CVE-2015-6525

Description

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.

Category

7.5
CVSS
Severity: High
CVSS 2.0 •
EPSS 1.07% Top 25%
Vendor Advisory debian.org Vendor Advisory seul.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://archives.seul.org/libevent/users/Jan-2015/msg00010.html mailing list vendor advisory
http://www.debian.org/security/2015/dsa-3119 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2015-6525?
CVE-2015-6525 has been scored as a high severity vulnerability.
How to fix CVE-2015-6525?
To fix CVE-2015-6525, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2015-6525 being actively exploited in the wild?
It is possible that CVE-2015-6525 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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