Vulnerability-Lookup

CVE-2026-45383 (GCVE-0-2026-45383)

Vulnerability from cvelistv5 – Published: 2026-07-21 21:00 – Updated: 2026-07-22 15:36

Title

libde265 has a heap buffer overflow (OOB read) in decode_slice_unit_WPP() via out-of-bounds CtbAddrRStoTS access — libde265 <= v1.0.18

Summary

libde265 is an open source implementation of the h.265 video codec. Versions prior to 1.0.19 have a heap buffer overflow (out-of-bounds READ) exists in `decoder_context::decode_slice_unit_WPP()` in `libde265/decctx.cc`. When decoding a WPP (Wavefront Parallel Processing) HEVC slice, `ctbAddrRS` is computed as `ctbRow * ctbsWidth` inside the entry-point loop. If the PPS/SPS headers are crafted so that this value exceeds `pps.CtbAddrRStoTS.size()`, the subsequent array access `pps.CtbAddrRStoTS[ctbAddrRS]` reads past the end of the allocated vector, triggering a heap-buffer-overflow confirmed by AddressSanitizer. Version 1.0.19 patches the issue.

Severity

6.9 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-125 - Out-of-bounds Read

Assigner

GitHub_M

References

1 reference

URL	Tags
https://github.com/strukturag/libde265/security/a…	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
strukturag	libde265	Affected: < 1.0.19

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-45383

Vulnerability from fkie_nvd - Published: 2026-07-21 21:16 - Updated: 2026-07-22 16:17

Severity

6.9 (Medium) - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

Summary

References

	URL	Tags
	security-advisories@github.com	https://github.com/strukturag/libde265/security/advisories/GHSA-wg9q-ppqw-6q38

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "libde265",
          "vendor": "strukturag",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 1.0.19"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "libde265 is an open source implementation of the h.265 video codec. Versions prior to 1.0.19 have a heap buffer overflow (out-of-bounds READ) exists in `decoder_context::decode_slice_unit_WPP()` in `libde265/decctx.cc`. When decoding a WPP (Wavefront Parallel Processing) HEVC slice, `ctbAddrRS` is computed as `ctbRow * ctbsWidth` inside the entry-point loop. If the PPS/SPS headers are crafted so that this value exceeds `pps.CtbAddrRStoTS.size()`, the subsequent array access `pps.CtbAddrRStoTS[ctbAddrRS]` reads past the end of the allocated vector, triggering a heap-buffer-overflow confirmed by AddressSanitizer. Version 1.0.19 patches the issue."
    }
  ],
  "id": "CVE-2026-45383",
  "lastModified": "2026-07-22T16:17:23.117",
  "metrics": {
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        "cvssData": {
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          "attackRequirements": "NONE",
          "attackVector": "NETWORK",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 6.9,
          "baseSeverity": "MEDIUM",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
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ubuntu-cve-2026-45383

Vulnerability from osv_ubuntu

Published

2026-07-01 00:00

Modified

2026-07-21 10:41

Summary

Details

[Unknown description]

