CVE-2021-20285: A flaw was found in upx canPack in p_lx_elf.cpp in UPX 3.96. This flaw allows attackers to cause a denial of service (SEGV or buffer overflow and application…

PriorityP421medium6.6CVSS 3.1

AVLACLPRNUIRSUCLILAH

EPSS

0.75%

50.3th percentile

A flaw was found in upx canPack in p_lx_elf.cpp in UPX 3.96. This flaw allows attackers to cause a denial of service (SEGV or buffer overflow and application crash) or possibly have unspecified other impacts via a crafted ELF. The highest threat from this vulnerability is to system availability.

Affected

3 ranges

Vendor	Product	Version range	Fixed in
debian	upx-ucl	< upx-ucl 4.2.2-1 (forky)	upx-ucl 4.2.2-1 (forky)
upx	upx	—	—
upx	upx	—	—

CVSS provenance

nvdv3.16.6MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H

nvdv2.08.3HIGHAV:N/AC:M/Au:N/C:P/I:P/A:C

osv6.6MEDIUM

vendor_debian6.6LOW

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