One Article Review
| Source |  CVE Liste |
|---|---|
| Identifiant | 3467485 |
| Date de publication | 2021-10-04 18:15:08 (vue: 2021-10-04 21:05:58) |
| Titre | CVE-2021-32675 |
| Texte | Redis is an open source, in-memory database that persists on disk. When parsing an incoming Redis Standard Protocol (RESP) request, Redis allocates memory according to user-specified values which determine the number of elements (in the multi-bulk header) and size of each element (in the bulk header). An attacker delivering specially crafted requests over multiple connections can cause the server to allocate significant amount of memory. Because the same parsing mechanism is used to handle authentication requests, this vulnerability can also be exploited by unauthenticated users. The problem is fixed in Redis versions 6.2.6, 6.0.16 and 5.0.14. An additional workaround to mitigate this problem without patching the redis-server executable is to block access to prevent unauthenticated users from connecting to Redis. This can be done in different ways: Using network access control tools like firewalls, iptables, security groups, etc. or Enabling TLS and requiring users to authenticate using client side certificates. |
| Envoyé | Oui |
| Condensat | 2021 32675 access according additional allocate allocates also amount attacker authenticate authentication because block bulk can cause certificates client connecting connections control crafted cve database delivering determine different disk done each element elements enabling etc executable exploited firewalls fixed from groups handle header incoming iptables like mechanism memory mitigate multi multiple network number open over parsing patching persists prevent problem protocol redis request requests requiring resp same security server side significant size source specially specified standard tls tools unauthenticated used user users using values versions vulnerability ways: when which without workaround |
| Tags | Vulnerability Patching |
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