Hi,

The following vulnerability was published for libdbi-perl.

CVE-2026-73193[0]:
| DBI versions before 1.652 for Perl allow a heap out-of-bounds write
| on 32-bit perl via an integer wraparound in the output buffer size
| computed by preparse.  preparse reserves its output buffer with
| `newSV(strlen(statement) * 7 + 16)`, budgeting seven output bytes
| per input byte for the longest ':p99999' expansion. The product is
| computed in STRLEN, which is 32 bits wide on a 32-bit perl build, so
| a statement of 613,566,757 bytes multiplies to 4,294,967,299, wraps
| modulo 2^32 to 3, and reserves 19 bytes. The parser then copies the
| statement out through a raw pointer with no capacity check, writing
| the whole 585 MB input past the end of the allocation. The 99,999
| placeholder limit does not bound this path, which is reached by
| ordinary non-placeholder content.  Any caller that passes an
| untrusted statement of that length to preparse on a 32-bit perl gets
| a heap out-of-bounds write of attacker controlled bytes. Builds with
| a 64-bit STRLEN are not affected, since the wrap there needs a
| statement of about 2.3 exabytes.


If you fix the vulnerability please also make sure to include the
CVE (Common Vulnerabilities & Exposures) id in your changelog entry.

For further information see:

[0] https://security-tracker.debian.org/tracker/CVE-2026-73193
https://www.cve.org/CVERecord?id=CVE-2026-73193
[1] https://lists.security.metacpan.org/cve-announce/msg/42707360/

Please adjust the affected versions in the BTS as needed.

Regards,
Salvatore

We believe that the bug you reported is fixed in the latest version of
libdbi-perl, which is due to be installed in the Debian FTP archive.

A summary of the changes between this version and the previous one is
attached.

Thank you for reporting the bug, which will now be closed.  If you
have further comments please address them to 1144470@bugs.debian.org,
and the maintainer will reopen the bug report if appropriate.

Debian distribution maintenance software
pp.
gregor herrmann <gregoa@debian.org> (supplier of updated libdbi-perl package)

(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing ftpmaster@ftp-master.debian.org)
Format: 1.8
Date: Sat, 15 Aug 2026 17:13:20 +0200
Source: libdbi-perl
Architecture: source
Version: 1.652-1
Distribution: unstable
Urgency: medium
Maintainer: Debian Perl Group <pkg-perl-maintainers@lists.alioth.debian.org>
Changed-By: gregor herrmann <gregoa@debian.org>
Closes: 1144470 1144471
Changes:
 libdbi-perl (1.652-1) unstable; urgency=medium
 .
   * Import upstream version 1.652.
     + Limit statements to 292 Mb in preparse (CVE-2026-73193)
       (Closes: #1144470)
     + Force placeholder limit on :# and :p# too (CVE-2026-73194)
       (Closes: #1144471)
   * Install new SECURITY.md file.
   * Refresh t__40profile.t__NTP.patch (offset).
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Git-Tag-Info: tag=f7c427d0b058284f51bf3866709ca4c443188e0c fp=d1e1316e93a760a8104d85fabb3a68018649aa06
Git-Tag-Tagger: gregor herrmann <gregoa@debian.org>
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We believe that the bug you reported is fixed in the latest version of
libdbi-perl, which is due to be installed in the Debian FTP archive.

A summary of the changes between this version and the previous one is
attached.

Thank you for reporting the bug, which will now be closed.  If you
have further comments please address them to 1144470@bugs.debian.org,
and the maintainer will reopen the bug report if appropriate.

Debian distribution maintenance software
pp.
Salvatore Bonaccorso <carnil@debian.org> (supplier of updated libdbi-perl package)

(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing ftpmaster@ftp-master.debian.org)
Format: 1.8
Date: Sat, 22 Aug 2026 22:43:46 +0200
Source: libdbi-perl
Architecture: source
Version: 1.652-2~deb13u1
Distribution: trixie-security
Urgency: high
Maintainer: Debian Perl Group <pkg-perl-maintainers@lists.alioth.debian.org>
Changed-By: Salvatore Bonaccorso <carnil@debian.org>
Closes: 1141667 1142072 1144470 1144471 1144851
Changes:
 libdbi-perl (1.652-2~deb13u1) trixie-security; urgency=high
 .
   * Team upload.
   * Rebuild for trixie-security
   * Revert "Remove «Priority: optional», which is the current default."
   * Revert "Remove «Rules-Requires-Root: no», which is the current default."
   * Revert "Declare compliance with Debian Policy 4.7.4."
   * Revert "Reformat debian/control."
 .
 libdbi-perl (1.652-2) unstable; urgency=medium
 .
   * Add patch from upstream Git to fix 32bit test failure.
     Thanks to Adrian Bunk for the bug report. (Closes: #1144851)
 .
 libdbi-perl (1.652-1) unstable; urgency=medium
 .
   * Import upstream version 1.652.
     + Limit statements to 292 Mb in preparse (CVE-2026-73193)
       (Closes: #1144470)
     + Force placeholder limit on :# and :p# too (CVE-2026-73194)
       (Closes: #1144471)
   * Install new SECURITY.md file.
   * Refresh t__40profile.t__NTP.patch (offset).
 .
 libdbi-perl (1.651-1) unstable; urgency=medium
 .
   * Import upstream version 1.651.
     - Fix inverted comparisons for strings in DBI::SQL::Nano
       (CVE-2026-15043)
     - Fix DBD::File to ensure that the table is not a symlink outside of f_dir
       (CVE-2026-15392)
     - Fix an out-of-bounds error when a statement handle has no fields but the
       source row is not empty (CVE-2026-60082)
     - Add an overridable upper bound $MAX_PATH_DEPTH for DBI::ProfileData
       (CVE-2026-60081)
     Closes: #1142072
 .
 libdbi-perl (1.650-1) unstable; urgency=medium
 .
   * Import upstream version 1.650.
     - Set a hard limit of 99999 on '?' placeholders
       (CVE-2026-14739)
     - Fix out-of-bounds read in preparse of SQL that starts with a comment
       (CVE-2026-14740)
     - Fix code injection via Profile DSN attribute or DBI_PROFILE variable
       (CVE-2026-14380)
     Closes: #1141667
   * Install new upstream document.
 .
 libdbi-perl (1.649-1) unstable; urgency=medium
 .
   * Import upstream version 1.649.
 .
 libdbi-perl (1.648-1) unstable; urgency=medium
 .
   * Import upstream version 1.648.
     Fixes CVE-2026-9698 and CVE-2026-10879.
   * Update years of upstream and packaging copyright.
   * Declare compliance with Debian Policy 4.7.4.
   * Remove «Rules-Requires-Root: no», which is the current default.
   * Remove «Priority: optional», which is the current default.
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