CVE-2026-78183
Gravedad:
Pendiente de análisis
Tipo:
CWE-787
Escritura fuera de límites
Fecha de publicación:
23/08/2026
Última modificación:
23/08/2026
Descripción
*** Pendiente de traducción *** DBD::Pg version 3.21.0 for Perl has a heap out-of-bounds write in quote_float.<br />
<br />
quote_float() allocates the length of the string + 1, which is the size of the bare numeric symbol plus NULL. But for special literals NaN, Inf, +Inf, -Inf, Infinity, +Infinity, -Infinity it emits the literal surrounded by quotes plus NULL, which is length + 3 bytes. Every recognised literal (case-insensitive) overflows by 2 bytes, a single quote and a NULL.<br />
<br />
This can be reached by the $dbh->quote method, for example<br />
<br />
$dbh->quote( "Infinity", DBI::SQL_NUMERIC ).<br />
<br />
This regression was introduced in 3.21.0 by the quote.c rewrite.
Impacto
Referencias a soluciones, herramientas e información
- https://github.com/bucardo/dbdpg/commit/6d6f47ed2403cda55c82b1bad56e388ba7390065.patch
- https://github.com/bucardo/dbdpg/commit/adacf1de872326a465e13f9e4281a674ebcd227e
- https://github.com/bucardo/dbdpg/security/advisories/GHSA-785p-fw3v-r822
- https://metacpan.org/release/TURNSTEP/DBD-Pg-3.21.1/source/Changes
- http://www.openwall.com/lists/oss-security/2026/08/23/5


