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Smail-3 "Mail From" Buffer Overflow and Signal Handling Vulnerabilities
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Secunia Advisory:
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SA14733
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Release Date:
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2005-03-29
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Last Update:
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2005-05-09
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Popularity:
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6,301 views
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Critical:
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Highly critical
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Impact:
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Privilege escalation
System access
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Where:
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From remote
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Solution Status:
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Vendor Patch
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| Software: | Smail-3 3.x
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Secunia CVSS-2 Score:
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| Advisory Content (Page 1 of 3) | [ 1 ] [ 2 ] [ 3 ] | |
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Description:
infamous41md has reported some vulnerabilities in Smail-3, which potentially can be exploited by malicious, local users to gain escalated privileges and by malicious people to compromise a vulnerable system.
1) A boundary error within the SMTP server when handling email addresses can be exploited to cause a heap-based buffer overflow by passing an overly long string to the "MAIL FROM" command.
According to the reporter, this can be exploited to execute arbitrary code and a PoC has been released. However, this is disputed by the vendor.
2) Some design errors exist within the signal handling code. This may potentially be exploited by malicious, local users to execute arbitrary code with escalated privileges, but has reportedly not been tested by the reporter.
The vulnerabilities have been reported in smail-3.2.0.120. Other versions may also be affected.
Change Page:
[ 1 ] [ 2 ] [ 3 ]
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
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