CVE-2023-20897

Advisory

Salt 3005.2 and 3006.2 include a fix for CVE-2023-20897: DOS in minion return. After receiving several bad packets on the request server equal to the number of worker threads, the master will become unresponsive to return requests until restarted.
https://saltproject.io/security-announcements/2023-08-10-advisory

Affected package

Affected versions

Fixed versions

Vulnerability changelog

Changed

- Additional required package upgrades

* It's now `pyzmq>=20.0.0` on all platforms, and `<=22.0.3` just for windows.
* Upgrade to `pyopenssl==23.0.0` due to the cryptography upgrade. (63757)


Security

- fix CVE-2023-20897 by catching exception instead of letting exception disrupt connection (cve-2023-20897)
- Fixed gitfs cachedir_basename to avoid hash collisions. Added MP Lock to gitfs. These changes should stop race conditions. (cve-2023-20898)
- Upgrade to `requests==2.31.0`

Due to:
* https://github.com/advisories/GHSA-j8r2-6x86-q33q (#64336)
- Upgrade to `cryptography==41.0.3`(and therefor `pyopenssl==23.2.0` due to https://github.com/advisories/GHSA-jm77-qphf-c4w8)

Also resolves the following cryptography advisories:

Due to:
* https://github.com/advisories/GHSA-5cpq-8wj7-hf2v
* https://github.com/advisories/GHSA-x4qr-2fvf-3mr5
* https://github.com/advisories/GHSA-w7pp-m8wf-vj6r

There is no security upgrade available for Py3.5 (64595)
- Bump to `certifi==2023.07.22` due to https://github.com/advisories/GHSA-xqr8-7jwr-rhp7

Python 3.5 cannot get the updated requirements since certifi no longer supports this python version (64720)

Resources

• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-20897
• https://saltproject.io/security-announcements/2023-08-10-advisory/
• https://lists.fedoraproject.org/archives/list/[email protected]/message/OMWJIHQZXHK6FH2E3IWAZCYIRI7FLVOL/