Description
Trustwave ModSecurity 3.0.5 through 3.0.8 before 3.0.9 allows a denial of service (worker crash and unresponsiveness) because some inputs cause a segfault in the Transaction class for some configurations.
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 | modsecurity | 3.0.9-1 | — |
| Debian 13 | modsecurity | 3.0.9-1 | — |
| Debian 12 | modsecurity | 3.0.9-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | modsecurity | No fix yet | — |
| Ubuntu 26.04 LTS | modsecurity | No fix yet | — |
| Ubuntu 25.10 | modsecurity | No fix yet | — |
| Ubuntu 24.04 LTS | modsecurity | No fix yet | — |
| Ubuntu 22.04 LTS | modsecurity | No fix yet | — |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | modsecurity | No fix yet | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SUSE Package Hub 15 SP5 | modsecurity | 3.0.10-bp155.3.3.1 | openSUSE-SU-2023:0257-1 |
| SUSE Package Hub 15 SP4 | modsecurity | 3.0.10-bp154.2.3.1 | openSUSE-SU-2023:0269-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.5 | modsecurity | 3.0.10-bp155.3.3.1 | openSUSE-SU-2023:0257-1 |
| openSUSE Leap 15.4 | modsecurity | 3.0.10-bp154.2.3.1 | openSUSE-SU-2023:0269-1 |
Wolfi
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Wolfi rolling | modsecurity | 3.0.9-r0 | — |
Advisories 3
- openSUSE-SU-2023:0257-1 Security update for modsecurity SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2023:0269-1 Security update for modsecurity SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2023-1096 Trustwave ModSecurity: Schwachstelle ermöglicht Denial of Service BSI CERT-Bund (WID) · Apr 27, 2023