Vulnerability Details : CVE-2019-20334
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.
Products affected by CVE-2019-20334
- cpe:2.3:a:nasm:netwide_assembler:2.14.02:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2019-20334
0.07%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 30 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2019-20334
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.3
|
MEDIUM | AV:N/AC:M/Au:N/C:N/I:N/A:P |
8.6
|
2.9
|
NIST | |
|
5.5
|
MEDIUM | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |
1.8
|
3.6
|
NIST |
CWE ids for CVE-2019-20334
-
The product does not properly control the amount of recursion that takes place, consuming excessive resources, such as allocated memory or the program stack.Assigned by: nvd@nist.gov (Primary)
References for CVE-2019-20334
-
https://bugzilla.nasm.us/show_bug.cgi?id=3392548#c4
3392548 – Stack exhaustion problem resulting from infinite recursion in the functions expr6, expr5, expr4, expr3, expr2, expr1, expr0 in eval.cExploit;Issue Tracking;Vendor Advisory
-
https://bugzilla.nasm.us/show_bug.cgi?id=3392638
3392638 – An StackOverflow was discovered in the function expr3 in asm/eval.c in nasm-2.14.02Exploit;Issue Tracking;Vendor Advisory
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