What is CVE-2020-27790?

CVE-2020-27790 is a medium-severity vulnerability in Upx, classified under Divide By Zero. CVSS score: 5.5/10. Published 2022-08-18.

How severe is CVE-2020-27790?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Is CVE-2020-27790 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Upx

CVE-2020-27790

A floating point exception issue was discovered in UPX in PackLinuxElf64::invert_pt_dynamic() function of p_lx_elf.cpp file. An attacker with a crafted input file could trigger this issue that could cause a crash leading to a denial of service. The highest impact is to Availability.

EPSS: 0.003 (24.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

Affected products

Upx
N/a Upx — versions Fixed in v3.96.

Weakness classification (CWE)

CWE-369 — Divide By Zero

Public proof-of-concept exploits

Live-Hack-CVE/CVE-2020-27790

References

secalert@redhat.com (Exploit, Patch, Third Party Advisory, x_refsource_MISC, Issue Tracking)
secalert@redhat.com (Patch, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2020-27790?: CVE-2020-27790 is a medium-severity vulnerability in Upx, classified under Divide By Zero. CVSS score: 5.5/10. Published 2022-08-18.
How severe is CVE-2020-27790?: Medium severity. CVSS v3 base score is 5.5 out of 10.
Is CVE-2020-27790 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.