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ZephyrCVELIST:CVE-2021-3323

HistoryOct 12, 2021 - 9:50 p.m.

CVE-2021-3323 Integer Underflow in 6LoWPAN IPHC Header Uncompression in Zephyr

2021-10-1221:50:16

CWE-191

zephyr

www.cve.org

cve-2021-3323 6lowpan iphc header zephyr cwe-191 integer underflow ghsa-89j6-qpxf-pfpc

CVSS3

8.3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

LOW

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

AI Score

9.7

Confidence

High

EPSS

0.004

Percentile

75.0%

JSON

Integer Underflow in 6LoWPAN IPHC Header Uncompression in Zephyr. Zephyr versions >= >=2.4.0 contain Integer Underflow (Wrap or Wraparound) (CWE-191). For more information, see https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-89j6-qpxf-pfpc

CNA Affected

[
  {
    "product": "zephyr",
    "vendor": "zephyrproject-rtos",
    "versions": [
      {
        "lessThan": "unspecified",
        "status": "affected",
        "version": ">=2.4.0",
        "versionType": "custom"
      }
    ]
  }
]

References

github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-89j6-qpxf-pfpc

CVSS3

8.3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

LOW

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

AI Score

9.7

Confidence

High

EPSS

0.004

Percentile

75.0%

JSON

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