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Echo: libdbi-perl: security update to 1.647-1+deb13u1+e4

critical Tenable Self-Hosted Container Security Plugin ID 465194

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - 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.
 (CVE-2026-73193)

Solution

Update the libdbi-perl library and its related packages to version 1.647-1+deb13u1+e4 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-73193

Plugin Details

Severity: Critical

ID: 465194

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 58.2

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2026-73193

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 8/16/2026

Vulnerability Publication Date: 8/15/2026

Reference Information

CVE: CVE-2026-73193