CVE-2022-49078 (GCVE-0-2022-49078)
Vulnerability from cvelistv5
Published
2025-02-26 01:54
Modified
2025-09-03 12:58
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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/
References
Impacted products
Vendor Product Version
Linux Linux Version: 2209fda323e2fd2a2d0885595fd5097717f8d2aa
Version: 2209fda323e2fd2a2d0885595fd5097717f8d2aa
Version: 2209fda323e2fd2a2d0885595fd5097717f8d2aa
Version: 2209fda323e2fd2a2d0885595fd5097717f8d2aa
Version: 2209fda323e2fd2a2d0885595fd5097717f8d2aa
Version: 2209fda323e2fd2a2d0885595fd5097717f8d2aa
 Create a notification for this product.
Show details on NVD website

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",
  "vulnerability-lookup:meta": {
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 7.8, \"attackVector\": \"LOCAL\", \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\", \"integrityImpact\": \"HIGH\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"LOW\", \"confidentialityImpact\": \"HIGH\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2022-49078\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2025-02-27T17:59:16.973304Z\"}}}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-416\", \"description\": \"CWE-416 Use After Free\"}]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2025-02-27T17:59:18.272Z\"}}], \"cna\": {\"title\": \"lz4: fix LZ4_decompress_safe_partial read out of bound\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"2209fda323e2fd2a2d0885595fd5097717f8d2aa\", \"lessThan\": \"73953dfa9d50e5c9fe98ee13fd1d3427aa12a0a3\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"2209fda323e2fd2a2d0885595fd5097717f8d2aa\", \"lessThan\": \"6adc01a7aa37445dafe8846faa0610a86029b253\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"2209fda323e2fd2a2d0885595fd5097717f8d2aa\", \"lessThan\": \"9fb8bc6cfc58773ce95414e11c9ccc8fc6ac4927\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"2209fda323e2fd2a2d0885595fd5097717f8d2aa\", \"lessThan\": \"e64dbe97c05c769525cbca099ddbd22485630235\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"2209fda323e2fd2a2d0885595fd5097717f8d2aa\", \"lessThan\": \"467d5e200ab4486b744fe1776154a43d1aa22d4b\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"2209fda323e2fd2a2d0885595fd5097717f8d2aa\", \"lessThan\": \"eafc0a02391b7b36617b36c97c4b5d6832cf5e24\", \"versionType\": \"git\"}], \"programFiles\": [\"lib/lz4/lz4_decompress.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"4.20\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"4.20\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"5.4.189\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.4.*\"}, {\"status\": \"unaffected\", \"version\": \"5.10.111\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.34\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"5.16.20\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.16.*\"}, {\"status\": \"unaffected\", \"version\": \"5.17.3\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.17.*\"}, {\"status\": \"unaffected\", \"version\": \"5.18\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"lib/lz4/lz4_decompress.c\"], \"defaultStatus\": \"affected\"}], \"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\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"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/\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.189\", \"versionStartIncluding\": \"4.20\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.111\", \"versionStartIncluding\": \"4.20\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.34\", \"versionStartIncluding\": \"4.20\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.16.20\", \"versionStartIncluding\": \"4.20\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.17.3\", \"versionStartIncluding\": \"4.20\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.18\", \"versionStartIncluding\": \"4.20\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-09-03T12:58:36.144Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2022-49078\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-09-03T12:58:36.144Z\", \"dateReserved\": \"2025-02-26T01:49:39.247Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2025-02-26T01:54:40.207Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.