Vulnerability Report

CVE-2015-6525

Title: Libevent Project Libevent Memory Corruption

Memory Corruption

Proof Of Concept

No public PoC currently indexed for CVE-2015-6525.

CWE Category CWE-189
Published Date Aug 24, 2015
Modified Date Jun 17, 2026
Exploit Status Not Found
Score 7.5 CVSS v2.0
Exploit Probability (EPSS)
4.81%

Vulnerability Summary

CVE-2015-6525: Multiple integer overflows in the evbuffer API in Libevent 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_prepend, (3) evbuffer_expand, (4) exbuffer_reserve_space, or (5) evbuffer_read function, which triggers a heap-based buffer overflow or an infinite loop. NOTE: this identifier was SPLIT from CVE-2014-6272 per ADT3 due to different affected versions.

Impacted Vendors

N
niels_provos 1
L
libevent_project 1

Reference Links

http://archives.seul.org/libevent/users/Jan-2015/msg00010.html http://www.debian.org/security/2015/dsa-3119 http://archives.seul.org/libevent/users/Jan-2015/msg00010.html http://www.debian.org/security/2015/dsa-3119
CVSS v2.0
Source Entity [email protected]
Severity HIGH
7.5
Access Vector
N/A
Authentication
N/A
RAW VECTOR AV:N/AC:L/Au:N/C:P/I:P/A:P

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2015-6525 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data or affected products updated.

PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector N/A
Complexity N/A
Privileges N/A
Interaction NONE
CVSS Vector String AV:N/AC:L/Au:N/C:P/I:P/A:P

Affected Stack

No specific products linked.