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PostgreSQL 8.1.x before 8.1.4, 8.0.x before 8.0.8, 7.4.x before 7.4.13, 7.3.x before 7.3.15, and earlier versions allows context-dependent attackers to bypass SQL injection protection methods in applications that use multibyte encodings that allow the "\" (backslash) byte 0x5c to be the trailing byte of a multibyte character, such as SJIS, BIG5, GBK, GB18030, and UHC, which cannot be handled correctly by a client that does not understand multibyte encodings, aka a second variant of "Encoding-Based SQL Injection." NOTE: it could be argued that this is a class of issue related to interaction errors between the client and PostgreSQL, but a CVE has been assigned since PostgreSQL is treating this as a preventative measure against this class of problem.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade pygresql | Jul 30, 2024 | May 24, 2006 |
| Freebsd | — | Upgrade postgresqlUpgrade postgresql-serverUpgrade ja-postgresql | Dec 10, 2025 | Aug 13, 2006 |
| Gentoo Linux | — | Upgrade dev-db/postgresql. | Oct 30, 2017 | May 24, 2006 |
| Suse | — | Upgrade postgresql-develUpgrade postgresql-libs-x86Upgrade postgresql-contribUpgrade postgresql-libs-32bitUpgrade postgresql-libsUpgrade postgresql-plUpgrade postgresql-docsUpgrade postgresql-serverUpgrade postgresqlUpgrade postgresql-libs-64bit | Feb 17, 2015 | May 24, 2006 |
| Ubuntu | — | Upgrade dovecot-commonUpgrade libpq4Upgrade postfix-pgsqlUpgrade postgresql-8.1Upgrade libpq-devUpgrade postgresql-client-8.1Upgrade postgresql-contrib-8.1Upgrade exim4-daemon-heavy | Nov 8, 2024 | May 24, 2006 |
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