Null pointer deref in X509_issuer_and_serial_hash (CVE-2021-23841)
| Advisory ID | CVE Number | Date discovered | Severity | Advisory revision |
|---|---|---|---|---|
| STORM-2021-013 | CVE-2021-23841 | 02/26/2021 | low | v1 |
Vulnerability details
OpenSSL publish a security update version.
The concerned version are vulnerable against a forged certificate with an issuer field, this could cause a dereferencment of the null pointer and cause the concerned version of the application to crash or a DoS of the application
Impacted products
| Products | Severity | Detail |
|---|---|---|
| Stormshield Management Center | low | Impacted |
Revisions
| Version | Date | Description |
|---|---|---|
| v1 | 04/09/2021 | Initial release |
Stormshield Management Center |
CVSS v3.1 Overall Score: 3.1
|
Analysis |
Impacted version |
|
The concerned version are vulnerable against a forged certificate with an issuer field, this could cause a dereferencment of the null pointer and cause the concerned version of the application to crash or a DoS of the application |
|
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 | Integrity Requirement | Availability Requirement |
|---|---|---|
| Medium | High | High |
| CVSS Environmental score: 3.1 | 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) |