Skip to content

CVE-2026-28389 on CTRL-OS 24.05

Packages: openssl, openssl_3_0, openssl_3_2, openssl_3_3

Status: Resolved

CVE Information

Issue summary: During processing of a crafted CMS EnvelopedData message with KeyAgreeRecipientInfo a NULL pointer dereference can happen.

Impact summary: Applications that process attacker-controlled CMS data may crash before authentication or cryptographic operations occur resulting in Denial of Service.

When a CMS EnvelopedData message that uses KeyAgreeRecipientInfo is processed, the optional parameters field of KeyEncryptionAlgorithmIdentifier is examined without checking for its presence. This results in a NULL pointer dereference if the field is missing.

Applications and services that call CMS_decrypt() on untrusted input (e.g., S/MIME processing or CMS-based protocols) are vulnerable.

The FIPS modules in 3.6, 3.5, 3.4, 3.3 and 3.0 are not affected by this issue, as the affected code is outside the OpenSSL FIPS module boundary.

Updates

2026-05-15 16:22 CEST

Metadata changes:

  • Status for package openssl: “Resolved” (8d49aacc8164efc444c223d33744588b801dce46)
  • Status for package openssl_3_0: “Resolved” (8d49aacc8164efc444c223d33744588b801dce46)
  • Status for package openssl_3_2: “Resolved” (8d49aacc8164efc444c223d33744588b801dce46)
  • Status for package openssl_3_3: “Resolved” (8d49aacc8164efc444c223d33744588b801dce46)

Comment:

Resolved by upgrading to OpenSSL 3.3.7 and 3.0.20.

(Amended on: 2026-05-15 16:23 CEST)

2026-05-15 11:13 CEST

Metadata changes:

  • Status for package openssl: “In Progress”
  • Status for package openssl_3_0: “In Progress”
  • Status for package openssl_3_2: “In Progress”
  • Status for package openssl_3_3: “In Progress”

2026-05-15 11:12 CEST

Metadata changes:

  • Status for package openssl: “Acknowledged”
  • Status for package openssl_3_0: “Acknowledged”
  • Status for package openssl_3_2: “Acknowledged”
  • Status for package openssl_3_3: “Acknowledged”

2026-04-29 00:30 CEST

Metadata changes:

  • Status for package openssl: “Plausible”

(Amended on: 2026-05-13 10:50 CEST)