CVE-2023-39533

highPriorität · verfolgen · 31EPSS 0.015 · 74. PerzentilDEEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

1.50% (74th) EPSS

CVSS 7.5 · high

Is it mine?

13 products

Prüfe deine Angriffsfläche

Who says so?

5 sources

cnnvd · enisa_euvd · osv · cert_bund

EPSS · bewertet 2026-10-21

go-libp2p is the Go implementation of the libp2p Networking Stack. Prior to versions 0.27.8, 0.28.2, and 0.29.1 malicious peer can use large RSA keys to run a resource exhaustion attack & force a node to spend time doing signature verification of the large key. This vulnerability is present in the core/crypto module of go-libp2p and can occur during the Noise handshake and the libp2p x509 extension verification step. To prevent this attack, go-libp2p versions 0.27.8, 0.28.2, and 0.29.1 restrict RSA keys to <= 8192 bits. To protect one's application, it is necessary to update to these patch releases and to use the updated Go compiler in 1.20.7 or 1.19.12. There are no known workarounds for this issue.

cvss

Technischer Schweregrad, 0–10. Eine Zeile je Quelle.

7.5

010

Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen⚠ Quellen uneinig · medium–high · 6.9–7.5

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hprimary · NVD / NIST USAusnutzbarkeit 3.9 · Auswirkung 3.6

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · ENISA EU

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · security-advisories@github.comAusnutzbarkeit 3.9 · Auswirkung 3.6

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · OSV

v3.16.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

SSVC

Eine Handlungsentscheidung — aus Ausnutzung und Auswirkung.

Exploitation: poc · Automatable: yes · Technical Impact: partialcoordinatorcisa_ssvcUS

schwächen

Die CWE-Schwächeklassen, zu denen dies gehört.

CWE-770USCWE-770US

betroffene Produkte (13)

Betroffene Produkte und Versionsbereiche.

Dell ECS <3.8.1.0alle Versionencert_bundDE
Dell PowerEdgealle Versionencert_bundDEcpe:/h:dell:poweredge:-
IBM InfoSphere Information Serveralle Versionencert_bundDEcpe:/a:ibm:infosphere_information_server:-
Dell ECS< 3.8.1.0cert_bundDE
libp2p go-libp2p≤ = 0.29.0enisa_euvdEU
libp2p go-libp2p≤ < 0.27.8enisa_euvdEU
libp2p go-libp2p0.28.0, → 0.28.2enisa_euvdEU
libp2p go-libp2p< 0.27.8nvdUScpe:2.3:a:libp2p:go-libp2p:*:*:*:*:*:*:*:*
libp2p go-libp2p0.28.0 → 0.28.2nvdUScpe:2.3:a:libp2p:go-libp2p:*:*:*:*:*:*:*:*
libp2p go-libp2p= 0.29.0nvdUScpe:2.3:a:libp2p:go-libp2p:*:*:*:*:*:*:*:*
Go github.com/libp2p/go-libp2p< 0.27.8osvUSpkg:golang/github.com/libp2p/go-libp2p
Go github.com/libp2p/go-libp2p0.28.0 → 0.28.2osvUSpkg:golang/github.com/libp2p/go-libp2p
Go github.com/libp2p/go-libp2p0.29.0 → 0.29.1osvUSpkg:golang/github.com/libp2p/go-libp2p

Advisories (3)

Hersteller- und Ökosystem-Meldungen dazu.

WID-SEC-W-2024-0794Dell ECS: Mehrere SchwachstellenDeutsch2024-04-04csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Dell ECS ausnutzen, um seine Privilegien zu erweitern, beliebigen Programmcode mit Administratorrechten auszuführen, Informationen offenzulegen, Dateien zu manipulieren, einen Cross-Site-Scripting-Angriff durchzuführen, Sicherheitsvorkehrungen zu umgehen oder einen Denial of Service Zustand herbeizuführen.
GHSA-876p-8259-xjgglibp2p nodes vulnerable to attack using large RSA keys2023-08-09ghsa · osvUS
### Impact A malicious peer can use large RSA keys to run a resource exhaustion attack & force a node to spend time doing signature verification of the large key. This vulnerability is present in the core/crypto module of go-libp2p and can occur during the Noise handshake and the libp2p x509 extension verification step. To prevent this attack, go-libp2p now restricts RSA keys to <= 8192 bits. ### Patches Users should upgrade their go-libp2p versions to >=v0.27.8, >= v0.28.2, or >=v0.29.1 To protect your application, it's necessary to update to these patch releases **AND** to use the updated Go compiler (1.20.7 or 1.19.12, respectively) ### Workarounds There are no known workarounds ### References The Golang crypto/tls package also had this vulnerability ("verifying certificate chains containing large RSA keys is slow” https://github.com/golang/go/issues/61460) Fix in golang/go crypto/tls: https://github.com/golang/go/commit/2350afd2e8ab054390e284c95d5b089c142db017 Fix in quic-go https://github.com/quic-go/quic-go/pull/4012
GO-2023-2000Large RSA keys can cause high resource usage in github.com/libp2p/go-libp2p2023-08-08vendor · osvUS
Large RSA keys can lead to resource exhaustion attacks. With fix, the size of RSA keys transmitted during handshakes is restricted to <= 8192 bits.

auch bekannt als (5)

Weitere Namen und Kennungen dieser Entität.

quellen

Welche Quellen diesen Datensatz belegen und wann.

cnnvd enisa_euvd osv cert_bund nvd NVD CVE.org MITRE

veröffentlicht 2023-08-08geändert 2026-09-01

Referenzen (26)

Externe Belege — Patches, Meldungen, Analysen.

scry

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