CVE-2020-27788

low-risk

Published 2022-08-18

An out-of-bounds read access vulnerability was discovered in UPX in PackLinuxElf64::canPack() 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.

Do I need to act?

0.05% chance of exploitation

EPSS score — low exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 5.5/10 Medium

LOCAL / LOW complexity

Affected Products (1)

Upx

Affected Vendors

Upx

References (4)

Patch https://github.com/upx/upx/commit/1bb93d4fce9f1d764ba57bf5ac154af515b3fc83

Exploit https://github.com/upx/upx/issues/332

Patch https://github.com/upx/upx/commit/1bb93d4fce9f1d764ba57bf5ac154af515b3fc83

Exploit https://github.com/upx/upx/issues/332

/ 100

low-risk

Severity 18/34 · Moderate

Exploitability 0/34 · Minimal

Exposure 5/34 · Minimal