Caldera OpenUnix and UnixWare /usr/X/bin/Xsco buffer overflow
| openunix-unixware-xsco-bo (9977) |  High Risk |
Description:
Caldera OpenUnix is vulnerable to a buffer overflow in the X server (Xsco). By calling a program such as xkbcomp with an overly long argument, a local attacker could overflow a buffer and execute code on the system.
Platforms Affected:
- SCO, Caldera OpenUnix 8.0.0
- SCO, Caldera UnixWare 7.1.1
Remedy:
Apply the erg711819b patch, as listed in SCO Security Advisory CSSA-2002-SCO.38. See References.
Consequences:
Gain Privileges
References:
- Caldera International, Inc. Security Advisory CSSA-2002-SCO.38, Open UNIX 8.0.0 UnixWare 7.1.1 : X server insecure popen and buffer overflow at ftp://ftp.sco.com/pub/updates/OpenUNIX/CSSA-2002-SCO.38/CSSA-2002-SCO.38.txt.
- BID-5577: Caldera X Server Unspecified Buffer Overflow Vulnerability
- CVE-2002-0988: Buffer overflow in X server (Xsco) in OpenUNIX 8.0.0 and UnixWare 7.1.1, possibly related to XBM/xkbcomp capabilities.
Reported:
Aug 26, 2002
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