Vulnerability Details : CVE-2021-40540
Potential exploit
ulfius_uri_logger in Ulfius HTTP Framework before 2.7.4 omits con_info initialization and a con_info->request NULL check for certain malformed HTTP requests.
Products affected by CVE-2021-40540
- cpe:2.3:a:ulfius_project:ulfius:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-40540
2.75%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 85 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-40540
| 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 |
References for CVE-2021-40540
-
https://github.com/babelouest/ulfius/compare/v2.7.3...v2.7.4
Comparing v2.7.3...v2.7.4 · babelouest/ulfius · GitHubPatch;Third Party Advisory
-
https://github.com/babelouest/ulfius/commit/c83f564c184a27145e07c274b305cabe943bbfaa
Fix bug when malformed HTTP requests are sent, thanks Jeremy Brown! · babelouest/ulfius@c83f564 · GitHubPatch;Third Party Advisory
-
http://packetstormsecurity.com/files/164152/Ulfius-Web-Framework-Remote-Memory-Corruption.html
Ulfius Web Framework Remote Memory Corruption ≈ Packet StormExploit;Third Party Advisory;VDB Entry
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