CVE-2021-45423

Name	CVE-2021-45423
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.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
Debian Bugs	1034725

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
pev (PTS)	bullseye	0.81-3+deb11u1	fixed
	bookworm	0.81-9	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Debian Bugs
pev	source	buster	(not affected)
pev	source	bullseye	0.81-3+deb11u1
pev	source	(unstable)	0.81-9	1034725

Notes

[buster] - pev <not-affected> (Vulnerable code introduced later)
https://github.com/merces/libpe/issues/35
https://github.com/merces/libpe/commit/9b5fedc37ccbcd23695a0e97c0fe46c999e26100
https://github.com/merces/libpe/commit/8960f7d710c4d1a43badd2bbf273721248b864f8