Summary
TimeStamp Response verification code where an ASN1_TYPE union member is accessed without first validating the type, causing an invalid or NULL pointer dereference when processing a malformed TimeStamp Response file. An application calling TS_RESP_verify_response() with a malformed TimeStamp Response can be caused to dereference an invalid or NULL pointer when reading, resulting in a Denial of Service. The functions ossl_ess_get_signing_cert() and ossl_ess_get_signing_cert_v2() access the signing cert attribute value without validating its type. When the type is not V_ASN1_SEQUENCE, this results in accessing invalid memory through the ASN1_TYPE union, causing a crash.
Products not listed in the Impact Details section have not been evaluated. Furthermore, products that have exceeded any software maintenance time periods are also not evaluated and will not be published. Please consult End of Sale and End of Service Life - Extreme Networks for the EOL notices related to the product under question.
Products Potentially Affected
None
Impact Details
|
OS/Product
|
Exposure
|
|
ExtremeAnalytics for Site Engine
|
Yes
|
|
ExtremeCloud IQ - Site Engine (XIQ-SE)
|
Yes
|
|
ExtremeControl for Site Engine
|
Yes
|
Repair Recommendations
ExtremeAnalytics for Site Engine:
- Fixed in 26.02.11 or later.
ExtremeCloud IQ - Site Engine (XIQ-SE):
- Fixed in 26.02.11 or later.
ExtremeControl for Site Engine:
- Fixed in 26.02.11 or later.
Please see the full Security Advisory here for more details and future updates.
