Detections
Analytics
Alpine: multiple libkcapi packages: security update to 1.5.1-r0
high Tenable Cloud Security Plugin ID 446263
Description
There are packages installed that are affected by multiple vulnerabilities referenced in the following CVEs:- 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)
- 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)
- 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)
Solution
Update the libkcapi library and its related packages to version 1.5.1-r0 or later.See Also
https://security.alpinelinux.org/vuln/CVE-2026-71225
Plugin Details
Severity: High
ID: 446263
Version: Revision 1.1
Type: Local
Published: 8/25/2026
Updated: 8/25/2026
Supported Sensors: Agentless Assessment
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
Exploit Available: true
Exploit Ease: Exploits are available
Vulnerability Publication Date: 8/5/2026