rlsa-2026:25239
Vulnerability from osv_rocky
Published
2026-06-13 00:03
Modified
2026-06-27 00:06
Summary
Important: openssl security update
Details

OpenSSL is a toolkit that implements the Secure Sockets Layer (SSL) and Transport Layer Security (TLS) protocols, as well as a full-strength general-purpose cryptography library.

Security Fix(es):

  • openssl: OpenSSL: Heap buffer overflow due to signed integer overflow in Unicode output sizing (CVE-2026-7383)

  • openssl: OpenSSL: Denial of Service due to heap out-of-bounds read in CMS password-based decryption (CVE-2026-9076)

  • openssl: OpenSSL: Heap buffer over-read in ASN.1 decoding can lead to denial of service or information disclosure. (CVE-2026-34180)

  • openssl: PKCS#12 Files with PBMAC1 Are Accepted with Short HMAC Keys (CVE-2026-34181)

  • openssl: CMS AuthEnvelopedData Processing May Accept Forged Messages (CVE-2026-34182)

  • openssl: Unbounded Memory Growth in the QUIC PATH_CHALLENGE Handler (CVE-2026-34183)

  • openssl: NULL pointer dereference in QUIC server initial packet handling (CVE-2026-42764)

  • openssl: Possible NULL Dereference in Password-Based CMS Decryption (CVE-2026-42766)

  • openssl: NULL Pointer Dereference in CRMF EncryptedValue Decryption (CVE-2026-42767)

  • openssl: Multi-RecipientInfo Bleichenbacher Oracle in CMS_decrypt() and PKCS7_decrypt() (CVE-2026-42768)

  • openssl: Trust-Anchor Substitution via cert/issuer Typo in CMP rootCaKeyUpdate (CVE-2026-42769)

  • openssl: FFC-DH Peer Validation Uses Attacker-Supplied q (CVE-2026-42770)

  • openssl: AES-OCB IV Ignored on EVP_Cipher() Path (CVE-2026-45445)

  • openssl: Incorrect Tag Processing for Empty Messages in AES-GCM-SIV and AES-SIV modes (CVE-2026-45446)

  • openssl: Heap Use-After-Free in OpenSSL PKCS7_verify() (CVE-2026-45447)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Credits
Rocky Enterprise Software Foundation
Red Hat

{
  "affected": [
    {
      "package": {
        "ecosystem": "Rocky Linux:9",
        "name": "openssl",
        "purl": "pkg:rpm/rocky-linux/openssl?distro=rocky-linux-9\u0026epoch=1"
      },
      "ranges": [
        {
          "database_specific": {
            "yum_repository": "BaseOS"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1:3.5.5-4.el9_8"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "credits": [
    {
      "name": "Rocky Enterprise Software Foundation"
    },
    {
      "name": "Red Hat"
    }
  ],
  "details": "OpenSSL is a toolkit that implements the Secure Sockets Layer (SSL) and Transport Layer Security (TLS) protocols, as well as a full-strength general-purpose cryptography library.\n\nSecurity Fix(es):\n\n* openssl: OpenSSL: Heap buffer overflow due to signed integer overflow in Unicode output sizing (CVE-2026-7383)\n\n* openssl: OpenSSL: Denial of Service due to heap out-of-bounds read in CMS password-based decryption (CVE-2026-9076)\n\n* openssl: OpenSSL: Heap buffer over-read in ASN.1 decoding can lead to denial of service or information disclosure. (CVE-2026-34180)\n\n* openssl: PKCS#12 Files with PBMAC1 Are Accepted with Short HMAC Keys (CVE-2026-34181)\n\n* openssl: CMS AuthEnvelopedData Processing May Accept Forged Messages (CVE-2026-34182)\n\n* openssl: Unbounded Memory Growth in the QUIC PATH_CHALLENGE Handler (CVE-2026-34183)\n\n* openssl: NULL pointer dereference in QUIC server initial packet handling (CVE-2026-42764)\n\n* openssl: Possible NULL Dereference in Password-Based CMS Decryption (CVE-2026-42766)\n\n* openssl: NULL Pointer Dereference in CRMF EncryptedValue Decryption (CVE-2026-42767)\n\n* openssl: Multi-RecipientInfo Bleichenbacher Oracle in CMS_decrypt() and PKCS7_decrypt() (CVE-2026-42768)\n\n* openssl: Trust-Anchor Substitution via cert/issuer Typo in CMP rootCaKeyUpdate (CVE-2026-42769)\n\n* openssl: FFC-DH Peer Validation Uses Attacker-Supplied q (CVE-2026-42770)\n\n* openssl: AES-OCB IV Ignored on EVP_Cipher() Path (CVE-2026-45445)\n\n* openssl: Incorrect Tag Processing for Empty Messages in AES-GCM-SIV and AES-SIV modes (CVE-2026-45446)\n\n* openssl: Heap Use-After-Free in OpenSSL PKCS7_verify() (CVE-2026-45447)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.",
  "id": "RLSA-2026:25239",
  "modified": "2026-06-27T00:06:16.715697Z",
  "published": "2026-06-13T00:03:17.085789Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://errata.rockylinux.org/RLSA-2026:25239"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2481879"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2481880"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2481881"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2481882"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2481884"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2481885"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2481887"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2481890"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2481891"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2481892"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2481893"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2481894"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2481896"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2481897"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2481898"
    }
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Important: openssl security update",
  "upstream": [
    "CVE-2026-34180",
    "CVE-2026-34181",
    "CVE-2026-34182",
    "CVE-2026-34183",
    "CVE-2026-42764",
    "CVE-2026-42766",
    "CVE-2026-42767",
    "CVE-2026-42768",
    "CVE-2026-42769",
    "CVE-2026-42770",
    "CVE-2026-45445",
    "CVE-2026-45446",
    "CVE-2026-45447",
    "CVE-2026-7383",
    "CVE-2026-9076"
  ]
}



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