Hanterm long command-line argument buffer overflow
| hanterm-command-line-bo (8109) |  High Risk |
Description:
Hanterm is vulnerable to several local buffer overflow vulnerabilities. By sending an overly long argument to hanterm using the -fn, -hfb, or -hfn command-line argument, a local attacker could overflow a buffer and execute arbitrary commands on the system with root privileges.
Consequences:
Gain Privileges
Remedy:
For FreeBSD ports collection prior to 29-May-2001:
Upgrade to the latest version of ko-hanterm (3.1.5_1 dated 2001-05-29 or later) and ko-hanterm-xf (19_1 dated 2001-05-29 or later), as listed in FreeBSD, Inc. Security Advisory FreeBSD-SA-01:41. See References.
For Debian GNU/Linux 2.2 (potato):
Upgrade to the latest version of hanterm (3.3.1p17-5.2 or later), as listed in DSA-112-1. See References.
For other distributions:
Contact your vendor for upgrade or patch information.
References:
- BugTraq Mailing List, Thu Feb 07 2002 - 04:33:27 CST: Overflow Vulnerabilities in hanterm.
- BugTraq Mailing List, Thu Feb 07 2002 - 13:30:56 CST: another hanterm exploit.
- FreeBSD Security Advisory FreeBSD-SA-01:41: hanterm ports allow local root compromise.
- Freshmeat Web site: freshmeat.net: Project details for hanterm.
- BID-4050: Hanterm Local Buffer Overflow Vulnerability
- CVE-2002-0239: Buffer overflow in hanterm 3.3.1 and earlier allows local users to execute arbitrary code via a long string in the (1) -fn, (2) -hfb, or (3) -hfn argument.
- DSA-112: hanterm -- buffer overflow
- OSVDB ID: 14336: hanterm Multiple Command Parameter Local Overflow
- SECTRACK ID: 1001950: Hanterm Korean Language Xterm Utility Lets Local Users Compromise the System and Obtain Root Level Privileges
Platforms Affected:
- Debian Debian Linux 2.2
- FreeBSD FreeBSD
- Jake Song hanterm
- Turbolinux Turbolinux Server 6.5
Reported:
Feb 07, 2002
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