What’s Vulnerable › Vulnerabilities

CVE-2012-3523

• Severity: medium (CVSS 6.8 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2012-11-11 · updated 2026-06-16
• Weakness: CWE-264

Description

The STARTTLS implementation in nnrpd in INN before 2.5.3 does not properly restrict I/O buffering, which allows man-in-the-middle attackers to insert commands into encrypted sessions by sending a cleartext command that is processed after TLS is in place, related to a "plaintext command injection" attack, a similar issue to CVE-2011-0411.

Affected products

• ISC Inn: through 2.5.2; 1.4, 1.4sec, 1.4sec2, 1.4unoff3, 1.4unoff4, 1.5 (+10)

References

• http://lists.opensuse.org/opensuse-updates/2012-09/msg00058.html
• http://secunia.com/advisories/50661
• http://www.mandriva.com/security/advisories?name=MDVSA-2012:156
• http://lists.opensuse.org/opensuse-updates/2012-09/msg00058.html
• http://secunia.com/advisories/50661
• http://www.mandriva.com/security/advisories?name=MDVSA-2012:156

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