CVE-2013-4758

critical

Description

Double free vulnerability in the writeDataError function in the ElasticSearch plugin (omelasticsearch) in rsyslog before 7.4.2 and before 7.5.2 devel, when errorfile is set to local logging, allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a crafted JSON response.

References

http://www.rsyslog.com/rsyslog-7-5-2-v7-devel-released/

http://www.rsyslog.com/rsyslog-7-4-2-v7-stable-released/

http://www.openwall.com/lists/oss-security/2013/07/05/2

Details

Source: Mitre, NVD

Published: 2013-10-04

Updated: 2026-06-16

Risk Information

CVSS v2

Base Score: 6.8

Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P

Severity: Medium

CVSS v3

Base Score: 9.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: Critical

EPSS

EPSS: 0.01216