Vulnerability-Lookup

OESA-2021-1279 (CVE-2021-3587)

Vulnerability from osv_openeuler – Published: 2021-07-24 11:04 – Updated: 2026-08-06 11:04 – Source website

Summary

kernel security update

Details

The Linux Kernel, the operating system core itself.

Security Fix(es):

there was a null pointer dereference in llcp_sock_getname in net/nfc/llcp_sock.c and reproduced it in linux-5.13.0-rc2. An unprivileged user can trigger this bug and cause denial of service. #Root Cause After creating an nfc socket, bind the address by calling bind(), if LLCP_SAP_MAX was used as SAP, it cause the bind() failed and there would set llcp_sock->service_name as NULL. Although bind() returns an error here, it does not affect calling other socket functions. sock_getname() would invoke llcp_sock_getname(), llcp_sock_getname copied service name from llcp_sock->service_name by memcpy but llcp_sock->service_name is NULL. #Fix the patch for this issue: https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=4ac06a1e013c(CVE-2021-3587)

An issue was discovered in the Linux kernel before 5.10. drivers/infiniband/core/ucma.c has a use-after-free because the ctx is reached via the ctx_list in some ucma_migrate_id situations where ucma_close is called, aka CID-f5449e74802c.(CVE-2020-36385)

The vgacon subsystem in the Linux kernel before 5.8.10 mishandles software scrollback. There is a vgacon_scrolldelta out-of-bounds read, aka CID-973c096f6a85.(CVE-2020-28097)

In kernel/bpf/verifier.c in the Linux kernel before 5.12.13, a branch can be mispredicted (e.g., because of type confusion) and consequently an unprivileged BPF program can read arbitrary memory locations via a side-channel attack, aka CID-9183671af6db.(CVE-2021-33624)

kernel/module.c in the Linux kernel before 5.12.14 mishandles Signature Verification, aka CID-0c18f29aae7c. Without CONFIG_MODULE_SIG, verification that a kernel module is signed, for loading via init_module, does not occur for a module.sig_enforce=1 command-line argument.(CVE-2021-35039)

A heap out-of-bounds write affecting Linux since v2.6.19-rc1 was discovered in net/netfilter/x_tables.c. This allows an attacker to gain privileges or cause a DoS (via heap memory corruption) through user name space(CVE-2021-22555)

A flaw use-after-free in function hci_sock_bound_ioctl() of the Linux kernel HCI subsystem was found in the way user detaches bluetooth dongle or other way triggers unregister bluetooth device event. A local user could use this flaw to crash the system or escalate their privileges on the system.(CVE-2021-3573)

Improper access control in BlueZ may allow an authenticated user to potentially enable information disclosure via adjacent access.(CVE-2021-0129)

net/can/bcm.c in the Linux kernel through 5.12.10 allows local users to obtain sensitive information from kernel stack memory because parts of a data structure are uninitialized.(CVE-2021-34693)

An issue was discovered in the Linux kernel before 5.8.2. fs/io_uring.c has a use-after-free related to io_async_task_func and ctx reference holding, aka CID-6d816e088c35.(CVE-2020-36387)

A flaw was found in the CAN BCM networking protocol in the Linux kernel, where a local attacker can abuse a flaw in the CAN subsystem to corrupt memory, crash the system or escalate privileges.(CVE-2021-3609)

It was discovered that the eBPF implementation in the Linux kernel did not properly track bounds information for 32 bit registers when performing div and mod operations. A local attacker could use this to possibly execute arbitrary code.(CVE-2021-3600)

Severity

7.8 (High)


