ec-26f5-11f1-a9b1-0cc47ada5f32)

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the 970fd0ec-26f5-11f1-a9b1-0cc47ada5f32 advisory. Jenkins Security Advisory 2026-03-18: Tenable has extracted the preceding description block...

CVE-2026-4748

creationtimestamp| type| source ---|---|--- 2026-03-27 13:50:17+00:00| seen| https://cyber.gc.ca/en/alerts-advisories/freebsd-security-advisory-av26-291 2026-04-01 08:40:44+00:00| seen| https://bsky.app/profile/cve.skyfleet.blue/post/3migc73qfpe2i 2026-04-01 16:30:00+00:00| seen|...

EUVD-2026-16128

When a challenge ACK is to be sent tcprespond constructs and sends the challenge ACK and consumes the mbuf that is passed in. When no challenge ACK should be sent the function returns and leaks the mbuf. If an attacker is either on path with an established TCP connection, or can themselves...

CVE-2026-4247

When a challenge ACK is to be sent tcprespond constructs and sends the challenge ACK and consumes the mbuf that is passed in. When no challenge ACK should be sent the function returns and leaks the mbuf. If an attacker is either on path with an established TCP connection, or can themselves...

CVE-2026-4247

CVE-2026-4247 affects FreeBSD TCP implementations (bases: 14.x, 15.x/releng) where, when a challenge ACK should be sent, tcp_respond() consumes the mbuf and can leak the mbuf if no ACK is sent. An attacker on-path or able to establish a TCP connection can craft packets that trigger a challenge AC...

CVE-2026-4247 TCP: remotely exploitable DoS vector (mbuf leak)

When a challenge ACK is to be sent tcprespond constructs and sends the challenge ACK and consumes the mbuf that is passed in. When no challenge ACK should be sent the function returns and leaks the mbuf. If an attacker is either on path with an established TCP connection, or can themselves...

CVE-2026-4247 TCP: remotely exploitable DoS vector (mbuf leak)

When a challenge ACK is to be sent tcprespond constructs and sends the challenge ACK and consumes the mbuf that is passed in. When no challenge ACK should be sent the function returns and leaks the mbuf. If an attacker is either on path with an established TCP connection, or can themselves...

CVE-2026-4247

When a challenge ACK is to be sent tcprespond constructs and sends the challenge ACK and consumes the mbuf that is passed in. When no challenge ACK should be sent the function returns and leaks the mbuf. If an attacker is either on path with an established TCP connection, or can themselves...

FreeBSD Security Advisory - FreeBSD-SA-26:08.rpcsec_gss

FreeBSD Security Advisory - Each RPCSECGSS 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...

FreeBSD Security Advisory - FreeBSD-SA-26:06.tcp

FreeBSD Security Advisory - When a challenge ACK is to be sent tcprespond constructs and sends the challenge ACK and consumes the mbuf that is passed in. When no challenge ACK should be sent the function returns and leaks the mbuf...

FreeBSD : FreeBSD -- Remote code execution via RPCSEC_GSS packet validation (733febba-28d2-11f1-b35e-bc241121aa0a)

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the 733febba-28d2-11f1-b35e-bc241121aa0a advisory. Each RPCSECGSS data packet is validated by a routine which checks a signature in the packet. This routi...

FreeBSD-SA-26:07.nvmf

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 ============================================================================= FreeBSD-SA-26:07.nvmf Security Advisory The FreeBSD Project Topic: Remote denial of service via null pointer dereference Category: core Module: nvmf Announced: 2026-03-26...

FreeBSD-SA-26:06.tcp

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 ============================================================================= FreeBSD-SA-26:06.tcp Security Advisory The FreeBSD Project Topic: TCP: remotely exploitable DoS vector mbuf leak Category: core Module: tcp Announced: 2026-03-26 Credits:...

FreeBSD-SA-26:09.pf

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 ============================================================================= FreeBSD-SA-26:09.pf Security Advisory The FreeBSD Project Topic: pf silently ignores certain rules Category: core Module: pf Announced: 2026-03-25 Credits: Michael Gmelin...

FreeBSD Security Advisory - FreeBSD-SA-26:07.nvmf

FreeBSD Security Advisory - On a system exposing an NVMe/TCP target, a remote client can trigger a kernel panic by sending a CONNECT command for an I/O queue with a bogus or stale CNTLID...