PT-2023-29922 · Quic-Go · Quic-Go

Marten-Seemann · CVE-2023-46239 · Published 2023-10-30 · Updated 2023-11-09

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions quic-go versions 0.37.0 through 0.37.2

Description The issue arises from serializing an ACK frame after the CRYPTO frame, allowing a node to complete the handshake. This can trigger a nil pointer dereference when the node attempts to drop the Handshake packet number space, leading to a panic. An attacker can bring down a quic-go node with minimal effort by completing the QUIC handshake, which requires sending and receiving only a few packets.

Recommendations For quic-go versions 0.37.0 through 0.37.2, update to version 0.37.3 to resolve the issue. As a temporary workaround, consider restricting access to the QUIC handshake protocol until the patch is applied.

Exploit

Fix

NULL Pointer Dereference

Weakness Enumeration

CWE-248

CWE-476

Related Identifiers

CVE-2023-46239

GHSA-3Q6M-V84F-6P9H

GO-2023-2160

Affected Products

Quic-Go

References · 14

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/46xxx/CVE-2023-46239.json · Exploit
• https://github.com/quic-go/quic-go/commit/b6a4725b60f1fe04e8f1ddcc3114e290fcea1617 · Patch
• https://github.com/quic-go/quic-go/security/advisories/GHSA-3q6m-v84f-6p9h · Vendor Advisory
• https://osv.dev/vulnerability/GO-2023-2160 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-46239 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2023-46239 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2023-46239 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2023-46239 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-3q6m-v84f-6p9h · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2023-46239 · Vendor Advisory
• https://github.com/quic-go/quic-go · Note
• https://github.com/quic-go/quic-go/releases/tag/v0.37.3 · Note
• https://t.me/cibsecurity/73255 · Telegram Post
• https://twitter.com/VulmonFeeds/status/1719422378420158817 · Twitter Post