CentOS Update for postgresql CESA-2012:1037 centos6

Published: 2012-07-30 10:29:20
CVE Author: NIST National Vulnerability Database

CVSS Base Vector:
AV:N/AC:M/Au:N/C:N/I:P/A:N

Summary:
The remote host is missing an update for the 'postgresql' Linux Distribution Package(s) announced via the referenced advisory.

Affected Versions:
postgresql on CentOS 6

Recommendations:
Please install the updated Linux Distribution Packages.

Technical Details:
PostgreSQL is an advanced object-relational database management system (DBMS). A flaw was found in the way the crypt() password hashing function from the optional PostgreSQL pgcrypto contrib module performed password transformation when used with the DES algorithm. If the password string to be hashed contained the 0x80 byte value, the remainder of the string was ignored when calculating the hash, significantly reducing the password strength. This made brute-force guessing more efficient as the whole password was not required to gain access to protected resources. (CVE-2012-2143) Note: With this update, the rest of the string is properly included in the DES hash. Therefore, any previously stored password values that are affected by this issue will no longer match. In such cases, it will be necessary for those stored password hashes to be updated. A denial of service flaw was found in the way the PostgreSQL server performed a user privileges check when applying SECURITY DEFINER or SET attributes to a procedural language's (such as PL/Perl or PL/Python) call handler function. A non-superuser database owner could use this flaw to cause the PostgreSQL server to crash due to infinite recursion. (CVE-2012-2655) Upstream acknowledges Rubin Xu and Joseph Bonneau as the original reporters of the CVE-2012-2143 issue. These updated Linux Distribution Packages upgrade PostgreSQL to version 8.4.12, which fixes these issues as well as several non-security issues. Refer to the linked PostgreSQL Release Notes for a full list of changes. All PostgreSQL users are advised to upgrade to these updated Linux Distribution Packages, which correct these issues. If the postgresql service is running, it will be automatically restarted after installing this update.

Detection Type:
Linux Distribution Package

Solution Type:
Vendor Patch

NIST (National Institute of Standards and Technology) NVD (National Vulnerability Database)

https://nvd.nist.gov/vuln/detail/CVE-2012-2143
https://nvd.nist.gov/vuln/detail/CVE-2012-2655

References:

http://lists.centos.org/pipermail/centos-announce/2012-July/018728.html
http://www.postgresql.org/docs/8.4/static/release.html

Severity
Medium
CVSS Score
4.3
Published
2012-07-30
Modified
2019-03-15
Category
CentOS Local Security Checks

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