Description
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.
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.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | syslog-ng | 3.38.1-1 | — |
| Debian 13 | syslog-ng | 3.38.1-1 | — |
| Debian 12 | syslog-ng | 3.38.1-1 | — |
| Debian 11 | syslog-ng | 3.28.1-2+deb11u1 | DSA-5369-1 |
| Debian 10 | syslog-ng | 3.19.1-5+deb10u1 | DLA-3348-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | syslog-ng | No fix yet | — |
| Ubuntu 26.04 LTS | syslog-ng | No fix yet | — |
| Ubuntu 25.10 | syslog-ng | No fix yet | — |
| Ubuntu 24.04 LTS | syslog-ng | No fix yet | — |
| Ubuntu 22.04 LTS | syslog-ng | No fix yet | — |
Show 4 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | syslog-ng | No fix yet | — |
| Ubuntu 18.04 LTS | syslog-ng | No fix yet | — |
| Ubuntu 16.04 LTS | syslog-ng | No fix yet | — |
| Ubuntu 14.04 LTS | syslog-ng | No fix yet | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 | syslog-ng | 3.6.4-12.11.1 | SUSE-SU-2023:0319-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SUSE Package Hub 15 SP4 | syslog-ng | 3.35.1-bp154.3.3.1 | openSUSE-SU-2023:0040-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.4 | syslog-ng | 3.35.1-bp154.3.3.1 | openSUSE-SU-2023:0040-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | syslog-ng | 3.38.1-r0 | — |
| Alpine v3.23 | syslog-ng | 3.38.1-r0 | — |
| Alpine v3.22 | syslog-ng | 3.38.1-r0 | — |
| Alpine v3.21 | syslog-ng | 3.38.1-r0 | — |
| Alpine v3.20 | syslog-ng | 3.38.1-r0 | — |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | syslog-ng | 3.38.1-r0 | — |
| Alpine v3.18 | syslog-ng | 3.38.1-r0 | — |
| Alpine v3.17 | syslog-ng | 3.38.1-r0 | — |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | syslog-ng | 4.3.1-2 | — |
| Azure Linux 2 (CBL-Mariner) | syslog-ng | 3.33.2-7 | — |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
GitHub 1 repository
-
wdahlenburg/CVE-2022-38725 ★ 0 · Aug 12, 2024
Proof of Concept for CVE-2022-38725 against syslog-ng
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Advisories 7
- DSA-5369-1 syslog-ng - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-3348-1 syslog-ng - security update Debian Security (DSA / DLA) · Mar 9, 2026
- SUSE-SU-2023:0319-1 Security update for syslog-ng SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2023:0040-1 Security update for syslog-ng SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2023-0203 Syslog-ng: Schwachstelle ermöglicht Denial of Service BSI CERT-Bund (WID) · Oct 17, 2024
- ICSA-24-046-11 Siemens SCALANCE XCM-/XRM-300 CISA ICS & IT advisories · Feb 13, 2024
- SSA-806742 SSA-806742: Multiple Vulnerabilities in SCALANCE XCM-/XRM-300 before V2.4 Siemens ProductCERT · Feb 13, 2024
References
- https://lists.balabit.hu/pipermail/syslog-ng/
- https://github.com/syslog-ng/syslog-ng/security/advisories/GHSA-7932-4fc6-pvmc
- FEDORA-2023-43eb573065 vendor-advisory
- FEDORA-2023-3d44a41fa3 vendor-advisory
- [debian-lts-announce] 20230228 [SECURITY] [DLA 3348-1] syslog-ng security update mailing-list
- DSA-5369 vendor-advisory
- GLSA-202305-09 vendor-advisory