Alpine: multiple gnutls packages: security update to 3.8.11-r0

high Tenable Self-Hosted Container Security Plugin ID 437943

Description

There are packages installed that are affected by multiple vulnerabilities referenced in the following CVEs:

- A heap-buffer-overflow (off-by-one) flaw was found in the GnuTLS software in the template parsing logic
within the certtool utility. When it reads certain settings from a template file, it allows an attacker to
cause an out-of-bounds (OOB) NULL pointer write, resulting in memory corruption and a denial-of-service
(DoS) that could potentially crash the system. (CVE-2025-32990)

- A flaw was found in GnuTLS, which relies on libtasn1 for ASN.1 data processing. Due to an inefficient
algorithm in libtasn1, decoding certain DER-encoded certificate data can take excessive time, leading to
increased resource consumption. This flaw allows a remote attacker to send a specially crafted
certificate, causing GnuTLS to become unresponsive or slow, resulting in a denial-of-service condition.
(CVE-2024-12243)

- A NULL pointer dereference flaw was found in the GnuTLS software in _gnutls_figure_common_ciphersuite().
(CVE-2025-6395)

- A flaw was found in the GnuTLS library, specifically in the gnutls_pkcs11_token_init() function that
handles PKCS#11 token initialization. When a token label longer than expected is processed, the function
writes past the end of a fixed-size stack buffer. This programming error can cause the application using
GnuTLS to crash or, in certain conditions, be exploited for code execution. As a result, systems or
applications relying on GnuTLS may be vulnerable to a denial of service or local privilege escalation
attacks. (CVE-2025-9820)

- A flaw was found in GnuTLS. A double-free vulnerability exists in GnuTLS due to incorrect ownership
handling in the export logic of Subject Alternative Name (SAN) entries containing an otherName. If the
type-id OID is invalid or malformed, GnuTLS will call asn1_delete_structure() on an ASN.1 node it does not
own, leading to a double-free condition when the parent function or caller later attempts to free the same
structure. This vulnerability can be triggered using only public GnuTLS APIs and may result in denial of
service or memory corruption, depending on allocator behavior. (CVE-2025-32988)

Plugin Details

Severity: High

ID: 437943

Version: Revision 1.2

Type: Local

Family: Alpine Linux Local Security Checks

Published: 2/24/2026

Updated: 3/4/2026

Supported Sensors: Agentless Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Medium

Score: 5.5

Percentile: 96.46

CVSS v2

Risk Factor: High

Base Score: 8.5

Temporal Score: 6.3

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:C

CVSS Score Source: CVE-2025-32990

CVSS v3

Risk Factor: High

Base Score: 8.2

Temporal Score: 7.1

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 2/10/2025

Reference Information

CVE: CVE-2024-12243, CVE-2025-32988, CVE-2025-32989, CVE-2025-32990, CVE-2025-6395, CVE-2025-9820

IAVA: 2025-A-0879-S

Detections

Analytics