ypserv -- Inoperative access controls in ypserv

Problem Description There are two documented methods of restricting access to NIS maps through ypserv8: through the use of the /var/yp/securenets file, and through the /etc/hosts.allow file. While both mechanisms are implemented in the server, a change in the build process caused the "securenets"...

CVE-2006-0381

The CVE-2006-0381 entry describes a logic bug in pf's IP fragment cache that can cause a fragment to be inserted twice when using the pf rules scrub fragment crop or scrub fragment drop-ovl. Affected products include FreeBSD 5.3, 5.4, and 6.0, and OpenBSD. The impact is remote denial of service (...

CVE-2006-0381

A logic error in the IP fragment cache functionality in pf in FreeBSD 5.3, 5.4, and 6.0, and OpenBSD, when a 'scrub fragment crop' or 'scrub fragment drop-ovl' rule is being used, allows remote attackers to cause a denial of service crash via crafted packets that cause a packet fragment to be...

FreeBSD-SA-06:07.pf

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ============================================================================= FreeBSD-SA-06:07.pf Security Advisory The FreeBSD Project Topic: IP fragment handling panic in pf4 Category: contrib Module: syscontrib Announced: 2006-01-25 Credits: Jakob...

[SA18609] FreeBSD "pf" IP Fragment Denial of Service Vulnerability

TITLE: FreeBSD "pf" IP Fragment Denial of Service Vulnerability SECUNIA ADVISORY ID: SA18609 VERIFY ADVISORY: http://secunia.com/advisories/18609/ CRITICAL: Moderately critical IMPACT: DoS WHERE: From remote OPERATING SYSTEM: FreeBSD 6.x http://secunia.com/product/6778/ FreeBSD 5.x...

pf -- IP fragment handling panic

Problem description: A logic bug in pf's IP fragment cache may result in a packet fragment being inserted twice, violating a kernel invariant. Impact: By sending carefully crafted sequence of IP packet fragments, a remote attacker can cause a system running pf with a ruleset containing a 'scrub...

CVE-2004-1799

CVE-2004-1799 describes a vulnerability in PF (packet filter) on certain OpenBSD versions where, when stateful filtering is enabled, packets for a session are not limited to the original interface. This allows a remote attacker to bypass intended packet filters by sending spoofed packets to other...

CVE-2004-1799

PF in certain OpenBSD versions, when stateful filtering is enabled, does not limit packets for a session to the original interface, which allows remote attackers to bypass intended packet filters via spoofed packets to other interfaces...

OpenBSD 3.x - PF RDR Network Information Leakage

OpenBSD 3.x - PF RDR Network Information Leakage source: https://www.securityfocus.com/bid/8082/info OpenBSD PF is prone to an information leakage vulnerability when configured to redirect incoming traffic from standard ports to high ports. This occurs because PF responds different to packets...

OpenBSD 3.x - PF RDR Network Information Leakage

source: https://www.securityfocus.com/bid/8082/info OpenBSD PF is prone to an information leakage vulnerability when configured to redirect incoming traffic from standard ports to high ports. This occurs because PF responds different to packets destined for active private addresses than to those...

CVE-2002-0514

PF in OpenBSD 3.0 with the return-rst rule sets the TTL to 128 in the RST packet, which allows remote attackers to determine if a port is being filtered because the TTL is different than the default TTL...

CVE-2002-0514

OpenBSD 3.0 PF with the return-rst rule is vulnerable. The RST packet’s TTL is set to 128, allowing remote attackers to infer whether a port is filtered by comparing TTL to the default. Affected component: PF rule handling in OpenBSD 3.0. Root cause: TTL manipulation in RST responses leads to dis...