High severity · published Apr 9, 2024
CVE-2024-27983
An attacker can make the Node.js HTTP/2 server completely unavailable by sending a small amount of HTTP/2 frames packets with a few HTTP/2 frames inside
8.2
CVSS
87.2%
EPSS
No
On KEV
Description
An attacker can make the Node.js HTTP/2 server completely unavailable by sending a small amount of HTTP/2 frames packets with a few HTTP/2 frames inside. It is possible to leave some data in nghttp2 memory after reset when headers with HTTP/2 CONTINUATION frame are sent to the server and then a TCP connection is abruptly closed by the client triggering the Http2Session destructor while header frames are still being processed (and stored in memory) causing a race condition.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
Low
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)87.2% · higher than 100% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
NO
Node · NodeJS
4.0 before 4.*; 5.0 before 5.*; 6.0 before 6.*; 7.0 before 7.*; 8.0 before 8.*; 9.0 before 9.*; +12 more · source: vendor
NO
Nodejs · Nodejs
through 18.20.0; through 20.12.0; through 21.7.1 · source: CISA
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-27983
CVE.org
https://www.cve.org/CVERecord?id=CVE-2024-27983
www.openwall.com
http://www.openwall.com/lists/oss-security/2024/04/03/16
hackerone.com
https://hackerone.com/reports/2319584
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JDECX4BYZLMM4S4LALN4DPZ2HUTTPLKE/
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/YDVFUH7ACZPYB3BS4SVILNOY7NQU73VW/
security.netapp.com
https://security.netapp.com/advisory/ntap-20240510-0002/
lists.debian.org
https://lists.debian.org/debian-lts-announce/2024/09/msg00029.html
More from Node
10.0
CVE-2026-21636
A flaw in Node.js's permission model allows Unix Domain Socket (UDS) connections to bypass network restrictions when `--permission` is enabled
9.8
CVE-2026-48930
A flaw in Node.js TLS hostname handling can cause Embedded-nul hostnames can lead to silent authority rebinding due to c-string truncation in resolver bindings
9.8
CVE-2024-21896
The permission model protects itself against path traversal attacks by calling path.resolve() on any paths given by the user
9.8
CVE-2023-39332
Various `node:fs` functions allow specifying paths as either strings or `Uint8Array` objects
9.8
CVE-2023-32002
The use of `Module._load()` can bypass the policy mechanism and require modules outside of the policy.json definition for a given module