CVE-2021-45423

A Buffer Overflow vulnerabilityexists in Pev 0.81 via the pe_exports f ...

Published 13 Mar 2023Modified 17 Jun 2026CWE 120

In the Trivy database since at least 24 Oct 2026, 07:11 UTCWhen it arrived before that build is not recorded.

Severity by source

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Trivy's own label is CRITICAL. Rated critical by NVD.

Description

A Buffer Overflow vulnerabilityexists in Pev 0.81 via the pe_exports function from exports.c.. The array offsets_to_Names is dynamically allocated on the stack using exp->NumberOfFunctions as its size. However, the loop uses exp->NumberOfNames to iterate over it and set its components value. Therefore, the loop code assumes that exp->NumberOfFunctions is greater than ordinal at each iteration. This can lead to arbitrary code execution.

Affected packages and fixed versions

Source	Package	Fixed in
alpine 3.18	pev	0.82-r0
alpine 3.19	pev	0.82-r0
alpine 3.20	pev	0.82-r0
alpine 3.21	pev	0.82-r0
alpine 3.22	pev	0.82-r0
alpine 3.23	pev	0.82-r0
alpine 3.24	pev	0.82-r0
alpine edge	pev	0.82-r0
debian 11	pev	0.81-3+deb11u1
debian 12	pev	0.81-9
echo	pev	0.81-9

References

https://github.com/merces/libpe/issues/35

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Vulnerability data compiled from the Trivy vulnerability database (trivy-db, Aqua Security, Apache License 2.0), which aggregates third-party advisories. CVE records are published by The MITRE Corporation under the CVE Terms of Use; CVE is a trademark of MITRE. This product uses data from the NVD API but is not endorsed or certified by the NVD. Severity, titles and advisory data from the GitHub Advisory Database (CC BY 4.0), Red Hat security data (CC BY 4.0) and the other sources linked on each entry. Entries may be summarised or re-formatted; the linked original is the authoritative record.