FreeBSD : isc-dhcp -- multiple vulnerabilities (c7fa3618-d5ff-11e1-90a2-000c299b62e1)

NASLDB: FreeBSD : isc-dhcp -- multiple vulnerabilities (c7fa3618-d5ff-11e1-90a2-000c299b62e1)

General

ID: 60115
Name: FreeBSD : isc-dhcp — multiple vulnerabilities (c7fa3618-d5ff-11e1-90a2-000c299b62e1)

Summary: Checks for updated packages in pkg_info output

Credits: Tenable Network Security, Inc.

Classification

Risk: –

CVSS: –
CVSS Base Vector: CVSS2#AV:A/AC:L/Au:N/C:N/I:N/A:C
CVSS Temporal Vector: –

Port: 0
Family: FreeBSD Local Security Checks
Type: Local

Description

ISC reports :

An unexpected client identifier parameter can cause the ISC DHCP
daemon to segmentation fault when running in DHCPv6 mode, resulting in
a denial of service to further client requests. In order to exploit
this condition, an attacker must be able to send requests to the DHCP
server.

An error in the handling of malformed client identifiers can cause a
DHCP server running affected versions (see ‘Impact’) to enter a state
where further client requests are not processed and the server process
loops endlessly, consuming all available CPU cycles. Under normal
circumstances this condition should not be triggered, but a
non-conforming or malicious client could deliberately trigger it in a
vulnerable server. In order to exploit this condition an attacker must
be able to send requests to the DHCP server.

Two memory leaks have been found and fixed in ISC DHCP. Both are
reproducible when running in DHCPv6 mode (with the -6 command-line
argument.) The first leak is confirmed to only affect servers
operating in DHCPv6 mode, but based on initial code analysis the
second may theoretically affect DHCPv4 servers (though this has not
been demonstrated.)

Exploiting

Exploit Available: –
Exploitability Ease: –

Sources

CVE: CVE-2012-3570
OSVDB: –
Bugtraq: –
scipID: –

Timeline

Vulnerability Disclosure: 2012/07/24
Patch Release: 2012/07/25
Plugin Release: 2012/07/25

Plugin

Version: 1.3
Filename: freebsd_pkg_c7fa3618d5ff11e190a2000c299b62e1.nasl
Filesize: 5516 bytes
MD5 Hash: 730f097d4d1999c0617ea8d444bd20af

Identification: Host/local_checks_enabled
Require Keys: Host/local_checks_enabled", "Host/FreeBSD/release", "Host/FreeBSD/pkg_info
Dependencies: "ssh_get_info.nasl"

Letzte Plugins

Letzte Plugins

scip AG