Description
An issue found in TCPReplay v.4.4.3 allows a remote attacker to cause a denial of service via the read_hexstring function at the utils.c:309 endpoint.
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 | tcpreplay | 4.4.4-1 | — |
| Debian 13 | tcpreplay | 4.4.4-1 | — |
| Debian 12 | tcpreplay | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 24.04 LTS | tcpreplay | 4.4.4-1ubuntu0.1~esm1 | USN-7231-1 |
| Ubuntu Pro 22.04 LTS | tcpreplay | 4.3.4-1ubuntu0.1~esm2 | USN-7231-1 |
| Ubuntu Pro 20.04 LTS | tcpreplay | 4.3.2-1ubuntu0.1~esm3 | USN-7231-1 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 18.04 LTS | tcpreplay | 4.2.6-1ubuntu0.1~esm5 | USN-7231-1 |
| Ubuntu Pro 16.04 LTS | tcpreplay | 3.4.4-2+deb8u1ubuntu0.1~esm3 | USN-7231-1 |
Advisories 1
- USN-7231-1 tcpreplay vulnerabilities Ubuntu Security Notices (USN) · Jun 25, 2026
References
- https://github.com/appneta/tcpreplay/issues/787
- FEDORA-2023-37bdea9241 vendor-advisory
- FEDORA-2023-7ffeed7339 vendor-advisory
- FEDORA-2023-96ffd40fd4 vendor-advisory