Multiple integer overflow errors in libevent could result in execution of arbitrary code or Denial of Service.
|Package||dev-libs/libevent on all architectures|
|Affected versions||< 2.0.22|
|Unaffected versions||>= 2.0.22|
libevent is a library to execute a function when a specific event occurs on a file descriptor.
Multiple integer overflow errors in libevent could cause a heap-based buffer overflow.
A context-dependent attacker could cause an application linked against libevent to pass an excessively long input through evbuffer, possibly resulting in execution of arbitrary code with the privileges of the process or a Denial of Service condition.
There is no known workaround at this time.
All libevent users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=dev-libs/libevent-2.0.22"
February 07, 2015
February 07, 2015: 1