ID de Prueba:	1.3.6.1.4.1.25623.1.0.120570
Categoría:	Amazon Linux Local Security Checks
Título:	Amazon Linux: Security Advisory (ALAS-2011-12)
Resumen:	The remote host is missing an update for the 'postgresql' package(s) announced via the ALAS-2011-12 advisory.
Descripción:	Summary: The remote host is missing an update for the 'postgresql' package(s) announced via the ALAS-2011-12 advisory. Vulnerability Insight: A signedness issue was found in the way the crypt() function in the PostgreSQL pgcrypto module handled 8-bit characters in passwords when using Blowfish hashing. Up to three characters immediately preceding a non-ASCII character (one with the high bit set) had no effect on the hash result, thus shortening the effective password length. This made brute-force guessing more efficient as several different passwords were hashed to the same value. (CVE-2011-2483) Note: Due to the CVE-2011-2483 fix, after installing this update some users may not be able to log in to applications that store user passwords, hashed with Blowfish using the PostgreSQL crypt() function, in a back-end PostgreSQL database. Unsafe processing can be re-enabled for specific passwords (allowing affected users to log in) by changing their hash prefix to '$2x$'. Affected Software/OS: 'postgresql' package(s) on Amazon Linux. Solution: Please install the updated package(s). CVSS Score: 5.0 CVSS Vector: AV:N/AC:L/Au:N/C:P/I:N/A:N
Referencia Cruzada:	Common Vulnerability Exposure (CVE) ID: CVE-2011-2483 http://lists.apple.com/archives/security-announce/2012/Feb/msg00000.html BugTraq ID: 49241 http://www.securityfocus.com/bid/49241 Debian Security Information: DSA-2340 (Google Search) http://www.debian.org/security/2011/dsa-2340 Debian Security Information: DSA-2399 (Google Search) http://www.debian.org/security/2012/dsa-2399 http://www.mandriva.com/security/advisories?name=MDVSA-2011:165 http://www.mandriva.com/security/advisories?name=MDVSA-2011:178 http://www.mandriva.com/security/advisories?name=MDVSA-2011:179 http://www.mandriva.com/security/advisories?name=MDVSA-2011:180 http://freshmeat.net/projects/crypt_blowfish http://www.redhat.com/support/errata/RHSA-2011-1377.html http://www.redhat.com/support/errata/RHSA-2011-1378.html http://www.redhat.com/support/errata/RHSA-2011-1423.html SuSE Security Announcement: SUSE-SA:2011:035 (Google Search) http://lists.opensuse.org/opensuse-security-announce/2011-08/msg00015.html http://www.ubuntu.com/usn/USN-1229-1 XForce ISS Database: php-cryptblowfish-info-disclosure(69319) https://exchange.xforce.ibmcloud.com/vulnerabilities/69319
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