MIT PGP Public Key Server search string buffer overflow
|pgp-pks-search-bo (9171)||High Risk|
PGP Public Key Server is vulnerable to a buffer overflow, caused by improper bounds checking of remote search requests. By sending an overly long search string to a vulnerable server, a remote attacker could overflow a buffer and execute arbitrary code on the system with elevated privileges or cause the server to crash.
Download and install version 0.9.5 or later from the OpenPGP Public Key Server Web page. See References.
If upgrading to the latest version is not possible, apply the source code patch located at the Server RUBIN.CH Web page. See References.
- BugTraq Mailing List, Fri May 24 2002 - 17:39:06 CDT: pks public key server DOS and remote execution.
- OpenPGP Public Key Server Web site: OpenPGP Public Key Server.
- PGP Public Key Server Web site: PGP Public Key Server.
- Server RUBIN.CH Web site: Source code patch.
- BID-4828: MIT PGP Public Key Server Search String Remote Buffer Overflow Vulnerability
- CVE-2002-0900: Buffer overflow in pks PGP public key web server before 0.9.5 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a long search argument to the lookup capability.
- OSVDB ID: 4743: MIT PGP Public Key Server Search String Overflow
- MIT PGP Public Key Server 0.9.2
- MIT PGP Public Key Server 0.9.4
May 24, 2002
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