Loop with Unreachable Exit Condition ('Infinite Loop') Affecting iscsi-initiator-utils-debugsource package, versions <0:6.2.1.4-10.git2a8f9d8.amzn2023.0.4


Severity

Recommended
high

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.21% (11th percentile)

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  • Snyk IDSNYK-AMZN2023-ISCSIINITIATORUTILSDEBUGSOURCE-19476653
  • published1 Sept 2026
  • disclosed12 Aug 2026

Introduced: 12 Aug 2026

NewCVE-2026-18726  (opens in a new tab)
CWE-835  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2023 iscsi-initiator-utils-debugsource to version 0:6.2.1.4-10.git2a8f9d8.amzn2023.0.4 or higher.
This issue was patched in ALAS2023-2026-2120.

NVD Description

Note: Versions mentioned in the description apply only to the upstream iscsi-initiator-utils-debugsource package and not the iscsi-initiator-utils-debugsource package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2023 relevant fixed versions and status.

A flaw was found in open-iscsi. This vulnerability allows a remote attacker on the same local network segment to cause a Denial of Service (DoS) in the iscsiuio daemon. By sending a specially crafted Internet Control Message Protocol version 6 (ICMPv6) Router Advertisement with a zero-length option, the attacker can trigger an infinite loop. This leads to sustained CPU usage, rendering the daemon unresponsive and impacting system availability. A secondary risk of out-of-bounds reads exists with a short IPv6 payload, though no memory corruption or data exposure has been confirmed.

CVSS Base Scores

version 3.1