CVE-2009-0641
Critical
Description
sys_term.c in telnetd in FreeBSD 7.0-RELEASE and other 7.x versions deletes dangerous environment variables with a method that was valid only in older FreeBSD distributions, which might allow remote attackers to execute arbitrary code by passing a crafted environment variable from a telnet client, as demonstrated by an LD_PRELOAD value that references a malicious library.
SeverityCritical
CVSS9.3
Exploit probability—
Product
Freebsd
PublishedFeb 20, 2009
First seenFeb 20, 2009
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| freebsd freebsd | 7.0, 7.0-release, 7.0_beta4, 7.0_releng, 7.1 | — |
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