Vulnerability Intelligence Report
CVE-2021-43396
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.
No Active Exploit Signals
CVSS Base Score
7.5
HIGH
EPSS Probability:2.94%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
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Authentication
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Weaponization
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SSVC Action
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Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| gnu | glibc | 2.34 |
| oracle | communications_cloud_native_core_binding_support_function | 22.1.3 |
| oracle | communications_cloud_native_core_network_function_cloud_native_environment | 22.1.0 |
| oracle | communications_cloud_native_core_network_repository_function | 22.1.2, 22.2.0 |
| oracle | communications_cloud_native_core_security_edge_protection_proxy | 22.1.1 |
| oracle | communications_cloud_native_core_unified_data_repository | 22.2.0 |
| oracle | enterprise_operations_monitor | 4.3, 4.4, 5.0 |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
EPSS Score
2.943%
GitHub Advisory
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | MITRE Corporation · N/A · USA |
| Reserved | 2021-11-04T00:00:00 |
| Published | 2021-11-04T19:52:49 |
| Last Updated | 2024-08-04T03:55:28 |
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