rlsa-2026:20612
Vulnerability from osv_rocky
Published
2026-06-02 18:03
Modified
2026-06-16 18:05
Summary
Important: gnutls security update
Details

The gnutls packages provide the GNU Transport Layer Security (GnuTLS) library, which implements cryptographic algorithms and protocols such as SSL, TLS, and DTLS.

Security Fix(es):

  • gnutls: Fix qsort comparator in DTLS reassembly (CVE-2026-42009)
  • gnutls: Fix crashing on an underflow with a DTLS datagram (CVE-2026-33845)
  • gnutls: Fix RSA-PSK identity truncation (CVE-2026-42010)
  • gnutls: Fix case-sensitivity of domain name comparison in name constraints (CVE-2026-3833)
  • gnutls: Fix intersecting empty name constraints (CVE-2026-42011)
  • gnutls: Denial of Service via heap buffer overflow in DTLS handshake fragment reassembly (CVE-2026-33846)

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.

Severity
8.2 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N
Credits
Rocky Enterprise Software Foundation
Red Hat
References
To clipboard 

{
  "affected": [
    {
      "package": {
        "ecosystem": "Rocky Linux:9",
        "name": "gnutls",
        "purl": "pkg:rpm/rocky-linux/gnutls?distro=rocky-linux-9\u0026epoch=0"
      },
      "ranges": [
        {
          "database_specific": {
            "yum_repository": "BaseOS"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0:3.8.10-4.el9_8"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "credits": [
    {
      "name": "Rocky Enterprise Software Foundation"
    },
    {
      "name": "Red Hat"
    }
  ],
  "details": "The gnutls packages provide the GNU Transport Layer Security (GnuTLS) library,\nwhich implements cryptographic algorithms and protocols such as SSL, TLS, and\nDTLS.\n\nSecurity Fix(es):\n\n* gnutls: Fix qsort comparator in DTLS reassembly (CVE-2026-42009)\n* gnutls: Fix crashing on an underflow with a DTLS datagram\n(CVE-2026-33845)\n* gnutls: Fix RSA-PSK identity truncation (CVE-2026-42010)\n* gnutls: Fix case-sensitivity of domain name comparison in name\nconstraints (CVE-2026-3833)\n* gnutls: Fix intersecting empty name constraints (CVE-2026-42011)\n* gnutls: Denial of Service via heap buffer overflow in DTLS handshake\nfragment reassembly (CVE-2026-33846)\n\nFor more details about the security issue(s), including the impact, a CVSS\nscore, acknowledgments, and other related information, refer to the CVE page(s)\nlisted in the References section.",
  "id": "RLSA-2026:20612",
  "modified": "2026-06-16T18:05:55.863852Z",
  "published": "2026-06-02T18:03:08.506628Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://errata.rockylinux.org/RLSA-2026:20612"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2445762"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2445763"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2450624"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2450625"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2467279"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2467289"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2467437"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2467441"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2467448"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2467450"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2467451"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2467678"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2467686"
    }
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Important: gnutls security update",
  "upstream": [
    "CVE-2026-33845",
    "CVE-2026-33846",
    "CVE-2026-3832",
    "CVE-2026-3833",
    "CVE-2026-42009",
    "CVE-2026-42010",
    "CVE-2026-42011",
    "CVE-2026-42012",
    "CVE-2026-42013",
    "CVE-2026-42014",
    "CVE-2026-42015",
    "CVE-2026-5260",
    "CVE-2026-5419"
  ]
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.