Vulnerability-Lookup

GHSA-JH3F-G934-RW77

Vulnerability from github – Published: 2025-02-27 18:31 – Updated: 2025-02-27 18:31

Details

In the Linux kernel, the following vulnerability has been resolved:

lz4: fix LZ4_decompress_safe_partial read out of bound

When partialDecoding, it is EOF if we've either filled the output buffer or can't proceed with reading an offset for following match.

In some extreme corner cases when compressed data is suitably corrupted, UAF will occur. As reported by KASAN [1], LZ4_decompress_safe_partial may lead to read out of bound problem during decoding. lz4 upstream has fixed it [2] and this issue has been disscussed here [3] before.

current decompression routine was ported from lz4 v1.8.3, bumping lib/lz4 to v1.9.+ is certainly a huge work to be done later, so, we'd better fix it first.

[1] https://lore.kernel.org/all/000000000000830d1205cf7f0477@google.com/ [2] https://github.com/lz4/lz4/commit/c5d6f8a8be3927c0bec91bcc58667a6cfad244ad# [3] https://lore.kernel.org/all/CC666AE8-4CA4-4951-B6FB-A2EFDE3AC03B@fb.com/

Severity ?

7.8 (High)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2022-49078"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-02-26T07:00:45Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nlz4: fix LZ4_decompress_safe_partial read out of bound\n\nWhen partialDecoding, it is EOF if we\u0027ve either filled the output buffer\nor can\u0027t proceed with reading an offset for following match.\n\nIn some extreme corner cases when compressed data is suitably corrupted,\nUAF will occur.  As reported by KASAN [1], LZ4_decompress_safe_partial\nmay lead to read out of bound problem during decoding.  lz4 upstream has\nfixed it [2] and this issue has been disscussed here [3] before.\n\ncurrent decompression routine was ported from lz4 v1.8.3, bumping\nlib/lz4 to v1.9.+ is certainly a huge work to be done later, so, we\u0027d\nbetter fix it first.\n\n[1] https://lore.kernel.org/all/000000000000830d1205cf7f0477@google.com/\n[2] https://github.com/lz4/lz4/commit/c5d6f8a8be3927c0bec91bcc58667a6cfad244ad#\n[3] https://lore.kernel.org/all/CC666AE8-4CA4-4951-B6FB-A2EFDE3AC03B@fb.com/",
  "id": "GHSA-jh3f-g934-rw77",
  "modified": "2025-02-27T18:31:08Z",
  "published": "2025-02-27T18:31:08Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-49078"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/467d5e200ab4486b744fe1776154a43d1aa22d4b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6adc01a7aa37445dafe8846faa0610a86029b253"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/73953dfa9d50e5c9fe98ee13fd1d3427aa12a0a3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9fb8bc6cfc58773ce95414e11c9ccc8fc6ac4927"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e64dbe97c05c769525cbca099ddbd22485630235"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/eafc0a02391b7b36617b36c97c4b5d6832cf5e24"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2022-49078 (GCVE-0-2022-49078)

Vulnerability from cvelistv5 – Published: 2025-02-26 01:54 – Updated: 2025-09-03 12:58

Title

lz4: fix LZ4_decompress_safe_partial read out of bound

Summary

In the Linux kernel, the following vulnerability has been resolved: lz4: fix LZ4_decompress_safe_partial read out of bound When partialDecoding, it is EOF if we've either filled the output buffer or can't proceed with reading an offset for following match. In some extreme corner cases when compressed data is suitably corrupted, UAF will occur. As reported by KASAN [1], LZ4_decompress_safe_partial may lead to read out of bound problem during decoding. lz4 upstream has fixed it [2] and this issue has been disscussed here [3] before. current decompression routine was ported from lz4 v1.8.3, bumping lib/lz4 to v1.9.+ is certainly a huge work to be done later, so, we'd better fix it first. [1] https://lore.kernel.org/all/000000000000830d1205cf7f0477@google.com/ [2] https://github.com/lz4/lz4/commit/c5d6f8a8be3927c0bec91bcc58667a6cfad244ad# [3] https://lore.kernel.org/all/CC666AE8-4CA4-4951-B6FB-A2EFDE3AC03B@fb.com/

Severity ?

7.8 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CWE

CWE-416 - Use After Free

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/73953dfa9d50e5c9f…
	https://git.kernel.org/stable/c/6adc01a7aa37445da…
	https://git.kernel.org/stable/c/9fb8bc6cfc58773ce…
	https://git.kernel.org/stable/c/e64dbe97c05c76952…
	https://git.kernel.org/stable/c/467d5e200ab4486b7…
	https://git.kernel.org/stable/c/eafc0a02391b7b366…

Impacted products

Vendor

Product

Version

Linux

Affected: 2209fda323e2fd2a2d0885595fd5097717f8d2aa , < 73953dfa9d50e5c9fe98ee13fd1d3427aa12a0a3 (git)
Affected: 2209fda323e2fd2a2d0885595fd5097717f8d2aa , < 6adc01a7aa37445dafe8846faa0610a86029b253 (git)
Affected: 2209fda323e2fd2a2d0885595fd5097717f8d2aa , < 9fb8bc6cfc58773ce95414e11c9ccc8fc6ac4927 (git)
Affected: 2209fda323e2fd2a2d0885595fd5097717f8d2aa , < e64dbe97c05c769525cbca099ddbd22485630235 (git)
Affected: 2209fda323e2fd2a2d0885595fd5097717f8d2aa , < 467d5e200ab4486b744fe1776154a43d1aa22d4b (git)
Affected: 2209fda323e2fd2a2d0885595fd5097717f8d2aa , < eafc0a02391b7b36617b36c97c4b5d6832cf5e24 (git)

Linux

Affected: 4.20
Unaffected: 0 , < 4.20 (semver)
Unaffected: 5.4.189 , ≤ 5.4.* (semver)
Unaffected: 5.10.111 , ≤ 5.10.* (semver)
Unaffected: 5.15.34 , ≤ 5.15.* (semver)
Unaffected: 5.16.20 , ≤ 5.16.* (semver)
Unaffected: 5.17.3 , ≤ 5.17.* (semver)
Unaffected: 5.18 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "LOCAL",
              "availabilityImpact": "HIGH",
              "baseScore": 7.8,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2022-49078",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-02-27T17:59:16.973304Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-416",
                "description": "CWE-416 Use After Free",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-02-27T18:02:29.956Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "lib/lz4/lz4_decompress.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "73953dfa9d50e5c9fe98ee13fd1d3427aa12a0a3",
              "status": "affected",
              "version": "2209fda323e2fd2a2d0885595fd5097717f8d2aa",
              "versionType": "git"
            },
            {
              "lessThan": "6adc01a7aa37445dafe8846faa0610a86029b253",
              "status": "affected",
              "version": "2209fda323e2fd2a2d0885595fd5097717f8d2aa",
              "versionType": "git"
            },
            {
              "lessThan": "9fb8bc6cfc58773ce95414e11c9ccc8fc6ac4927",
              "status": "affected",
              "version": "2209fda323e2fd2a2d0885595fd5097717f8d2aa",
              "versionType": "git"
            },
            {
              "lessThan": "e64dbe97c05c769525cbca099ddbd22485630235",
              "status": "affected",
              "version": "2209fda323e2fd2a2d0885595fd5097717f8d2aa",
              "versionType": "git"
            },
            {
              "lessThan": "467d5e200ab4486b744fe1776154a43d1aa22d4b",
              "status": "affected",
              "version": "2209fda323e2fd2a2d0885595fd5097717f8d2aa",
              "versionType": "git"
            },
            {
              "lessThan": "eafc0a02391b7b36617b36c97c4b5d6832cf5e24",
              "status": "affected",
              "version": "2209fda323e2fd2a2d0885595fd5097717f8d2aa",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "lib/lz4/lz4_decompress.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.20"
            },
            {
              "lessThan": "4.20",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.189",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.111",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.34",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.16.*",
              "status": "unaffected",
              "version": "5.16.20",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.17.*",
              "status": "unaffected",
              "version": "5.17.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "5.18",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.4.189",
                  "versionStartIncluding": "4.20",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.111",
                  "versionStartIncluding": "4.20",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.34",
                  "versionStartIncluding": "4.20",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.16.20",
                  "versionStartIncluding": "4.20",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.17.3",
                  "versionStartIncluding": "4.20",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.18",
                  "versionStartIncluding": "4.20",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nlz4: fix LZ4_decompress_safe_partial read out of bound\n\nWhen partialDecoding, it is EOF if we\u0027ve either filled the output buffer\nor can\u0027t proceed with reading an offset for following match.\n\nIn some extreme corner cases when compressed data is suitably corrupted,\nUAF will occur.  As reported by KASAN [1], LZ4_decompress_safe_partial\nmay lead to read out of bound problem during decoding.  lz4 upstream has\nfixed it [2] and this issue has been disscussed here [3] before.\n\ncurrent decompression routine was ported from lz4 v1.8.3, bumping\nlib/lz4 to v1.9.+ is certainly a huge work to be done later, so, we\u0027d\nbetter fix it first.\n\n[1] https://lore.kernel.org/all/000000000000830d1205cf7f0477@google.com/\n[2] https://github.com/lz4/lz4/commit/c5d6f8a8be3927c0bec91bcc58667a6cfad244ad#\n[3] https://lore.kernel.org/all/CC666AE8-4CA4-4951-B6FB-A2EFDE3AC03B@fb.com/"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-09-03T12:58:36.144Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/73953dfa9d50e5c9fe98ee13fd1d3427aa12a0a3"
        },
        {
          "url": "https://git.kernel.org/stable/c/6adc01a7aa37445dafe8846faa0610a86029b253"
        },
        {
          "url": "https://git.kernel.org/stable/c/9fb8bc6cfc58773ce95414e11c9ccc8fc6ac4927"
        },
        {
          "url": "https://git.kernel.org/stable/c/e64dbe97c05c769525cbca099ddbd22485630235"
        },
        {
          "url": "https://git.kernel.org/stable/c/467d5e200ab4486b744fe1776154a43d1aa22d4b"
        },
        {
          "url": "https://git.kernel.org/stable/c/eafc0a02391b7b36617b36c97c4b5d6832cf5e24"
        }
      ],
      "title": "lz4: fix LZ4_decompress_safe_partial read out of bound",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-49078",
    "datePublished": "2025-02-26T01:54:40.207Z",
    "dateReserved": "2025-02-26T01:49:39.247Z",
    "dateUpdated": "2025-09-03T12:58:36.144Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

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.

Action not permitted

GHSA-JH3F-G934-RW77

CVE-2022-49078 (GCVE-0-2022-49078)

Tags

Sightings

Nomenclature