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

References

URL

Type

	https://openeuler.org/en/security/safety-bulletin…	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2021-3587	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2020-36385	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2020-28097	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2021-33624	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2021-35039	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2021-22555	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2021-3573	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2021-0129	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2021-34693	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2020-36387	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2021-3609	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2021-3600	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "aarch64": [
          "kernel-devel-4.19.90-2107.4.0.0097.oe1.aarch64.rpm",
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      },
      "package": {
        "ecosystem": "openEuler:20.03-LTS-SP1",
        "name": "kernel",
        "purl": "pkg:rpm/openEuler/kernel\u0026distro=openEuler-20.03-LTS-SP1"
      },
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              "introduced": "0"
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          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "ecosystem_specific": {
        "aarch64": [
          "kernel-devel-4.19.90-2107.4.0.0097.oe1.aarch64.rpm",
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          "python2-perf-debuginfo-4.19.90-2107.4.0.0097.oe1.aarch64.rpm",
          "kernel-tools-debuginfo-4.19.90-2107.4.0.0097.oe1.aarch64.rpm"
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          "kernel-4.19.90-2107.4.0.0097.oe1.src.rpm"
        ],
        "x86_64": [
          "perf-debuginfo-4.19.90-2107.4.0.0097.oe1.x86_64.rpm",
          "python3-perf-4.19.90-2107.4.0.0097.oe1.x86_64.rpm",
          "python2-perf-4.19.90-2107.4.0.0097.oe1.x86_64.rpm",
          "bpftool-4.19.90-2107.4.0.0097.oe1.x86_64.rpm",
          "kernel-tools-devel-4.19.90-2107.4.0.0097.oe1.x86_64.rpm",
          "kernel-devel-4.19.90-2107.4.0.0097.oe1.x86_64.rpm",
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        ]
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      "package": {
        "ecosystem": "openEuler:20.03-LTS-SP2",
        "name": "kernel",
        "purl": "pkg:rpm/openEuler/kernel\u0026distro=openEuler-20.03-LTS-SP2"
      },
      "ranges": [
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          "events": [
            {
              "introduced": "0"
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            {
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            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "severity": "High"
  },
  "details": "The Linux Kernel, the operating system core itself.\r\n\r\nSecurity Fix(es):\r\n\r\nthere was a null pointer dereference in llcp_sock_getname in net/nfc/llcp_sock.c and reproduced it in linux-5.13.0-rc2. An unprivileged user can trigger this bug and cause denial of service.  #Root Cause After creating an nfc socket, bind the address by calling bind(), if LLCP_SAP_MAX was used as SAP, it cause the bind() failed and there would set llcp_sock-\u0026gt;service_name  as NULL.  Although bind() returns an error here, it does not affect calling other socket functions. sock_getname() would invoke llcp_sock_getname(), llcp_sock_getname copied service  name from llcp_sock-\u0026gt;service_name by memcpy but llcp_sock-\u0026gt;service_name is NULL.  #Fix the patch for this issue: https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=4ac06a1e013c(CVE-2021-3587)\r\n\r\nAn issue was discovered in the Linux kernel before 5.10. drivers/infiniband/core/ucma.c has a use-after-free because the ctx is reached via the ctx_list in some ucma_migrate_id situations where ucma_close is called, aka CID-f5449e74802c.(CVE-2020-36385)\r\n\r\nThe vgacon subsystem in the Linux kernel before 5.8.10 mishandles software scrollback. There is a vgacon_scrolldelta out-of-bounds read, aka CID-973c096f6a85.(CVE-2020-28097)\r\n\r\nIn kernel/bpf/verifier.c in the Linux kernel before 5.12.13, a branch can be mispredicted (e.g., because of type confusion) and consequently an unprivileged BPF program can read arbitrary memory locations via a side-channel attack, aka CID-9183671af6db.(CVE-2021-33624)\r\n\r\nkernel/module.c in the Linux kernel before 5.12.14 mishandles Signature Verification, aka CID-0c18f29aae7c. Without CONFIG_MODULE_SIG, verification that a kernel module is signed, for loading via init_module, does not occur for a module.sig_enforce=1 command-line argument.(CVE-2021-35039)\r\n\r\nA heap out-of-bounds write affecting Linux since v2.6.19-rc1 was discovered in net/netfilter/x_tables.c. This allows an attacker to gain privileges or cause a DoS (via heap memory corruption) through user name space(CVE-2021-22555)\r\n\r\nA flaw use-after-free in function hci_sock_bound_ioctl() of the Linux kernel HCI subsystem was found in the way user detaches bluetooth dongle or other way triggers unregister bluetooth device event. A local user could use this flaw to crash the system or escalate their privileges on the system.(CVE-2021-3573)\r\n\r\nImproper access control in BlueZ may allow an authenticated user to potentially enable information disclosure via adjacent access.(CVE-2021-0129)\r\n\r\nnet/can/bcm.c in the Linux kernel through 5.12.10 allows local users to obtain sensitive information from kernel stack memory because parts of a data structure are uninitialized.(CVE-2021-34693)\r\n\r\nAn issue was discovered in the Linux kernel before 5.8.2. fs/io_uring.c has a use-after-free related to io_async_task_func and ctx reference holding, aka CID-6d816e088c35.(CVE-2020-36387)\r\n\r\nA flaw was found in the CAN BCM networking protocol in the Linux kernel, where a local attacker can abuse a flaw in the CAN subsystem to corrupt memory, crash the system or escalate privileges.(CVE-2021-3609)\r\n\r\nIt was discovered that the eBPF implementation in the Linux kernel did not properly track bounds information for 32 bit registers when performing div and mod operations. A local attacker could use this to possibly execute arbitrary code.(CVE-2021-3600)",
  "id": "OESA-2021-1279",
  "modified": "2026-08-06T11:04:31Z",
  "published": "2021-07-24T11:04:31Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2021-1279"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-3587"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-36385"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-28097"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-33624"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-35039"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-22555"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-3573"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-0129"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-34693"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-36387"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-3609"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-3600"
    }
  ],
  "schema_version": "1.7.2",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "kernel security update",
  "upstream": [
    "CVE-2021-3587",
    "CVE-2020-36385",
    "CVE-2020-28097",
    "CVE-2021-33624",
    "CVE-2021-35039",
    "CVE-2021-22555",
    "CVE-2021-3573",
    "CVE-2021-0129",
    "CVE-2021-34693",
    "CVE-2020-36387",
    "CVE-2021-3609",
    "CVE-2021-3600"
  ]
}

