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USN-2477-1: libevent vulnerability

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USN-2477-1: libevent vulnerability

Severity
8
CVSS
(AV:N/AC:L/Au:N/C:P/I:P/A:P)
Published
01/19/2015
Created
07/25/2018
Added
01/21/2015
Modified
07/09/2020

Description

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.

Solution(s)

  • ubuntu-upgrade-libevent-1-4-2
  • ubuntu-upgrade-libevent-2-0-5

References

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