Description
There is a DOS attack vulnerability in Apache Traffic Server (ATS) 5.2.0 to 5.3.2, 6.0.0 to 6.2.0, and 7.0.0 with the TLS handshake. This issue can cause the server to coredump.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Apache Software Foundation | Apache Traffic Server | 5.2.0 to 5.3.2, 6.0.0 to 6.2.0, 7.0.0 | — |
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 12 | trafficserver | 7.1.2+ds-1 | — |
| Debian 9 | trafficserver | 7.0.0-6+deb9u1 | DSA-4128-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 16.04 LTS | trafficserver | No fix yet | — |
Advisories 1
- DSA-4128-1 trafficserver - security update Debian Security (DSA / DLA) · Mar 9, 2026
References
- DSA-4128 vendor-advisory
- [dev] 20180227 [ANNOUNCE] Apache Traffic Server vulnerability with TLS handshake - CVE-2017-7671 mailing-list