Detections
Analytics
EulerOS 2.0 SP11 : libkcapi (EulerOS-SA-2026-4338)
high Nessus Plugin ID 365012
Synopsis
The remote EulerOS host is missing multiple security updates.Description
According to the versions of the libkcapi packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :A flaw was found in libkcapi. When performing one-shot symmetric cipher operations on large inputs (over 64 KiB) in stateful modes such as Counter (CTR) or Cipher Block Chaining (CBC), the library improperly reuses the Initialization Vector (IV) for each internal data chunk. A remote attacker could potentially exploit this by making an application that uses libkcapi process specially crafted large inputs. This can lead to a significant weakening of data confidentiality, as the repeated IV use can expose relationships in encrypted plaintext, and may also affect data integrity by causing incorrect cryptographic processing.(CVE-2026-71225)
A flaw was found in libkcapi. A local attacker can influence an application that uses the Asynchronous Input/Output (AIO) interface. By reusing an AIO-enabled handle after a prior completion error, the
_kcapi_aio_read_all() function can enter a non-terminating wait loop. This can lead to a persistent denial of service, making the affected application or thread unresponsive.(CVE-2026-71227)
Memory Corruption via Uncanceled AIO Requests on Error: libkcapi's one-shot AIO path can return an error before all submitted IOCBs are drained, allowing later kernel writes into caller-owned output buffers.(CVE-2026-71226)
Tenable has extracted the preceding description block directly from the EulerOS libkcapi security advisory.
Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.
Solution
Update the affected libkcapi packages.See Also
Plugin Details
Severity: High
ID: 365012
File Name: EulerOS_SA-2026-4338.nasl
Version: 1.1
Type: Local
Family: Huawei Local Security Checks
Published: 10/12/2026
Updated: 10/12/2026
Supported Sensors: Nessus
Risk Information
VPR
Risk Factor: Low
Score: 3.9
Percentile: 52.57
CVSS v2
Risk Factor: Medium
Base Score: 6.1
Temporal Score: 4.8
Vector: CVSS2#AV:L/AC:L/Au:N/C:P/I:P/A:C
CVSS Score Source: CVE-2026-71226
CVSS v3
Risk Factor: High
Base Score: 7.3
Temporal Score: 6.6
Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C
Vulnerability Information
CPE: cpe:/o:huawei:euleros:2.0, p-cpe:/a:huawei:euleros:libkcapi-help, p-cpe:/a:huawei:euleros:libkcapi
Required KB Items: Host/local_checks_enabled, Host/cpu, Host/EulerOS/release, Host/EulerOS/rpm-list, Host/EulerOS/sp
Excluded KB Items: Host/EulerOS/uvp_version
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 10/10/2026
Vulnerability Publication Date: 8/5/2026