CVE-2020-8252 — Vulnetix

CVE-2020-8252 PUBLISHED CVSS 9.300000190734863 CRITICAL

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.

EPSS 0.18% · 39.5th percentile

Risk Scores

CVSS 4.0

9.300000190734863

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

EPSS Score

0.18%

39.5th percentile

Affected Products

Vendor	Product	Versions
Bitnami	node	10.0.0, 12.0.0, 10.0.0
Bitnami	node-min	14.0.0, 12.0.0, 12.0.0
Bitnami	node-min	12.0.0, 14.0.0, 10.0.0
Bitnami	node	12.0.0, 10.0.0, 14.0.0

Exploit Intelligence

`fs.realpath.native` on darwin may cause buffer overflow (hackerone)
`fs.realpath.native` on darwin may cause buffer overflow (hackerone)
`fs.realpath.native` on darwin may cause buffer overflow (hackerone)
https://nodejs.org/en/blog/vulnerability/september-2020-security-releases/ (circl)
GLSA-202009-15 (circl)
USN-4548-1 (circl)
openSUSE-SU-2020:1616 (circl)
https://security.netapp.com/advisory/ntap-20201009-0004/ (circl)
openSUSE-SU-2020:1660 (circl)
FEDORA-2020-43d5a372fc (circl)

…and 1 more exploits

Timeline

CVE Published
Oct 17, 2020 PoC Published
Apr 14, 2021 EPSS Score
Jun 23, 2021 EPSS Score
Aug 24, 2021 EPSS Score
Dec 27, 2021 EPSS Score
Jan 6, 2022 EPSS Score
Feb 4, 2022 EPSS Score
Feb 28, 2022 EPSS Score
Apr 1, 2022 EPSS Score
Jul 3, 2022 EPSS Score
Sep 4, 2022 EPSS Score

References

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