CVE-2021-3600 (GCVE-0-2021-3600)

Vulnerability from cvelistv5 – Published: 2024-01-08 18:16 – Updated: 2024-09-04 15:38

Summary

Severity

7.8 (High)


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

7.8 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-03-13 19:37 UTC

CWE

CWE-125 - Out-of-bounds Read
CWE-787 - Out-of-bounds Write

Assigner

canonical CNA under the mitre root

CNA scorecard B 82/100 over 62 records in the last 180 days details

References

3 references

URL	Tags
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CV…	issue-tracking
https://ubuntu.com/security/notices/USN-5003-1	third-party-advisory
https://git.kernel.org/linus/e88b2c6e5a4d9ce30d75…	issue-tracking

Impacted products

1 product

Vendor	Product	Version
The Linux Kernel Organization	linux	Affected: 0 , < 5.11 (semver)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T17:01:07.551Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "issue-tracking",
              "x_transferred"
            ],
            "url": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3600"
          },
          {
            "tags": [
              "third-party-advisory",
              "x_transferred"
            ],
            "url": "https://ubuntu.com/security/notices/USN-5003-1"
          },
          {
            "tags": [
              "issue-tracking",
              "x_transferred"
            ],
            "url": "https://git.kernel.org/linus/e88b2c6e5a4d9ce30d75391e4d950da74bb2bd90"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "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-2021-3600",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-03-13T19:37:54.684327Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-125",
                "description": "CWE-125 Out-of-bounds Read",
                "lang": "en",
                "type": "CWE"
              }
            ]
          },
          {
            "descriptions": [
              {
                "cweId": "CWE-787",
                "description": "CWE-787 Out-of-bounds Write",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-09-04T15:38:28.022Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "packageName": "linux",
          "platforms": [
            "Linux"
          ],
          "product": "linux",
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git",
          "vendor": "The Linux Kernel Organization",
          "versions": [
            {
              "lessThan": "5.11",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "It was discovered that the eBPF implementation in the Linux kernel did not properly track bounds information for 32 bit registers when performing div and mod operations. A local attacker could use this to possibly execute arbitrary code."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
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CVE-2021-3609 (GCVE-0-2021-3609)

Vulnerability from cvelistv5 – Published: 2022-03-03 18:24 – Updated: 2024-08-03 17:01

Summary

.A flaw was found in the CAN BCM networking protocol in the Linux kernel, where a local attacker can abuse a flaw in the CAN subsystem to corrupt memory, crash the system or escalate privileges. This race condition in net/can/bcm.c in the Linux kernel allows for local privilege escalation to root.

Severity

No CVSS data available.

CWE

CWE-362 - - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Assigner

redhat CNA under the redhat root

CNA scorecard B 82/100 over 1184 records in the last 180 days details

References

5 references

URL	Tags
https://bugzilla.redhat.com/show_bug.cgi?id=1971651	x_refsource_MISC
https://www.openwall.com/lists/oss-security/2021/…	x_refsource_MISC
https://github.com/nrb547/kernel-exploitation/blo…	x_refsource_MISC
https://github.com/torvalds/linux/commit/d5f9023f…	x_refsource_MISC
https://security.netapp.com/advisory/ntap-2022041…	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
n/a	kernel	Affected: Affects kernel v2.6.25 to v5.13-rc6

Show details on NVD website

JSON

To clipboard

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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.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

Order JSON

How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

Publication & reservation Sightings KEV catalogs Other timestamps

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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.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

OESA-2021-1279 (CVE-2021-3587)

CVE-2021-3600 (GCVE-0-2021-3600)

CVE-2021-3609 (GCVE-0-2021-3609)

Tags

Sightings

Nomenclature

Vulnerability timeline

Related by attack behaviour