The ares_init:randomize_key function in c-ares, on platforms other than Windows, uses a weak facility for producing a random number sequence (Unix rand), which makes it easier for remote attackers to spoof DNS responses by guessing certain values.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| C-ares | Daniel_stenberg | 1.0 (including) | 1.0 (including) |
| C-ares | Daniel_stenberg | 1.1 (including) | 1.1 (including) |
| C-ares | Daniel_stenberg | 1.2 (including) | 1.2 (including) |
| C-ares | Daniel_stenberg | 1.2.1 (including) | 1.2.1 (including) |
| C-ares | Daniel_stenberg | 1.3 (including) | 1.3 (including) |
| C-ares | Daniel_stenberg | 1.3.1 (including) | 1.3.1 (including) |
| C-ares | Daniel_stenberg | 1.3.2 (including) | 1.3.2 (including) |
References
- http://cool.haxx.se/cvs.cgi/curl/ares/CHANGES?rev=HEAD\u0026content-type=text/vnd.viewcvs-markup
- http://osvdb.org/37172
- http://www.securityfocus.com/bid/24386
- https://exchange.xforce.ibmcloud.com/vulnerabilities/34980
- http://cool.haxx.se/cvs.cgi/curl/ares/CHANGES?rev=HEAD\u0026content-type=text/vnd.viewcvs-markup
- http://osvdb.org/37172
- http://www.securityfocus.com/bid/24386
- https://exchange.xforce.ibmcloud.com/vulnerabilities/34980