Vulnerability Details : CVE-2022-27007
nginx njs 0.7.2 is affected suffers from Use-after-free in njs_function_frame_alloc() when it try to invoke from a restored frame saved with njs_function_frame_save().
Vulnerability category: Memory Corruption
Products affected by CVE-2022-27007
- cpe:2.3:a:f5:njs:0.7.2:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2022-27007
0.38%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 74 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2022-27007
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
7.5
|
HIGH | AV:N/AC:L/Au:N/C:P/I:P/A:P |
10.0
|
6.4
|
NIST | |
|
9.8
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
NIST |
CWE ids for CVE-2022-27007
-
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2022-27007
-
https://security.netapp.com/advisory/ntap-20220519-0008/
April 2022 NGINX Vulnerabilities in NetApp Products | NetApp Product SecurityThird Party Advisory
-
https://github.com/nginx/njs/issues/469
Patch bypass for njs_await_fulfilled, causing UAF again · Issue #469 · nginx/njs · GitHubExploit;Issue Tracking;Patch;Third Party Advisory
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https://github.com/nginx/njs/commit/ad48705bf1f04b4221a5f5b07715ac48b3160d53
Fixed frame allocation from an awaited frame. · nginx/njs@ad48705 · GitHubPatch;Third Party Advisory
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