CVE-2022-3636 (GCVE-0-2022-3636)

Vulnerability from cvelistv5 – Published: 2022-10-21 00:00 – Updated: 2026-07-28 16:51 X_Open Source
VLAI
Title
Linux Kernel Ethernet mtk_ppe.c __mtk_ppe_check_skb use after free
Summary
A vulnerability was identified in Linux Kernel 33fc42de33278b2b3ec6f3390512987bc29a62b7. This affects the function __mtk_ppe_check_skb of the file drivers/net/ethernet/mediatek/mtk_ppe.c of the component Ethernet Handler. Such manipulation leads to use after free. The name of the patch is 17a5f6a78dc7b8db385de346092d7d9f9dc24df6. It is best practice to apply a patch to resolve this issue. No released Linux Kernel version was ever affected by this CVE.
Severity
5.1 (Medium)
CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X
5.5 (Medium)
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:X/RL:O/RC:C
5.5 (Medium)
CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:X/RL:O/RC:C
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
Impacted products
Vendor Product Version
Linux Kernel Affected: 33fc42de33278b2b3ec6f3390512987bc29a62b7
    cpe:2.3:o:linux:kernel:*:*:*:*:*:*:*:*
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      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://git.kernel.org/pub/scm/linux/kernel/git/pabeni/net-next.git/commit/?id=17a5f6a78dc7b8db385de346092d7d9f9dc24df6\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://vuldb.com/?id.211935\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://www.debian.org/security/2023/dsa-5333\", \"name\": \"DSA-5333\", \"tags\": [\"vendor-advisory\", \"x_transferred\"]}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-03T01:14:03.212Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2022-3636\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2025-04-14T17:07:51.608381Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2025-04-14T17:07:53.168Z\"}}], \"cna\": {\"tags\": [\"x_open-source\"], \"title\": \"Linux Kernel Ethernet mtk_ppe.c __mtk_ppe_check_skb use after free\", \"metrics\": [{\"cvssV4_0\": {\"version\": \"4.0\", \"baseScore\": 5.1, \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X\"}}, {\"cvssV3_1\": {\"version\": \"3.1\", \"baseScore\": 5.5, \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:X/RL:O/RC:C\"}}, {\"cvssV3_0\": {\"version\": \"3.0\", \"baseScore\": 5.5, \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:X/RL:O/RC:C\"}}, {\"cvssV2_0\": {\"version\": \"2.0\", \"baseScore\": 4.9, \"vectorString\": \"AV:A/AC:M/Au:S/C:P/I:P/A:P/E:ND/RL:OF/RC:C\"}}], \"affected\": [{\"cpes\": [\"cpe:2.3:o:linux:kernel:*:*:*:*:*:*:*:*\"], \"vendor\": \"Linux\", \"modules\": [\"Ethernet Handler\"], \"product\": \"Kernel\", \"versions\": [{\"status\": \"affected\", \"version\": \"33fc42de33278b2b3ec6f3390512987bc29a62b7\"}]}], \"timeline\": [{\"lang\": \"en\", \"time\": \"2022-10-21T00:00:00.000Z\", \"value\": \"Advisory disclosed\"}, {\"lang\": \"en\", \"time\": \"2022-10-21T00:00:00.000Z\", \"value\": \"CVE reserved\"}, {\"lang\": \"en\", \"time\": \"2022-10-21T02:00:00.000Z\", \"value\": \"VulDB entry created\"}, {\"lang\": \"en\", \"time\": \"2026-07-28T18:56:36.000Z\", \"value\": \"VulDB entry last update\"}], \"references\": [{\"url\": \"https://vuldb.com/vuln/211935\", \"name\": \"VDB-211935 | Linux Kernel Ethernet mtk_ppe.c __mtk_ppe_check_skb use after free\", \"tags\": [\"vdb-entry\", \"technical-description\"]}, {\"url\": \"https://vuldb.com/vuln/211935/cti\", \"name\": \"VDB-211935 | CTI Indicators (IOB, IOC, IOA)\", \"tags\": [\"signature\", \"permissions-required\"]}, {\"url\": \"https://vuldb.com/cve/CVE-2022-3636\", \"name\": \"CVE-2022-3636 | CVE Analysis and Report\", \"tags\": [\"third-party-advisory\"]}, {\"url\": \"https://git.kernel.org/pub/scm/linux/kernel/git/pabeni/net-next.git/commit/?id=17a5f6a78dc7b8db385de346092d7d9f9dc24df6\", \"tags\": [\"patch\"]}, {\"url\": \"https://www.kernel.org/\", \"tags\": [\"product\"]}], \"x_generator\": [\"VulDB PVTS v202607\"], \"descriptions\": [{\"lang\": \"en\", \"value\": \"A vulnerability was identified in Linux Kernel 33fc42de33278b2b3ec6f3390512987bc29a62b7. This affects the function __mtk_ppe_check_skb of the file drivers/net/ethernet/mediatek/mtk_ppe.c of the component Ethernet Handler. Such manipulation leads to use after free. The name of the patch is 17a5f6a78dc7b8db385de346092d7d9f9dc24df6. It is best practice to apply a patch to resolve this issue. No released Linux Kernel version was ever affected by this CVE.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-416\", \"description\": \"Use After Free\"}]}, {\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-119\", \"description\": \"Memory Corruption\"}]}], \"providerMetadata\": {\"orgId\": \"1af790b2-7ee1-4545-860a-a788eba489b5\", \"shortName\": \"VulDB\", \"dateUpdated\": \"2026-07-28T16:51:44.501Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2022-3636\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-07-28T16:51:44.501Z\", \"dateReserved\": \"2022-10-21T00:00:00.000Z\", \"assignerOrgId\": \"1af790b2-7ee1-4545-860a-a788eba489b5\", \"datePublished\": \"2022-10-21T00:00:00.000Z\", \"assignerShortName\": \"VulDB\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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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.