Vulnerability in Linux Kernel
CVSS score
7.4
EPSS probability
%6.9
Risk score
0.5
Published
4 y ago
Etkilenen ürün ve sürüm için yayımlanan güvenlik güncellemesini uygulayın.
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Vulnerability description
DayBreach CVE AI Research
CVE-2021-20322 has vendor, distribution, patch and security-source records on file. We can compare them and prepare an explanation linked to the evidence.
A flaw in the processing of received ICMP errors (ICMP fragment needed and ICMP redirect) in the Linux kernel functionality was found to allow the ability to quickly scan open UDP ports. This flaw allows an off-path remote user to effectively bypass the source port UDP randomization. The highest threat from this vulnerability is to confidentiality and possibly integrity, because software that relies on UDP source port randomization are indirectly affected as well.
IMPACT: Affected Products and Software
Affected Products
The following products are affected by CVE-2021-20322 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.
| ID | VENDOR | PRODUCT | ACTION |
|---|---|---|---|
| 1 | linux | linux kernel | View |
| 2 | linux | linux kernel | View |
| 3 | linux | linux kernel | View |
| 4 | linux | linux kernel | View |
| 5 | fedoraproject | fedora | View |
| 6 | debian | debian linux | View |
| 7 | debian | debian linux | View |
| 8 | netapp | active iq unified manager | View |
| 9 | netapp | e-series santricity os controller | View |
| 10 | netapp | solidfire, enterprise sds & hci storage node | View |
| 11 | netapp | solidfire & hci management node | View |
| 12 | netapp | fas baseboard management controller firmware | View |
| 13 | netapp | fas baseboard management controller | View |
| 14 | netapp | fas baseboard management controller | View |
| 15 | netapp | aff baseboard management controller firmware | View |
| 16 | netapp | aff baseboard management controller | View |
| 17 | netapp | aff a700s firmware | View |
| 18 | netapp | aff a700s | View |
| 19 | netapp | h700s firmware | View |
| 20 | netapp | h700s | View |
| 21 | netapp | h700e firmware | View |
| 22 | netapp | h700e | View |
| 23 | netapp | h500s firmware | View |
| 24 | netapp | h500s | View |
| 25 | netapp | h410s firmware | View |
| 26 | netapp | h410s | View |
| 27 | netapp | h500e firmware | View |
| 28 | netapp | h500e | View |
| 29 | netapp | h300e firmware | View |
| 30 | netapp | h300e | View |
| 31 | netapp | h300s firmware | View |
| 32 | netapp | h300s | View |
| 33 | netapp | hci compute node firmware | View |
| 34 | netapp | hci compute node | View |
| 35 | oracle | communications cloud native core binding support function | View |
| 36 | oracle | communications cloud native core network exposure function | View |
| 37 | oracle | communications cloud native core policy | View |
RED HAT CSAF/VEX: Product Impact Check
SCORING: CVSS from Multiple Sources
CVSS Scores
The Common Vulnerability Scoring System is a standardised framework for assessing the severity of vulnerabilities in software and systems. We collect and display CVSS scores from several sources for each CVE.
| SCORE | VERSION | SEVERITY | VECTOR | SOURCE |
|---|---|---|---|---|
| 7.4 | CVSS V31 | HIGH | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N | NVD |
| 5.8 | CVSS V2 | — | AV:N/AC:M/Au:N/C:P/I:P/A:N | NVD |
Patch and Remediation Guide
Solution & Remediation Advisory
8 doğrulanmış yama veya düzeltilmiş sürüm kanıtı bulundu.
Public exploit and active exploitation status
Verified exploit intelligence
No verified public PoC, exploit repository or Metasploit module has been found for this CVE yet.
Weakness Classification and Attack Patterns (CWE & CAPEC)
CWE - Common Weakness Enumeration
While CVE identifies specific instances of vulnerabilities, CWE categorises the common flaws or weaknesses that can lead to vulnerabilities. CVE-2021-20322 is associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2021-20322 weaknesses.
Attack Vector and Accessibility
Official Sources and Advisories
Similar Vulnerabilities
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