The (1) Conn_StartLogin and (2) cb_Read_Resolver_Result functions in conn.c in ngIRCd 18…
Priority LOW 25CWE-20Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Medium
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · Partial
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
The (1) Conn_StartLogin and (2) cb_Read_Resolver_Result functions in conn.c in ngIRCd 18 through 20.2, when the configuration option NoticeAuth is enabled, does not properly handle the return code for the Handle_Write function, which allows remote attackers to cause a denial of service (assertion failure and server crash) via unspecified vectors, related to a "notice auth" message not being sent to a new client.
Why it matters now
EPSS 0.02322 83rd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 6
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:barton:ngircd:18.0:*:*:*:*:*:*:* | 18.0 | Vulnerable | Barton |
| cpe:2.3:a:barton:ngircd:19.0:*:*:*:*:*:*:* | 19.0 | Vulnerable | Barton |
| cpe:2.3:a:barton:ngircd:19.1:*:*:*:*:*:*:* | 19.1 | Vulnerable | Barton |
| cpe:2.3:a:barton:ngircd:20.0:*:*:*:*:*:*:* | 20.0 | Vulnerable | Barton |
| cpe:2.3:a:barton:ngircd:20.1:*:*:*:*:*:*:* | 20.1 | Vulnerable | Barton |
| cpe:2.3:a:barton:ngircd:20.2:*:*:*:*:*:*:* | 20.2 | Vulnerable | Barton |
- cpe:2.3:a:barton:ngircd:18.0:*:*:*:*:*:*:* Versions 18.0 Vulnerable ·Barton
- cpe:2.3:a:barton:ngircd:19.0:*:*:*:*:*:*:* Versions 19.0 Vulnerable ·Barton
- cpe:2.3:a:barton:ngircd:19.1:*:*:*:*:*:*:* Versions 19.1 Vulnerable ·Barton
- cpe:2.3:a:barton:ngircd:20.0:*:*:*:*:*:*:* Versions 20.0 Vulnerable ·Barton
- cpe:2.3:a:barton:ngircd:20.1:*:*:*:*:*:*:* Versions 20.1 Vulnerable ·Barton
- cpe:2.3:a:barton:ngircd:20.2:*:*:*:*:*:*:* Versions 20.2 Vulnerable ·Barton
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2013-5580
- 2026-10-03 Alias added: GHSA-8g77-rrv8-793x
References
More Barton Ngircd vulnerabilities
- TI-2005-00167 Integer underflow in the Lists_MakeMask() function in lists.c in ngIRCd before 0.8.2… CVSS 3.1CRITICAL 9.8
- TI-2020-11076 The Server-Server protocol implementation in ngIRCd before 26~rc2 allows an out-of-bounds… CVSS 3.1HIGH 7.5
Sources
- CVE-2013-5580 · CVE Program
- CVE-2013-5580 · NVD
- FIRST EPSS
- GHSA-8g77-rrv8-793x · GitHub Advisory Database · CC BY 4.0
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