-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 _______________________________________________________________________ Mandriva Linux Security Advisory MDVSA-2014:047 http://www.mandriva.com/en/support/security/ _______________________________________________________________________ Package : postgresql Date : February 21, 2014 Affected: Business Server 1.0 _______________________________________________________________________ Problem Description: Multiple vulnerabilities has been discovered and corrected in postgresql: Granting a role without ADMIN OPTION is supposed to prevent the grantee from adding or removing members from the granted role, but this restriction was easily bypassed by doing SET ROLE first. The security impact is mostly that a role member can revoke the access of others, contrary to the wishes of his grantor. Unapproved role member additions are a lesser concern, since an uncooperative role member could provide most of his rights to others anyway by creating views or SECURITY DEFINER functions (CVE-2014-0060). The primary role of PL validator functions is to be called implicitly during CREATE FUNCTION, but they are also normal SQL functions that a user can call explicitly. Calling a validator on a function actually written in some other language was not checked for and could be exploited for privilege-escalation purposes. The fix involves adding a call to a privilege-checking function in each validator function. Non-core procedural languages will also need to make this change to their own validator functions, if any (CVE-2014-0061). If the name lookups come to different conclusions due to concurrent activity, we might perform some parts of the DDL on a different table than other parts. At least in the case of CREATE INDEX, this can be used to cause the permissions checks to be performed against a different table than the index creation, allowing for a privilege escalation attack (CVE-2014-0062). The MAXDATELEN constant was too small for the longest possible value of type interval, allowing a buffer overrun in interval_out(). Although the datetime input functions were more careful about avoiding buffer overrun, the limit was short enough to cause them to reject some valid inputs, such as input containing a very long timezone name. The ecpg library contained these vulnerabilities along with some of its own (CVE-2014-0063). Several functions, mostly type input functions, calculated an allocation size without checking for overflow. If overflow did occur, a too-small buffer would be allocated and then written past (CVE-2014-0064). Use strlcpy() and related functions to provide a clear guarantee that fixed-size buffers are not overrun. Unlike the preceding items, it is unclear whether these cases really represent live issues, since in most cases there appear to be previous constraints on the size of the input string. Nonetheless it seems prudent to silence all Coverity warnings of this type (CVE-2014-0065). There are relatively few scenarios in which crypt() could return NULL, but contrib/chkpass would crash if it did. One practical case in which this could be an issue is if libc is configured to refuse to execute unapproved hashing algorithms (e.g., FIPS mode) (CVE-2014-0066). Since the temporary server started by make check uses trust authentication, another user on the same machine could connect to it as database superuser, and then potentially exploit the privileges of the operating-system user who started the tests. A future release will probably incorporate changes in the testing procedure to prevent this risk, but some public discussion is needed first. So for the moment, just warn people against using make check when there are untrusted users on the same machine (CVE-2014-0067). This advisory provides the latest version of PostgreSQL that is not vulnerable to these issues. _______________________________________________________________________ References: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-0060 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-0061 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-0062 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-0063 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-0064 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-0065 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-0066 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-0067 http://www.postgresql.org/docs/9.2/static/release-9-2-5.html http://www.postgresql.org/docs/9.2/static/release-9-2-6.html http://www.postgresql.org/docs/9.2/static/release-9-2-7.html _______________________________________________________________________ Updated Packages: Mandriva Business Server 1/X86_64: 79694cb7b4dd67569529507531e9f43c mbs1/x86_64/lib64ecpg9.2_6-9.2.7-1.mbs1.x86_64.rpm 71413fef641ef26dfd364cc0417ec002 mbs1/x86_64/lib64pq9.2_5-9.2.7-1.mbs1.x86_64.rpm 3cac01a8f005e1b66c8f5e5f2beb500e mbs1/x86_64/postgresql9.2-9.2.7-1.mbs1.x86_64.rpm 6fa82ca3338f6b621a1224107e82c4a2 mbs1/x86_64/postgresql9.2-contrib-9.2.7-1.mbs1.x86_64.rpm 713b25468183ad23d7db2c95367def9c mbs1/x86_64/postgresql9.2-devel-9.2.7-1.mbs1.x86_64.rpm f88d066354f88a3cc7c65bafb4dba438 mbs1/x86_64/postgresql9.2-docs-9.2.7-1.mbs1.noarch.rpm 6b98f768d9345669d883b5d24493726e mbs1/x86_64/postgresql9.2-pl-9.2.7-1.mbs1.x86_64.rpm eb75e37124d82a102335fe7cdfdc1ba9 mbs1/x86_64/postgresql9.2-plperl-9.2.7-1.mbs1.x86_64.rpm 213b461056d052adc26a681a415a3390 mbs1/x86_64/postgresql9.2-plpgsql-9.2.7-1.mbs1.x86_64.rpm bfd35ced63664bd21f38d92729e94b0d mbs1/x86_64/postgresql9.2-plpython-9.2.7-1.mbs1.x86_64.rpm 18d86e7a4b61656b1b1dc7bdf67c45fc mbs1/x86_64/postgresql9.2-pltcl-9.2.7-1.mbs1.x86_64.rpm ea94bae659957662f9247b13285391e8 mbs1/x86_64/postgresql9.2-server-9.2.7-1.mbs1.x86_64.rpm f512d51c07fa28546fa2dbbbebfe04f9 mbs1/SRPMS/postgresql9.2-9.2.7-1.mbs1.src.rpm _______________________________________________________________________ To upgrade automatically use MandrivaUpdate or urpmi. The verification of md5 checksums and GPG signatures is performed automatically for you. All packages are signed by Mandriva for security. You can obtain the GPG public key of the Mandriva Security Team by executing: gpg --recv-keys --keyserver pgp.mit.edu 0x22458A98 You can view other update advisories for Mandriva Linux at: http://www.mandriva.com/en/support/security/advisories/ If you want to report vulnerabilities, please contact security_(at)_mandriva.com _______________________________________________________________________ Type Bits/KeyID Date User ID pub 1024D/22458A98 2000-07-10 Mandriva Security Team <security*mandriva.com> -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iD8DBQFTB4WfmqjQ0CJFipgRAlaqAJ9bkVWpCWdqrmS8++MyfhjKFCcLPgCcC0xe JhShzLbEybporLpUPXpdFgQ= =Ky+m -----END PGP SIGNATURE-----
