CVE-2020-8252

HIGH

7.8

CVSS Score

Published: September 18, 2020 at 08:11 PM UTC

Updated: June 17, 2026 at 03:26 AM UTC

3 products affected across 3 vendorsFedoraLeapNode.js

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Severity

HIGH7.8

Exploit prediction

EPSS 0.7%

Description

The implementation of realpath in libuv < 10.22.1, < 12.18.4, and < 14.9.0 used within Node.js incorrectly determined the buffer size which can result in a buffer overflow if the resolved path is longer than 256 bytes.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Fedora · Fedora Projectrpm

95%

Node.js · Node.js

95%

10.0 ≤ v < 10.22.110.0.0 ≤ v < 10.22.111.0 ≤ v < 11.*12.0 ≤ v < 12.18.412.0.0 ≤ v < 12.18.413.0 ≤ v < 13.*14.0 ≤ v < 14.9.014.0.0 ≤ v < 14.9.04.0 ≤ v < 4.*5.0 ≤ v < 5.*6.0 ≤ v < 6.*7.0 ≤ v < 7.*8.0 ≤ v < 8.*9.0 ≤ v < 9.*10.0 11.0 12.0 13.0 14.0 4.0 5.0 6.0 7.0 8.0 9.0

Affected range stops below 10.22.1, so it looks safe — our inference, not a vendor statement

Affected range stops below 11.*, so it looks safe — our inference, not a vendor statement

Affected range stops below 12.18.4, so it looks safe — our inference, not a vendor statement

Affected range stops below 13.*, so it looks safe — our inference, not a vendor statement

Affected range stops below 14.9.0, so it looks safe — our inference, not a vendor statement

Affected range stops below 4.*, so it looks safe — our inference, not a vendor statement

Affected range stops below 5.*, so it looks safe — our inference, not a vendor statement

Affected range stops below 6.*, so it looks safe — our inference, not a vendor statement

Affected range stops below 7.*, so it looks safe — our inference, not a vendor statement

Affected range stops below 8.*, so it looks safe — our inference, not a vendor statement

Affected range stops below 9.*, so it looks safe — our inference, not a vendor statement

Leap · openSUSEdrupal

95%

15.2

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (8)

Vendor Advisoryx_refsource_SUSEThird Party Advisory

Source: [email protected]

http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00011.html

Vendor Advisoryx_refsource_SUSEMailing ListThird Party Advisory

Source: [email protected]

http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00023.html

x_refsource_MISCPermissions RequiredThird Party Advisory

Source: [email protected]

https://hackerone.com/reports/965914

Vendor Advisoryx_refsource_FEDORA

Source: [email protected]

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4OOYAMJVLLCLXDTHW3V5UXNULZBBK4O6/

x_refsource_MISCVendor Advisory

Source: [email protected]

https://nodejs.org/en/blog/vulnerability/september-2020-security-releases/

Vendor Advisoryx_refsource_GENTOOThird Party Advisory

Source: [email protected]

https://security.gentoo.org/glsa/202009-15

x_refsource_CONFIRMThird Party Advisory

Source: [email protected]

https://security.netapp.com/advisory/ntap-20201009-0004/

Vendor Advisoryx_refsource_UBUNTUThird Party Advisory

Source: [email protected]

https://usn.ubuntu.com/4548-1/

CVSS

7.8HIGH[email protected]

Attack Vector: LOCAL
Complexity: LOW
Privileges: LOW
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: HIGH
Integrity: HIGH
Availability: HIGH

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-120

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