DEBIAN-CVE-2026-73194
- Source
- https://security-tracker.debian.org/tracker/CVE-2026-73194
- Import Source
- https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-73194.json
- JSON Data
- https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-73194
- Upstream
- Published
- 2026-08-15T13:17:48Z
- Modified
- 2026-09-14T17:03:52Z
- Severity
-
- 9.1 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H CVSS Calculator
- Summary
- [none]
- Details
-
DBI versions before 1.652 for Perl allow a heap out-of-bounds write via an unvalidated numeric placeholder that sets the binder counter in preparse. preparse reserves seven output bytes per input byte, the width of the longest ':p99999' expansion. The ':N' branch parses the number with
atoi(src)and assigns it to the binder counter with no range check, so a statement containing ':2147483648' leaves the counter negative (-2147483648 with glibc, where atoi wraps). Each following '?' then expands throughsprintf(start, ":p%d", idx++)to ':p-2147483648', 14 bytes with the terminating NUL where the buffer budgets 7. The placeholder limit added in 1.650 tests the counter against 99,999, which a negative counter passes. Any caller that preparses an untrusted statement into ':pN' style placeholders gets a heap out-of-bounds write that grows with the number of '?' marks following the poisoned placeholder. The '?' and '%s' return styles compare the parsed number against the expected sequence and error out, and are unaffected. - References
Affected packages
Debian:12 / libdbi-perl
Package
- Name
- libdbi-perl
- Purl
- pkg:deb/debian/libdbi-perl?arch=source&distro=bookworm
Debian:13 / libdbi-perl
Package
- Name
- libdbi-perl
- Purl
- pkg:deb/debian/libdbi-perl?arch=source&distro=trixie
Debian:14 / libdbi-perl
Package
- Name
- libdbi-perl
- Purl
- pkg:deb/debian/libdbi-perl?arch=source&distro=forky