Linux Today: Linux News On Internet Time.

Security Focus: Too Cool For Secure Code

Mar 27, 2003, 20:30 (28 Talkback[s])
(Other stories by Jon Lasser)

"Most notable among these is the Linux kernel ptrace vulnerability, which allows local users to acquire root privileges. Next, there is a clever timing attack against OpenSSL that can reveal a site's private key and thus compromise all of its traffic. There is also the mysql configuration file vulnerability, whereby a malicious user can write out a file that will allow him to acquire full privileges; a buffer overflow and local root exploit in the venerable lpr print daemon; a buffer overflow and potential root exploit in the Mutt mail reader's IMAP code; and a glibc integer overflow that allows remote code execution via RPC.

"Also reported in the last three weeks are perhaps a dozen more security holes in programs including file, ethereal, ircii, qpopper, Evolution, rxvt, Samba, and others. These are, by and large, holes discovered and reported by the good guys--there's no telling what black-hat hackers have discovered.

"Most of these bugs are buffer overflows, format string vulnerabilities and input validation errors. In short, these are the same sort of holes that we've seen over and over again for years. Format string vulnerabilities are new, discovered circa 1999; the other two classes of bugs have been known and actively exploited on Unix for quite a while: the first Internet worm exploited a buffer overflow in Finger in 1988.

"Why do we still see these bugs...?"

Complete Story

Related Stories: