In the Linux kernel, the following vulnerability has been resolved:
nfsd: call cache_put if xdr_reserve_space returns NULL
If not enough buffer space available, but idmap_lookup has triggered
lookup_fn which calls cache_get and returns successfully. Then we
missed to call cache_put here which pairs with cache_get.
Reviwed-by: Jeff Layton
CVE Status: Modified
Attribute | Value |
---|---|
Attack Complexity | LOW |
Attack Vector | LOCAL |
Availability Impact | HIGH |
Base Score | 5.5 |
Base Severity | MEDIUM |
Confidentiality Impact | NONE |
Integrity Impact | NONE |
Privileges Required | LOW |
Scope | UNCHANGED |
User Interaction | NONE |
Vector String | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Exploitability Score | 1.8 |
Impact Score | 3.6 |
Source | [email protected] |
Type | Primary |