Secunia Security Advisory - A vulnerability has been reported in Postfix, which can be exploited by malicious people to manipulate certain data.
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TITLE:
Postfix "STARTTLS" Plaintext Injection Vulnerability
SECUNIA ADVISORY ID:
SA43646
VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/43646/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=43646
RELEASE DATE:
2011-03-09
DISCUSS ADVISORY:
http://secunia.com/advisories/43646/#comments
AVAILABLE ON SITE AND IN CUSTOMER AREA:
* Last Update
* Popularity
* Comments
* Criticality Level
* Impact
* Where
* Solution Status
* Operating System / Software
* CVE Reference(s)
http://secunia.com/advisories/43646/
ONLY AVAILABLE IN CUSTOMER AREA:
* Authentication Level
* Report Reliability
* Secunia PoC
* Secunia Analysis
* Systems Affected
* Approve Distribution
* Remediation Status
* Secunia CVSS Score
* CVSS
https://ca.secunia.com/?page=viewadvisory&vuln_id=43646
ONLY AVAILABLE WITH SECUNIA CSI AND SECUNIA PSI:
* AUTOMATED SCANNING
http://secunia.com/vulnerability_scanning/personal/
http://secunia.com/vulnerability_scanning/corporate/wsus_sccm_3rd_third_party_patching/
DESCRIPTION:
A vulnerability has been reported in Postfix, which can be exploited
by malicious people to manipulate certain data.
The vulnerability is caused due to the TLS implementation not
properly clearing transport layer buffers when upgrading from
plaintext to ciphertext after receiving the "STARTTLS" command. This
can be exploited to insert arbitrary plaintext data (e.g. SMTP
commands) during the plaintext phase, which will then be executed
after upgrading to the TLS ciphertext phase.
The vulnerability is reported in version 2.2 and all releases prior
to versions 2.4.16, 2.5.12, 2.6.9, and 2.7.3.
SOLUTION:
Update to versions 2.4.16, 2.5.12, 2.6.9, and 2.7.3.
PROVIDED AND/OR DISCOVERED BY:
Reported by the vendor.
ORIGINAL ADVISORY:
http://www.postfix.org/CVE-2011-0411.html
OTHER REFERENCES:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/
DEEP LINKS:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/
EXTENDED DESCRIPTION:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/
EXTENDED SOLUTION:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/
EXPLOIT:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/
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About:
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use those supplied by the vendor.
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