Alpine: multiple bison packages: security update to 3.7.2-r0

medium Tenable Cloud Security Plugin ID 423717

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

- GNU Bison before 3.7.1 has a use-after-free in _obstack_free in lib/obstack.c (called from gram_lex) when
a '\0' byte is encountered. NOTE: there is a risk only if Bison is used with untrusted input, and the
observed bug happens to cause unsafe behavior with a specific compiler/architecture. The bug report was
intended to show that a crash may occur in Bison itself, not that a crash may occur in code that is
generated by Bison. (CVE-2020-24240)

Plugin Details

Severity: Medium

ID: 423717

Version: Revision 1.9

Type: Local

Family: Alpine Linux Local Security Checks

Published: 4/4/2025

Updated: 11/4/2025

Supported Sensors: Agentless Assessment

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.18

CVSS v2

Risk Factor: High

Base Score: 7.1

Temporal Score: 5.3

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

CVSS Score Source: CVE-2020-24240

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 4.8

Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/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: 8/25/2020

Reference Information

CVE: CVE-2020-24240

Detections

Analytics