Medium severity · published Aug 22, 2023
CVE-2020-21687
Buffer Overflow vulnerability in scan function in stdscan.c in nasm 2.15rc0 allows remote attackers to cause a denial of service via crafted asm file
5.5
CVSS
0.4%
EPSS
No
On KEV
Description
Buffer Overflow vulnerability in scan function in stdscan.c in nasm 2.15rc0 allows remote attackers to cause a denial of service via crafted asm file.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 38% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
NA
Netwide Assembler · Nasm
2.15 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-21687
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-21687
Exploit
https://bugzilla.nasm.us/show_bug.cgi?id=3392645
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