CVE-2026-57433
Publication date 13 July 2026
Last updated 25 August 2026
Ubuntu priority
Description
Storable versions before 3.41 for Perl have a signed integer overflow when deserializing a crafted SX_HOOK record. retrieve_hook_common reads a signed 32-bit item count from an SX_HOOK record and calls av_extend with that count plus one. A count of I32_MAX wraps the addition to a negative value. A crafted blob passed to thaw or retrieve triggers the overflow; av_extend receives the negative count and dies with a panic, terminating the deserialization.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| perl | 26.04 LTS resolute |
Needs evaluation
|
| 24.04 LTS noble |
Needs evaluation
|
|
| 22.04 LTS jammy |
Fixed 5.34.0-3ubuntu1.8
|
|
| 20.04 LTS focal |
Fixed 5.30.0-9ubuntu0.5+esm3
|
|
| 18.04 LTS bionic |
Fixed 5.26.1-6ubuntu0.7+esm3
|
|
| 16.04 LTS xenial |
Fixed 5.22.1-9ubuntu0.9+esm3
|
|
| 14.04 LTS trusty |
Fixed 5.18.2-2ubuntu1.7+esm8
|
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CVSS version: CVSS v3.0
Base score
9.8 · Critical
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
References
Related Ubuntu Security Notices (USN)
- USN-8675-1
- Perl vulnerabilities
- 25 August 2026