Vulnerability Details : CVE-2020-5591
XACK DNS 1.11.0 to 1.11.4, 1.10.0 to 1.10.8, 1.8.0 to 1.8.23, 1.7.0 to 1.7.18, and versions before 1.7.0 allow remote attackers to cause a denial of service condition resulting in degradation of the recursive resolver's performance or compromising the recursive resolver as a reflector in a reflection attack.
Vulnerability category: Denial of service
Products affected by CVE-2020-5591
- cpe:2.3:a:xack:xack_dns:*:*:*:*:*:*:*:*
- cpe:2.3:a:xack:xack_dns:*:*:*:*:*:*:*:*
- cpe:2.3:a:xack:xack_dns:*:*:*:*:*:*:*:*
- cpe:2.3:a:xack:xack_dns:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-5591
0.20%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 57 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-5591
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:N/A:P |
10.0
|
2.9
|
NIST | |
|
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
NIST |
CWE ids for CVE-2020-5591
-
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-2020-5591
-
https://xack.co.jp/info/?ID=622
XACKVendor Advisory
-
https://jvn.jp/en/jp/JVN40208370/index.html
JVN#40208370: XACK DNS vulnerable to denial-of-service (DoS)Mitigation;Third Party Advisory;VDB Entry
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