Vulnerability in N/a
CVSS score
7.5
EPSS probability
%3.3
Risk score
0.2
Published
5 y ago
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Vulnerability description
DayBreach CVE AI Research
CVE-2021-43396 has vendor, distribution, patch and security-source records on file. We can compare them and prepare an explanation linked to the evidence.
In iconvdata/iso-2022-jp-3.c in the GNU C Library (aka glibc) 2.34, remote attackers can force iconv() to emit a spurious '\0' character via crafted ISO-2022-JP-3 data that is accompanied by an internal state reset. This may affect data integrity in certain iconv() use cases. NOTE: the vendor states "the bug cannot be invoked through user input and requires iconv to be invoked with a NULL inbuf, which ought to require a separate application bug to do so unintentionally. Hence there's no security impact to the bug.
IMPACT: Affected Products and Software
Affected Products
The following products are affected by CVE-2021-43396 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.
| ID | VENDOR | PRODUCT | ACTION |
|---|---|---|---|
| 1 | n/a | n/a | View |
| 2 | gnu | glibc | View |
| 3 | oracle | communications cloud native core binding support function | View |
| 4 | oracle | communications cloud native core network function cloud native environment | View |
| 5 | oracle | communications cloud native core network repository function | View |
| 6 | oracle | communications cloud native core network repository function | View |
| 7 | oracle | communications cloud native core security edge protection proxy | View |
| 8 | oracle | communications cloud native core unified data repository | View |
| 9 | oracle | enterprise operations monitor | View |
| 10 | oracle | enterprise operations monitor | View |
| 11 | oracle | enterprise operations monitor | 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 |
|---|---|---|---|---|
| 7.5 | CVSS V31 | HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N | NVD |
| 5.0 | CVSS V2 | — | AV:N/AC:L/Au:N/C:N/I:P/A:N | NVD |
Patch and Remediation Guide
Solution & Remediation Advisory
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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-2021-43396 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-2021-43396 weaknesses.
Attack Vector and Accessibility
Official Sources and Advisories
Similar Vulnerabilities
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