Cyrus SASL 2.1.23, 2.1.26, and earlier does not properly handle when a NULL value is returned upon an error by the crypt function as implemented in glibc 2.17 and later, which allows remote attackers to cause a denial of service (thread crash and consumption) via (1) an invalid salt or, when FIPS-140 is enabled, a (2) DES or (3) MD5 encrypted password, which triggers a NULL pointer dereference.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Cyrus-sasl | Cmu | * | 2.1.26 (including) |
| Cyrus-sasl | Cmu | 1.5.28 (including) | 1.5.28 (including) |
| Cyrus-sasl | Cmu | 2.1.19 (including) | 2.1.19 (including) |
| Cyrus-sasl | Cmu | 2.1.20 (including) | 2.1.20 (including) |
| Cyrus-sasl | Cmu | 2.1.21 (including) | 2.1.21 (including) |
| Cyrus-sasl | Cmu | 2.1.22 (including) | 2.1.22 (including) |
| Cyrus-sasl | Cmu | 2.1.23 (including) | 2.1.23 (including) |
| Cyrus-sasl | Cmu | 2.1.24 (including) | 2.1.24 (including) |
| Cyrus-sasl | Cmu | 2.1.25 (including) | 2.1.25 (including) |
| Cyrus-sasl2 | Ubuntu | devel | * |
| Cyrus-sasl2 | Ubuntu | raring | * |
| Cyrus-sasl2 | Ubuntu | upstream | * |
| Cyrus-sasl2 | Ubuntu | vivid | * |
| Cyrus-sasl2 | Ubuntu | vivid/stable-phone-overlay | * |
| Cyrus-sasl2 | Ubuntu | vivid/ubuntu-core | * |