OpenSSL int overflow in CipherUpdate (CVE-2021-23840)
| Advisory ID | CVE Number | Date discovered | Severity | Advisory revision |
|---|---|---|---|---|
| STORM-2021-012 | CVE-2021-23840 | 02/26/2021 | medium | v1 |
Vulnerability details
Following a new security update of NodeJS for the TLS branch.
A new vulnerability has been detected on SMC.
With a forged certificate an attackant could make SMC crash.
Impacted products
| Products | Severity | Detail |
|---|---|---|
| Stormshield Management Center | medium | Impacted |
Revisions
| Version | Date | Description |
|---|---|---|
| v1 | 04/09/2021 | Initial release |
Stormshield Management Center |
CVSS v3.1 Overall Score: 4.7
|
Analysis |
Impacted version |
|
With a forged certificate an attackant could cause the application to crash for the concerned versions. |
|
Workaround solution |
Solution |
|
There is no workaround solution. |
The 2.8.2 update will fix this vulnerability. |
| Attack Vector | Attack Complexity | Privileges Required | User Interaction | Scope | Confidentiality Impact | Integrity Impact | Availability impact |
|---|---|---|---|---|---|---|---|
| Network | High | None | Required | Unchanged | None | None | Low |
| CVSS Base score: 3.1 | CVSS Vector: (AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L) |
| Exploit Code Maturity | Remediation Level | Report Confidence |
|---|---|---|
| Unproven that exploit exists | Official fix | Unknown |
| CVSS Temporal score: 2.5 | CVSS Vector: (AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L/E:U/RL:O/RC:U) |
| Confidentiality Requirement (CR) | Integrity Requirement (IR) | Availability Requirement (AR) |
|---|---|---|
| Medium | High | High |
| CVSS Environmental score: 4.7 | CVSS Vector: (AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L/E:U/RL:O/RC:U/CR:M/IR:H/AR:H/MAV:X/MAC:X/MPR:X/MUI:X/MS:X/MC:X/MI:X/MA:X) |