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.

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-137-1 libevent security update
Debian DSA Debian DSA DSA-3119-1 libevent security update
EUVD EUVD EUVD-2014-6158 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.
Ubuntu USN Ubuntu USN USN-2477-1 libevent vulnerability
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Sun, 13 Jul 2025 13:45:00 +0000

Type Values Removed Values Added
Metrics epss

{'score': 0.00513}

epss

{'score': 0.01085}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: debian

Published:

Updated: 2024-08-06T12:10:13.286Z

Reserved: 2014-09-09T00:00:00.000Z

Link: CVE-2014-6272

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Deferred

Published: 2015-08-24T14:59:01.353

Modified: 2025-04-12T10:46:40.837

Link: CVE-2014-6272

cve-icon Redhat

Severity : Moderate

Publid Date: 2015-01-05T00:00:00Z

Links: CVE-2014-6272 - Bugzilla

cve-icon OpenCVE Enrichment

No data.