CVE-2020-27797
MEDIUMCVSS 5.5/10EPSS 0.27%
Last modified
CVE-2020-27797 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. An invalid memory address reference was discovered in the elf_lookup function in p_lx_elf.cpp in UPX 4.0.0 via a crafted Mach-O file.. EPSS estimates a 0.27% chance of exploitation in the next 30 days.
Description
An invalid memory address reference was discovered in the elf_lookup function in p_lx_elf.cpp in UPX 4.0.0 via a crafted Mach-O file.
Metrics
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Upx | Upx | 4.0.0 |
References
- https://github.com/upx/upx/issues/390Exploit, Issue Tracking, Third Party Advisory
- https://github.com/upx/upx/issues/390Exploit, Issue Tracking, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2020-27797?
An invalid memory address reference was discovered in the elf_lookup function in p_lx_elf.cpp in UPX 4.0.0 via a crafted Mach-O file.
How severe is CVE-2020-27797?
CVE-2020-27797 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.27% probability of exploitation in the next 30 days.
How do I fix CVE-2020-27797?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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Are you affected by CVE-2020-27797?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST