Vulnerability-Lookup

GHSA-9WFM-Q59X-QC3X

Vulnerability from github – Published: 2022-05-24 19:04 – Updated: 2022-05-24 19:04

Details

The eBPF ALU32 bounds tracking for bitwise ops (AND, OR and XOR) in the Linux kernel did not properly update 32-bit bounds, which could be turned into out of bounds reads and writes in the Linux kernel and therefore, arbitrary code execution. This issue was fixed via commit 049c4e13714e ("bpf: Fix alu32 const subreg bound tracking on bitwise operations") (v5.13-rc4) and backported to the stable kernels in v5.12.4, v5.11.21, and v5.10.37. The AND/OR issues were introduced by commit 3f50f132d840 ("bpf: Verifier, do explicit ALU32 bounds tracking") (5.7-rc1) and the XOR variant was introduced by 2921c90d4718 ("bpf:Fix a verifier failure with xor") ( 5.10-rc1).

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  "affected": [],
  "aliases": [
    "CVE-2021-3490"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-125"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-06-04T02:15:00Z",
    "severity": "HIGH"
  },
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  "id": "GHSA-9wfm-q59x-qc3x",
  "modified": "2022-05-24T19:04:07Z",
  "published": "2022-05-24T19:04:07Z",
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      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-3490"
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      "type": "WEB",
      "url": "https://security.netapp.com/advisory/ntap-20210716-0004"
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      "url": "https://ubuntu.com/security/notices/USN-4949-1"
    },
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CVE-2021-3490 (GCVE-0-2021-3490)

Vulnerability from cvelistv5 – Published: 2021-06-04 01:40 – Updated: 2024-09-16 22:29

Title

Linux kernel eBPF bitwise ops ALU32 bounds tracking

Summary

Severity

7.8 (High)


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

CWE

CWE-787 - Out-of-bounds Write
CWE-20 - Improper Input Validation

Assigner

canonical CNA under the mitre root

CNA scorecard B 82/100 over 58 records in the last 180 days details

References

7 references

URL	Tags
https://ubuntu.com/security/notices/USN-4950-1	vendor-advisoryx_refsource_UBUNTU
https://ubuntu.com/security/notices/USN-4949-1	vendor-advisoryx_refsource_UBUNTU
https://www.openwall.com/lists/oss-security/2021/…	mailing-listx_refsource_MLIST
https://git.kernel.org/pub/scm/linux/kernel/git/b…	x_refsource_MISC
https://www.zerodayinitiative.com/advisories/ZDI-…	x_refsource_MISC
https://security.netapp.com/advisory/ntap-2021071…	x_refsource_CONFIRM
http://packetstormsecurity.com/files/164015/Linux…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
Linux	Linux kernel	Affected: trunk , < v5.13-rc4 (custom) Affected: linux-5.12.y , < v5.12.4 (custom) Affected: linux-5.11.y , < v5.11.21 (custom) Affected: linux-5.10.y , < v5.10.37 (custom) Affected: v5.7-rc1 , < 5.7* (custom)

Date Public

2021-05-11 00:00

Credits

Manfred Paul (@_manfp) of the RedRocket CTF team (@redrocket_ctf) working with Trend Micro's Zero Day Initiative

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.

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