CVE-2018-11243

high

Description

PackLinuxElf64::unpack in p_lx_elf.cpp in UPX 3.95 allows remote attackers to cause a denial of service (double free), limit the ability of a malware scanner to operate on the entire original data, or possibly have unspecified other impact via a crafted file.

References

Advisories
More

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EUTVSTXAFTD552NO2K2RIF6MDQEHP3BE/

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/D7XU42G6MUQQXHWRP7DCF2JSIBOJ5GOO/

http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00008.html

http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00007.html

http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00003.html

http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00001.html

https://github.com/upx/upx/issues/207

https://github.com/upx/upx/issues/206

https://github.com/upx/upx/blob/devel/NEWS

https://euvd.enisa.europa.eu/vulnerability/EUVD-2018-3283

Details

Source: Mitre, NVD

Published: 2018-05-18

Updated: 2026-06-17

Risk Information

CVSS v2

Base Score: 6.8

Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P

Severity: Medium

CVSS v3

Base Score: 7.8

Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Severity: High

EPSS

EPSS: 0.02424