CVE-2024-27508

Disputed service interruption via benchmark memory leak

Published Feb 27, 2024 · Updated Aug 29, 2024

A disputed memory leak in Atheme IRC Services 7.2.12 allows attackers to exhaust memory through the crypto-benchmark utility. The utility duplicates an option string, then returns from its argument loop without freeing that allocation when a help or error branch is taken. Upstream and Debian state that the command-line utility exits immediately, so the allocation is reclaimed and the daemon is not remotely exposed; no service interruption is established.

CVSS severity7.5
High
EPSS probability0.74%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

A disputed memory leak in Atheme IRC Services 7.2.12 allows attackers to exhaust memory through the crypto-benchmark utility. The utility duplicates an option string, then returns from its argument loop without freeing that allocation when a help or error branch is taken. Upstream and Debian state that the command-line utility exits immediately, so the allocation is reclaimed and the daemon is not remotely exposed; no service interruption is established.

The record

CVE
CVE-2024-27508
Published
Feb 27, 2024
Updated
Aug 29, 2024
Vendor
Atheme Development Group
Product
Atheme IRC Services
Classifications
CWE-401
Attack vector
Unavailable
Privileges
Unavailable

Timeline

How it unfolded

  1. Feb 27, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 29, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=7.2.12

What conditions does exploitation require?

Attack vectorUnavailable in this record.
Required privilegesUnavailable in this record.

What is affected?

Atheme Development Group · Atheme IRC Servicesversion=7.2.12

Published CVSS scores

7.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
VectorUnavailable
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-401Missing Release of Memory after Effective Lifetime

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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