In postfix-mta-sts-resolver before 0.5.1, All users can receive incorrect response from daemon under rare conditions, rendering downgrade…
GitHub_M·CWE-757·Published 2019-07-05
In postfix-mta-sts-resolver before 0.5.1, All users can receive incorrect response from daemon under rare conditions, rendering downgrade of effective STS policy.
In postfix-mta-sts-resolver before 0.5.1, All users can receive incorrect response from daemon under rare conditions, rendering downgrade of effective STS policy.
In postfix-mta-sts-resolver before 0.5.1, All users can receive incorrect response from daemon under rare conditions, rendering downgrade of effective STS policy.
## Incorrect query parsing ### Impact All users of versions prior to 0.5.1 can receive incorrect response from daemon under rare conditions, rendering downgrade of effective STS policy. ### Patches Problem has been patched in version 0.5.1 ### Workarounds Users may remediate this vulnerability without upgrading by applying [these patches](https://gist.github.com/Snawoot/b9da85d6b26dea5460673b29df1adc6b) to older suppoorted versions. ### For more information If you have any questions or comments about this advisory: * Open an issue in [postfix-mta-sts-resolver repo](https://github.com/Snawoot/postfix-mta-sts-resolver) * Email me at [vladislav at vm-0 dot com](mailto:vladislav-ex-gh-advisory@vm-0.com)
En postfix-mta-sts-resolver versiones anteriores a 0.5.1, todos los usuarios pueden recibir una respuesta incorrecta del demonio bajo condiciones extrañas, renderizando una degradación de la política STS efectiva.
| Version | Type | Source | Base | Exp | Impact | Vector |
|---|---|---|---|---|---|---|
| 2.0 | Primary | NVD | 4.3 | 8.6 | 2.9 | AV:N/AC:M/Au:N/C:N/I:N/A:P |
| 3.1 | Primary | cve.org | 6.9 | — | — | CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:N |
| 3.1 | Primary | cve.org | 6.9 | — | — | CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:N |
| 3.1 | Primary | NVD | 5.9 | 2.2 | 3.6 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H |
| 3.1 | Secondary | GHSA | 6.9 | — | — | CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:N |
| 3.1 | Secondary | NVD | 6.9 | 0.6 | 5.8 | CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:N |
| 4.0 | Secondary | GHSA | 8.7 | — | — | CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N |