Description
Ettercap through 0.8.4.1 contains an out-of-bounds read vulnerability in Parse_NTLM_Auth() in src/dissectors/ec_http.c due to unvalidated NTLM message offsets. Attackers can send a crafted HTTP Authorization header observed by Ettercap to read beyond the buffer, disclosing memory or crashing the process.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Ettercap | ettercap | ≤ 0.8.4.1 | — |
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 13 | ettercap | No fix yet | — |
| Debian 12 | ettercap | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | ettercap | No fix yet | — |
| Ubuntu 26.04 LTS | ettercap | No fix yet | — |
| Ubuntu 24.04 LTS | ettercap | No fix yet | — |
| Ubuntu 22.04 LTS | ettercap | No fix yet | — |
| Ubuntu 20.04 LTS | ettercap | No fix yet | — |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | ettercap | No fix yet | — |
| Ubuntu 16.04 LTS | ettercap | No fix yet | — |
References
- GitHub Security Advisory (GHSA-jw9q-j2rm-94j2) vendor-advisory
- https://github.com/Ettercap/ettercap/commit/1d8badb713579419a29a494bb463a1af59707e98 patch
- https://github.com/Ettercap/ettercap/pull/1330 issue-tracking patch
- https://github.com/Ettercap/ettercap/blob/v0.8.4.1/src/dissectors/ec_http.c#L505-L512 technical-description
- VulnCheck Advisory: Ettercap through 0.8.4.1 Out-of-Bounds Read via HTTP NTLM Authentication Parsing third-party-advisory