Multiple vulnerabilities in metamail

1. Gentoo Linux Security Advisory

Package	Vulnerable versions	Unaffected versions	Architecture(s)
net-mail/metamail	< 2.7.45.3	>= 2.7.45.3	All supported architectures

Related bugreports: #42133

Several format string bugs and buffer overflows were discovered in metamail, potentially allowing execution of arbitrary code remotely.

2. Impact Information

Metamail is a program that decodes MIME encoded mail. It is therefore often automatically called when an email is received or read.

Ulf Harnhammar found two format string bugs and two buffer overflow bugs in Metamail.

A remote attacker could send a malicious email message and execute arbitrary code with the rights of the process calling the Metamail program.

3. Resolution Information

There is no known workaround at this time.

All users of Metamail should upgrade to the latest stable version:

Code Listing 3.1: Resolution

# emerge sync
# emerge -pv ">=net-mail/metamail-2.7.45.3"
# emerge ">=net-mail/metamail-2.7.45.3"

4. References

Updated May 21, 2004

Summary: This is a Gentoo Linux Security Advisory

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