CVE-2020-21686
MEDIUMCVSS 5.5/10EPSS 0.38%
Last modified
CVE-2020-21686 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. A stack-use-after-scope issue discovered in expand_mmac_params function in preproc.c in nasm before 2.15.04 allows remote attackers to cause a denial of service via crafted asm file.. EPSS estimates a 0.38% chance of exploitation in the next 30 days.
Description
A stack-use-after-scope issue discovered in expand_mmac_params function in preproc.c in nasm before 2.15.04 allows remote attackers to cause a denial of service via crafted asm 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 |
|---|---|---|
| Nasm | Netwide Assembler | < 2.15.04 |
References
- https://bugzilla.nasm.us/show_bug.cgi?id=3392643Exploit, Issue Tracking, Vendor Advisory
- https://bugzilla.nasm.us/show_bug.cgi?id=3392643Exploit, Issue Tracking, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2020-21686?
A stack-use-after-scope issue discovered in expand_mmac_params function in preproc.c in nasm before 2.15.04 allows remote attackers to cause a denial of service via crafted asm file.
How severe is CVE-2020-21686?
CVE-2020-21686 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.38% probability of exploitation in the next 30 days.
How do I fix CVE-2020-21686?
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.
Are you affected by CVE-2020-21686?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST