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CVE-2015-6525

Publication date 24 August 2015

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

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.

Read the notes from the security team

Status

Package Ubuntu Release Status
libevent 15.04 vivid
Not affected
14.04 LTS trusty
Fixed 2.0.21-stable-1ubuntu1.14.04.1
12.04 LTS precise
Fixed 2.0.16-stable-1ubuntu0.1

Notes

mdeslaur

CVE was split from CVE-2014-6272, but fixes were already applied in usn-2477-1

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
libevent