| Name | CVE-2026-78183 |
| Description | DBD::Pg version 3.21.0 for Perl has a heap out-of-bounds write in quote_float. 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. This can be reached by the $dbh->quote method, for example $dbh->quote( "Infinity", DBI::SQL_NUMERIC ). This regression was introduced in 3.21.0 by the quote.c rewrite. |
| Source | CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| libdbd-pg-perl (PTS) | bullseye | 3.14.2-1 | fixed |
| bookworm | 3.16.0-2 | fixed | |
| trixie | 3.18.0-1 | fixed | |
| forky, sid | 3.20.2-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| libdbd-pg-perl | source | (unstable) | (not affected) |
- libdbd-pg-perl <not-affected> (Vulnerable code not present)
https://lists.security.metacpan.org/cve-announce/msg/42931839/
https://github.com/bucardo/dbdpg/security/advisories/GHSA-785p-fw3v-r822
Fixed by: https://github.com/bucardo/dbdpg/commit/6d6f47ed2403cda55c82b1bad56e388ba7390065