Summary
Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2026-57433: 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.
Fixed packages 2
| Release | Package | Fixed in |
|---|---|---|
| Amazon Linux · 2 | perl-Storable | 0:2.45-3.amzn2.0.4 |
| Amazon Linux · 2 | perl-Storable-debuginfo | 0:2.45-3.amzn2.0.4 |
Vulnerabilities 1
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Critical 9.8
Storable versions before 3.41 for Perl have a signed integer overflow when deserializing a crafted SX_HOOK record
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 wr…
References
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web
https://alas.aws.amazon.com/cve/html/CVE-2026-57433.html