Description
A buffer overflow vulnerability exists in the handling of wildcard backend hosts of SNIProxy 0.6.0-2 and the master branch (commit: 822bb80df9b7b345cc9eba55df74a07b498819ba). A specially crafted HTTP or TLS packet can lead to arbitrary code execution. An attacker could send a malicious packet to trigger this vulnerability.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| SNIProxy | SNIProxy | 0.6.0-2, Master 822bb80df9b7b345cc9eba55df74a07b498819ba | — |
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 | sniproxy | 0.6.0-2.1 | — |
| Debian 13 | sniproxy | 0.6.0-2.1 | — |
| Debian 12 | sniproxy | 0.6.0-2.1 | — |
| Debian 11 | sniproxy | 0.6.0-2+deb11u1 | DSA-5413-1 |
| Debian 10 | sniproxy | 0.6.0-1+deb10u1 | DLA-3406-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 24.04 LTS | sniproxy | 0.6.0-2.1build2 | — |
| Ubuntu 22.04 LTS | sniproxy | 0.6.0-2ubuntu0.22.04.1 | USN-6148-1 |
| Ubuntu 20.04 LTS | sniproxy | 0.6.0-1ubuntu0.1 | USN-6148-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 18.04 LTS | sniproxy | 0.5.0-2ubuntu0.1~esm1 | USN-6148-1 |
Advisories 3
- DSA-5413-1 sniproxy - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-3406-1 sniproxy - security update Debian Security (DSA / DLA) · Mar 9, 2026
- USN-6148-1 sniproxy vulnerability Ubuntu Security Notices (USN) · Feb 10, 2026