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HIGH

nasm: out-of-bounds array access in is_mmacro in asm/preproc.c

Published Nov 30, 2018

Description

There is an illegal address access at asm/preproc.c (function: is_mmacro) in Netwide Assembler (NASM) 2.14rc16 that will cause a denial of service (out-of-bounds array access) because a certain conversion can result in a negative integer.

Affected products

Remediation

Red Hat statement

This issue affects the versions of nasm as shipped with Red Hat Enterprise Linux 5, 6, and 7. Red Hat Enterprise Linux 5 is now in Extended Life Phase of the support and maintenance life cycle. This issue is not currently planned to be addressed in future updates. For additional information, refer to the Red Hat Enterprise Linux Life Cycle: https://access.redhat.com/support/policy/updates/errata/. Red Hat Enterprise Linux 6 is now in Maintenance Support 2 Phase of the support and maintenance life cycle. This has been rated as having a security impact of Low, and is not currently planned to be addressed in future updates. For additional information, refer to the Red Hat Enterprise Linux Life Cycle: https://access.redhat.com/support/policy/updates/errata/.

Metrics

Weaknesses (2)

CWE-125

Out-of-bounds Read

CWE-20

Improper Input Validation

References (6)

Change history (0)

No recorded changes yet.

Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Nov 30, 2018
Updated Sep 16, 2024
Reserved Nov 29, 2018
Link CVE-2018-19755
CISA Vulnrichment
Updated n/a
NVD
Status Modified
Modified Jun 17, 2026
Link CVE-2018-19755
Red Hat
Severity Low
Public date Nov 12, 2018
Links CVE-2018-19755 - Bugzilla