Multiple integer overflows in the evbuffer API in Libevent 1.4.x before 1.4.15, 2.0.x…
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- Partial · Partial · Partial
- Fix status
- Will not fix Red Hat: no fix planned
Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-189 and the CVSS impact.
Summary
Multiple integer overflows in the evbuffer API in Libevent 1.4.x before 1.4.15, 2.0.x before 2.0.22, and 2.1.x before 2.1.5-beta allow context-dependent attackers to cause a denial of service or possibly have other unspecified impact via "insanely large inputs" to the (1) evbuffer_add, (2) evbuffer_expand, or (3) bufferevent_write function, which triggers a heap-based buffer overflow or an infinite loop. NOTE: this identifier has been SPLIT per ADT3 due to different affected versions. See CVE-2015-6525 for the functions that are only affected in 2.0 and later.
Why it matters now
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 · 41
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:* | 7.0 | Vulnerable | Debian |
| cpe:2.3:a:libevent_project:libevent:1.4.0:*:*:*:*:*:*:* | 1.4.0 | Vulnerable | Libevent Project |
| cpe:2.3:a:libevent_project:libevent:1.4.1:*:*:*:*:*:*:* | 1.4.1 | Vulnerable | Libevent Project |
| cpe:2.3:a:libevent_project:libevent:1.4.2:*:*:*:*:*:*:* | 1.4.2 | Vulnerable | Libevent Project |
| cpe:2.3:a:libevent_project:libevent:1.4.3:*:*:*:*:*:*:* | 1.4.3 | Vulnerable | Libevent Project |
| cpe:2.3:a:libevent_project:libevent:1.4.4:*:*:*:*:*:*:* | 1.4.4 | Vulnerable | Libevent Project |
| cpe:2.3:a:libevent_project:libevent:1.4.5:*:*:*:*:*:*:* | 1.4.5 | Vulnerable | Libevent Project |
| cpe:2.3:a:libevent_project:libevent:1.4.6:*:*:*:*:*:*:* | 1.4.6 | Vulnerable | Libevent Project |
| cpe:2.3:a:libevent_project:libevent:1.4.7:*:*:*:*:*:*:* | 1.4.7 | Vulnerable | Libevent Project |
| cpe:2.3:a:libevent_project:libevent:1.4.8:*:*:*:*:*:*:* | 1.4.8 | Vulnerable | Libevent Project |
- cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Debian
- cpe:2.3:a:libevent_project:libevent:1.4.0:*:*:*:*:*:*:* Versions 1.4.0 Vulnerable ·Libevent Project
- cpe:2.3:a:libevent_project:libevent:1.4.1:*:*:*:*:*:*:* Versions 1.4.1 Vulnerable ·Libevent Project
- cpe:2.3:a:libevent_project:libevent:1.4.2:*:*:*:*:*:*:* Versions 1.4.2 Vulnerable ·Libevent Project
- cpe:2.3:a:libevent_project:libevent:1.4.3:*:*:*:*:*:*:* Versions 1.4.3 Vulnerable ·Libevent Project
- cpe:2.3:a:libevent_project:libevent:1.4.4:*:*:*:*:*:*:* Versions 1.4.4 Vulnerable ·Libevent Project
- cpe:2.3:a:libevent_project:libevent:1.4.5:*:*:*:*:*:*:* Versions 1.4.5 Vulnerable ·Libevent Project
- cpe:2.3:a:libevent_project:libevent:1.4.6:*:*:*:*:*:*:* Versions 1.4.6 Vulnerable ·Libevent Project
- cpe:2.3:a:libevent_project:libevent:1.4.7:*:*:*:*:*:*:* Versions 1.4.7 Vulnerable ·Libevent Project
- cpe:2.3:a:libevent_project:libevent:1.4.8:*:*:*:*:*:*:* Versions 1.4.8 Vulnerable ·Libevent Project
Show 31 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:libevent_project:libevent:1.4.9:*:*:*:*:*:*:* | 1.4.9 | Vulnerable | Libevent Project |
| cpe:2.3:a:libevent_project:libevent:1.4.10:*:*:*:*:*:*:* | 1.4.10 | Vulnerable | Libevent Project |
| cpe:2.3:a:libevent_project:libevent:1.4.11:*:*:*:*:*:*:* | 1.4.11 | Vulnerable | Libevent Project |
| cpe:2.3:a:libevent_project:libevent:1.4.12:*:*:*:*:*:*:* | 1.4.12 | Vulnerable | Libevent Project |
