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[email protected]CVE-2021-20314

HistoryAug 12, 2021 - 3:15 p.m.

CVE-2021-20314

2021-08-1215:15:07

CWE-787

[email protected]

web.nvd.nist.gov

133

cve-2021-20314

stack buffer overflow

libspf2

dos

code execution

spf macros

nvd

7.5 High

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:P/I:P/A:P

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

9.6 High

AI Score

Confidence

High

0.003 Low

EPSS

Percentile

70.9%

JSON

Stack buffer overflow in libspf2 versions below 1.2.11 when processing certain SPF macros can lead to Denial of service and potentially code execution via malicious crafted SPF explanation messages.

Affected configurations

Vulners

NVD

Node

libspf2libspf2Range≤1.2.11

VendorProductVersionCPE
libspf2libspf2*cpe:2.3:a:libspf2:libspf2:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
libspf2	libspf2	*	cpe:2.3:a:libspf2:libspf2::::::::

CNA Affected

[
  {
    "product": "libspf2",
    "vendor": "n/a",
    "versions": [
      {
        "status": "affected",
        "version": "1.2.11"
      }
    ]
  }
]