Severity

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2026-45383	REPORT
	https://www.cve.org/CVERecord?id=CVE-2026-45383	REPORT
	https://github.com/strukturag/libde265/security/a…	REPORT
	https://ubuntu.com/security/notices/USN-8573-1	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "libde265-0",
            "binary_version": "1.0.2-2ubuntu0.16.04.1~esm6"
          },
          {
            "binary_name": "libde265-examples",
            "binary_version": "1.0.2-2ubuntu0.16.04.1~esm6"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:16.04:LTS",
        "name": "libde265",
        "purl": "pkg:deb/ubuntu/libde265@1.0.2-2ubuntu0.16.04.1~esm6?arch=source\u0026distro=esm-apps-legacy/xenial"
      },
      "ranges": [
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            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.0.2-1build1",
        "1.0.2-2",
        "1.0.2-2ubuntu0.16.04.1~esm1",
        "1.0.2-2ubuntu0.16.04.1~esm2",
        "1.0.2-2ubuntu0.16.04.1~esm3",
        "1.0.2-2ubuntu0.16.04.1~esm4",
        "1.0.2-2ubuntu0.16.04.1~esm5"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "libde265-0",
            "binary_version": "1.0.2-2ubuntu0.18.04.1~esm6"
          },
          {
            "binary_name": "libde265-examples",
            "binary_version": "1.0.2-2ubuntu0.18.04.1~esm6"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:18.04:LTS",
        "name": "libde265",
        "purl": "pkg:deb/ubuntu/libde265@1.0.2-2ubuntu0.18.04.1~esm6?arch=source\u0026distro=esm-apps/bionic"
      },
      "ranges": [
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          ],
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        }
      ],
      "versions": [
        "1.0.2-2build1",
        "1.0.2-2ubuntu0.18.04.1~esm1",
        "1.0.2-2ubuntu0.18.04.1~esm2",
        "1.0.2-2ubuntu0.18.04.1~esm3",
        "1.0.2-2ubuntu0.18.04.1~esm4",
        "1.0.2-2ubuntu0.18.04.1~esm5"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "libde265-0",
            "binary_version": "1.0.4-1ubuntu0.4+esm2"
          },
          {
            "binary_name": "libde265-examples",
            "binary_version": "1.0.4-1ubuntu0.4+esm2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:20.04:LTS",
        "name": "libde265",
        "purl": "pkg:deb/ubuntu/libde265@1.0.4-1ubuntu0.4+esm2?arch=source\u0026distro=esm-apps/focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
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            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.0.3-1build1",
        "1.0.4-1",
        "1.0.4-1build1",
        "1.0.4-1ubuntu0.1",
        "1.0.4-1ubuntu0.2",
        "1.0.4-1ubuntu0.3",
        "1.0.4-1ubuntu0.4",
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      ]
    },
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
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        "ecosystem": "Ubuntu:Pro:22.04:LTS",
        "name": "libde265",
        "purl": "pkg:deb/ubuntu/libde265@1.0.8-1ubuntu0.3+esm2?arch=source\u0026distro=esm-apps/jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.0.8-1ubuntu0.3+esm2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.0.8-1",
        "1.0.8-1ubuntu0.1",
        "1.0.8-1ubuntu0.2",
        "1.0.8-1ubuntu0.3",
        "1.0.8-1ubuntu0.3+esm1"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libde265-0",
            "binary_version": "1.0.15-1ubuntu0.1"
          },
          {
            "binary_name": "libde265-examples",
            "binary_version": "1.0.15-1ubuntu0.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "libde265",
        "purl": "pkg:deb/ubuntu/libde265@1.0.15-1ubuntu0.1?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.0.15-1ubuntu0.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.0.12-2",
        "1.0.13-1",
        "1.0.15-1",
        "1.0.15-1build1",
        "1.0.15-1build2",
        "1.0.15-1build3"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libde265-0",
            "binary_version": "1.0.16-1"
          },
          {
            "binary_name": "libde265-examples",
            "binary_version": "1.0.16-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "libde265",
        "purl": "pkg:deb/ubuntu/libde265@1.0.16-1?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.0.15-1build5",
        "1.0.16-1"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "libde265-0",
            "binary_version": "1.0.16-1ubuntu0.1~esm1"
          },
          {
            "binary_name": "libde265-examples",
            "binary_version": "1.0.16-1ubuntu0.1~esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:26.04:LTS",
        "name": "libde265",
        "purl": "pkg:deb/ubuntu/libde265@1.0.16-1ubuntu0.1~esm1?arch=source\u0026distro=esm-apps/resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.0.16-1ubuntu0.1~esm1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.0.16-1",
        "1.0.16-1build1"
      ]
    }
  ],
  "aliases": [],
  "details": "[Unknown description]",
  "id": "UBUNTU-CVE-2026-45383",
  "modified": "2026-07-21T10:41:51Z",
  "published": "2026-07-01T00:00:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-45383"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-45383"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/strukturag/libde265/security/advisories/GHSA-wg9q-ppqw-6q38"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-8573-1"
    }
  ],
  "related": [
    "USN-8573-1"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2026-45383"
  ]
}

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.

Action not permitted

CVE-2026-45383 (GCVE-0-2026-45383)

FKIE_CVE-2026-45383

ubuntu-cve-2026-45383

Vulnerability from osv_ubuntu

Tags

Sightings

Nomenclature