l2tpd write_packet buffer overflow
| l2tpd-writepacket-bo (16326) |  Medium Risk |
Description:
l2tpd is vulnerable to a buffer overflow in the write_packet function in the control.c file, caused by improper bounds checking of user-supplied input. By sending a specially-crafted packet, a remote attacker could overflow a buffer and possibly execute arbitrary code on the system.
Consequences:
Other
Remedy:
For Debian GNU/Linux 3.0 (alias woody):
Upgrade to the latest l2tpd package (0.67-1.2 or later), as listed in DSA-530-1. See References.
For Gentoo Linux:
Upgrade to the latest version of l2tpd (0.69-r2 or later), as listed in GLSA 200407-17. See References.
For other distributions:
Contact your vendor for upgrade or patch information.
References:
- Full-Disclosure Mailing List, Fri Jun 04 2004 - 13:53:52 CDT : bss-based buffer overflow in l2tpd.
- BID-10466: L2TPD Write_Packet Block BSS based Buffer Overflow Vulnerability
- CVE-2004-0649: Buffer overflow in write_packet in control.c for l2tpd may allow remote attackers to execute arbitrary code.
- DSA-530: l2tpd -- buffer overflow
- GLSA-200407-17: l2tpd: Buffer overflow
Platforms Affected:
- Debian Debian Linux 3.0
- Gentoo Linux
- l2tpd Project l2tpd 0.64
Reported:
Jun 04, 2004
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