Description
re2c before 2.0 has uncontrolled recursion that causes stack consumption in find_fixed_tags.
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 | re2c | 3.1-1 | — |
| Debian 13 | re2c | 3.1-1 | — |
| Debian 12 | re2c | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.04 LTS | re2c | No fix yet | — |
| Ubuntu 25.10 | re2c | No fix yet | — |
| Ubuntu 24.04 LTS | re2c | No fix yet | — |
| Ubuntu 22.04 LTS | re2c | No fix yet | — |
| Ubuntu 20.04 LTS | re2c | No fix yet | — |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | re2c | No fix yet | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP5 | re2c | 1.0.3-150000.3.3.1 | SUSE-SU-2023:3353-1 |
| SLES 15 SP4 | re2c | 1.0.3-150000.3.3.1 | SUSE-SU-2023:3353-1 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SUSE Manager Server 4.2 | re2c | 1.0.3-150000.3.3.1 | SUSE-SU-2023:3353-1 |
| SUSE Manager Proxy 4.2 | re2c | 1.0.3-150000.3.3.1 | SUSE-SU-2023:3353-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.5 | re2c | 1.0.3-150000.3.3.1 | SUSE-SU-2023:3353-1 |
| openSUSE Leap 15.4 | re2c | 1.0.3-150000.3.3.1 | SUSE-SU-2023:3353-1 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 2 (CBL-Mariner) | re2c | 2.0-1 | — |
Advisories 1
- SUSE-SU-2023:3353-1 Security update for re2c SUSE / openSUSE Security Updates · May 2, 2025