Ubuntu.comUB:CVE-2020-8252CVE-2020-8252
7.8 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
4.6 Medium
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:L/AC:L/Au:N/C:P/I:P/A:P
0.001 Low
EPSS
Percentile
17.6%
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.
Bugs
Notes
| Author | Note |
|---|---|
| sbeattie | nodejs uses system libuv1 library |
| mdeslaur | introduced in 1.24.0 |
References
hackerone.com/reports/965914
launchpad.net/bugs/cve/CVE-2020-8252
nodejs.org/en/blog/vulnerability/september-2020-security-releases/
nodejs.org/en/blog/vulnerability/september-2020-security-releases/#fs-realpath-native-on-may-cause-buffer-overflow-medium-cve-2020-8252
nvd.nist.gov/vuln/detail/CVE-2020-8252
security-tracker.debian.org/tracker/CVE-2020-8252
ubuntu.com/security/notices/USN-4548-1
www.cve.org/CVERecord?id=CVE-2020-8252
Related
7.8 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
4.6 Medium
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:L/AC:L/Au:N/C:P/I:P/A:P
0.001 Low
EPSS
Percentile
17.6%