SB2020010404 - Resource exhaustion in Netwide Assembler
Published: January 4, 2020 Updated: August 8, 2020
Security Bulletin ID
SB2020010404
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Resource exhaustion (CVE-ID: CVE-2019-20334)
The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.
In Netwide Assembler (NASM) 2.14.02, stack consumption occurs in expr# functions in asm/eval.c. This potentially affects the relationships among expr0, expr1, expr2, expr3, expr4, expr5, and expr6 (and stdscan in asm/stdscan.c). This is similar to CVE-2019-6290 and CVE-2019-6291.
Remediation
Install update from vendor's website.