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.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | rsyslog | 8.23.0-2.1 | openSUSE-SU-2024:10498-1 |
Advisories 1
- openSUSE-SU-2024:10498-1 rsyslog-8.23.0-2.1 on GA media SUSE / openSUSE Security Updates · May 7, 2025