| cpe:2.3:a:libevent_project:libevent:1.4.13:*:*:*:*:*:*:* | 1.4.13 | Vulnerable | Libevent Project |
| cpe:2.3:a:libevent_project:libevent:1.4.14:*:*:*:*:*:*:* | 1.4.14 | Vulnerable | Libevent Project |
| cpe:2.3:a:libevent_project:libevent:2.0.1:*:*:*:*:*:*:* | 2.0.1 | Vulnerable | Libevent Project |
| cpe:2.3:a:libevent_project:libevent:2.0.2:*:*:*:*:*:*:* | 2.0.2 | Vulnerable | Libevent Project |
| cpe:2.3:a:libevent_project:libevent:2.0.3:*:*:*:*:*:*:* | 2.0.3 | Vulnerable | Libevent Project |
| cpe:2.3:a:libevent_project:libevent:2.0.4:*:*:*:*:*:*:* | 2.0.4 | Vulnerable | Libevent Project |
| cpe:2.3:a:libevent_project:libevent:2.0.5:*:*:*:*:*:*:* | 2.0.5 | Vulnerable | Libevent Project |
| cpe:2.3:a:libevent_project:libevent:2.0.6:*:*:*:*:*:*:* | 2.0.6 | Vulnerable | Libevent Project |
| cpe:2.3:a:libevent_project:libevent:2.0.7:*:*:*:*:*:*:* | 2.0.7 | Vulnerable | Libevent Project |
| cpe:2.3:a:libevent_project:libevent:2.0.8:*:*:*:*:*:*:* | 2.0.8 | Vulnerable | Libevent Project |
| cpe:2.3:a:libevent_project:libevent:2.0.9:*:*:*:*:*:*:* | 2.0.9 | Vulnerable | Libevent Project |
| cpe:2.3:a:libevent_project:libevent:2.0.10:*:*:*:*:*:*:* | 2.0.10 | Vulnerable | Libevent Project |
| cpe:2.3:a:libevent_project:libevent:2.0.11:*:*:*:*:*:*:* | 2.0.11 | Vulnerable | Libevent Project |
| cpe:2.3:a:libevent_project:libevent:2.0.12:*:*:*:*:*:*:* | 2.0.12 | Vulnerable | Libevent Project |
| cpe:2.3:a:libevent_project:libevent:2.0.13:*:*:*:*:*:*:* | 2.0.13 | Vulnerable | Libevent Project |
| cpe:2.3:a:libevent_project:libevent:2.0.14:*:*:*:*:*:*:* | 2.0.14 | Vulnerable | Libevent Project |
| cpe:2.3:a:libevent_project:libevent:2.0.15:*:*:*:*:*:*:* | 2.0.15 | Vulnerable | Libevent Project |
| cpe:2.3:a:libevent_project:libevent:2.0.16:*:*:*:*:*:*:* | 2.0.16 | Vulnerable | Libevent Project |
| cpe:2.3:a:libevent_project:libevent:2.0.17:*:*:*:*:*:*:* | 2.0.17 | Vulnerable | Libevent Project |
| cpe:2.3:a:libevent_project:libevent:2.0.18:*:*:*:*:*:*:* | 2.0.18 | Vulnerable | Libevent Project |
| cpe:2.3:a:libevent_project:libevent:2.0.19:*:*:*:*:*:*:* | 2.0.19 | Vulnerable | Libevent Project |
| cpe:2.3:a:libevent_project:libevent:2.0.20:*:*:*:*:*:*:* | 2.0.20 | Vulnerable | Libevent Project |
| cpe:2.3:a:libevent_project:libevent:2.0.21:*:*:*:*:*:*:* | 2.0.21 | Vulnerable | Libevent Project |
| cpe:2.3:a:libevent_project:libevent:2.1.1:*:*:*:*:*:*:* | 2.1.1 | Vulnerable | Libevent Project |
| cpe:2.3:a:libevent_project:libevent:2.1.2:*:*:*:*:*:*:* | 2.1.2 | Vulnerable | Libevent Project |
| cpe:2.3:a:libevent_project:libevent:2.1.3:*:*:*:*:*:*:* | 2.1.3 | Vulnerable | Libevent Project |
| cpe:2.3:a:libevent_project:libevent:2.1.4:*:*:*:*:*:*:* | 2.1.4 | Vulnerable | Libevent Project |
- cpe:2.3:a:libevent_project:libevent:1.4.9:*:*:*:*:*:*:* Versions 1.4.9 Vulnerable ·Libevent Project
- cpe:2.3:a:libevent_project:libevent:1.4.10:*:*:*:*:*:*:* Versions 1.4.10 Vulnerable ·Libevent Project
- cpe:2.3:a:libevent_project:libevent:1.4.11:*:*:*:*:*:*:* Versions 1.4.11 Vulnerable ·Libevent Project
- cpe:2.3:a:libevent_project:libevent:1.4.12:*:*:*:*:*:*:* Versions 1.4.12 Vulnerable ·Libevent Project
- cpe:2.3:a:libevent_project:libevent:1.4.13:*:*:*:*:*:*:* Versions 1.4.13 Vulnerable ·Libevent Project
- cpe:2.3:a:libevent_project:libevent:1.4.14:*:*:*:*:*:*:* Versions 1.4.14 Vulnerable ·Libevent Project
