PT-2024-9120 · Quic-Go+2 · Quic-Go+2
Marten-Seemann
·
Published
2024-11-19
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Updated
2025-09-29
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CVE-2024-53259
CVSS v3.1
6.5
Medium
| Vector | AV:A/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 prior to 0.48.2
Description:
An off-path attacker can inject an ICMP Packet Too Large packet, disrupting a QUIC connection by setting the MTU value to smaller than 1200 bytes. This can be done after the handshake completion, circumventing any TCP fallback. The attacker needs to know the client's IP and port tuple to mount an attack.
Recommendations:
For versions prior to 0.48.2, upgrade to version 0.48.2 to fix the vulnerability.
As a temporary workaround, consider using
IP PMTUDISC PROBE instead of IP PMTUDISC DO to disable the kernel's MTU tracking.
Alternatively, use iptables to drop ICMP Unreachable packets to minimize the risk of exploitation.Exploit
Fix
Insufficient Verification of Data Authenticity
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Weakness Enumeration
Related Identifiers
Affected Products
Alt Linux
Debian
Quic-Go