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Vulnerability · Published Mar 30, 2021 · Assigned by mitre

CVE-2021-29376

High 7.5

In plain English

A high-severity security flaw in the ircii package (Alpine). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.3% (higher than 83% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)7.5High
Exploit odds (30 days)2.3%top 16.9% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

ircII before 20210314 allows remote attackers to cause a denial of service (segmentation fault and client crash, disconnecting the victim from an IRC server) via a crafted CTCP UTC message.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Alpine:v3.20ircii20210314-r0ALPINE-CVE-2021-29376
Alpine:v3.21ircii20210314-r0ALPINE-CVE-2021-29376
Alpine:v3.22ircii20210314-r0ALPINE-CVE-2021-29376
Alpine:v3.23ircii20210314-r0ALPINE-CVE-2021-29376
Alpine:v3.24ircii20210314-r0ALPINE-CVE-2021-29376
Debian:12ircii20210314-1DEBIAN-CVE-2021-29376
Debian:13ircii20210314-1DEBIAN-CVE-2021-29376
Debian:14ircii20210314-1DEBIAN-CVE-2021-29376
Debian:12scrollz2.2.3-2DEBIAN-CVE-2021-29376
Ubuntu:22.04:LTSirciino fix listedUBUNTU-CVE-2021-29376
Ubuntu:24.04:LTSirciino fix listedUBUNTU-CVE-2021-29376
Ubuntu:25.10irciino fix listedUBUNTU-CVE-2021-29376
Ubuntu:26.04:LTSirciino fix listedUBUNTU-CVE-2021-29376
Ubuntu:26.10irciino fix listedUBUNTU-CVE-2021-29376

Affected products (as reported)

VendorProductVersions
n/a n/a n/a

References