- cpe:2.3:a:libevent_project:libevent:2.0.1:*:*:*:*:*:*:* Versions 2.0.1 Vulnerable ·Libevent Project
- cpe:2.3:a:libevent_project:libevent:2.0.2:*:*:*:*:*:*:* Versions 2.0.2 Vulnerable ·Libevent Project
- cpe:2.3:a:libevent_project:libevent:2.0.3:*:*:*:*:*:*:* Versions 2.0.3 Vulnerable ·Libevent Project
- cpe:2.3:a:libevent_project:libevent:2.0.4:*:*:*:*:*:*:* Versions 2.0.4 Vulnerable ·Libevent Project
- cpe:2.3:a:libevent_project:libevent:2.0.5:*:*:*:*:*:*:* Versions 2.0.5 Vulnerable ·Libevent Project
- cpe:2.3:a:libevent_project:libevent:2.0.6:*:*:*:*:*:*:* Versions 2.0.6 Vulnerable ·Libevent Project
- cpe:2.3:a:libevent_project:libevent:2.0.7:*:*:*:*:*:*:* Versions 2.0.7 Vulnerable ·Libevent Project
- cpe:2.3:a:libevent_project:libevent:2.0.8:*:*:*:*:*:*:* Versions 2.0.8 Vulnerable ·Libevent Project
- cpe:2.3:a:libevent_project:libevent:2.0.9:*:*:*:*:*:*:* Versions 2.0.9 Vulnerable ·Libevent Project
- cpe:2.3:a:libevent_project:libevent:2.0.10:*:*:*:*:*:*:* Versions 2.0.10 Vulnerable ·Libevent Project
- cpe:2.3:a:libevent_project:libevent:2.0.11:*:*:*:*:*:*:* Versions 2.0.11 Vulnerable ·Libevent Project
- cpe:2.3:a:libevent_project:libevent:2.0.12:*:*:*:*:*:*:* Versions 2.0.12 Vulnerable ·Libevent Project
- cpe:2.3:a:libevent_project:libevent:2.0.13:*:*:*:*:*:*:* Versions 2.0.13 Vulnerable ·Libevent Project
- cpe:2.3:a:libevent_project:libevent:2.0.14:*:*:*:*:*:*:* Versions 2.0.14 Vulnerable ·Libevent Project
- cpe:2.3:a:libevent_project:libevent:2.0.15:*:*:*:*:*:*:* Versions 2.0.15 Vulnerable ·Libevent Project
- cpe:2.3:a:libevent_project:libevent:2.0.16:*:*:*:*:*:*:* Versions 2.0.16 Vulnerable ·Libevent Project
- cpe:2.3:a:libevent_project:libevent:2.0.17:*:*:*:*:*:*:* Versions 2.0.17 Vulnerable ·Libevent Project
- cpe:2.3:a:libevent_project:libevent:2.0.18:*:*:*:*:*:*:* Versions 2.0.18 Vulnerable ·Libevent Project
- cpe:2.3:a:libevent_project:libevent:2.0.19:*:*:*:*:*:*:* Versions 2.0.19 Vulnerable ·Libevent Project
- cpe:2.3:a:libevent_project:libevent:2.0.20:*:*:*:*:*:*:* Versions 2.0.20 Vulnerable ·Libevent Project
- cpe:2.3:a:libevent_project:libevent:2.0.21:*:*:*:*:*:*:* Versions 2.0.21 Vulnerable ·Libevent Project
- cpe:2.3:a:libevent_project:libevent:2.1.1:*:*:*:*:*:*:* Versions 2.1.1 Vulnerable ·Libevent Project
- cpe:2.3:a:libevent_project:libevent:2.1.2:*:*:*:*:*:*:* Versions 2.1.2 Vulnerable ·Libevent Project
- cpe:2.3:a:libevent_project:libevent:2.1.3:*:*:*:*:*:*:* Versions 2.1.3 Vulnerable ·Libevent Project
- cpe:2.3:a:libevent_project:libevent:2.1.4:*:*:*:*:*:*:* Versions 2.1.4 Vulnerable ·Libevent Project
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 4 | Affected | No fix planned: Will not fix |
| Red Hat Enterprise Linux 5 | Affected | No fix planned: Will not fix |
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Will not fix |
| Red Hat Enterprise Linux 7 | Affected | No fix planned: Will not fix |
Not affected: 3 products
- Red Hat Enterprise Linux 5
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
Timeline
- 2026-10-02 Threatist record created from CVE-2014-6272
- 2026-10-03 Alias added: GHSA-246p-m32j-f38r
References
Sources
- CVE-2014-6272 · CVE Program
- CVE-2014-6272 · NVD
- FIRST EPSS
- GHSA-246p-m32j-f38r · GitHub Advisory Database · CC BY 4.0
- CVE-2014-6272 · Red Hat security data · CC BY 4.0
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