An integer overflow in the RFC3164 parser in One Identity syslog-ng 3.0 through 3.37 allows remote attackers to cause a Denial of Service via crafted syslog input that is mishandled by the tcp or network function. syslog-ng Premium Edition 7.0.30 and syslog-ng Store Box 6.10.0 are also affected.
https://www.debian.org/security/2023/dsa-5369
https://security.gentoo.org/glsa/202305-09
https://lists.debian.org/debian-lts-announce/2023/02/msg00043.html
https://lists.balabit.hu/pipermail/syslog-ng/
https://github.com/syslog-ng/syslog-ng/security/advisories/GHSA-7932-4fc6-pvmc