Insufficient Verification of Data Authenticity Affecting caddy package, versions <2.8.4-r4
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-CHAINGUARDLATEST-CADDY-8453726
- published3 Dec 2024
- disclosed2 Dec 2024
Introduced: 2 Dec 2024
NewCVE-2024-53259 (opens in a new tab)How to fix?
Upgrade Chainguard caddy to version 2.8.4-r4 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream caddy package and not the caddy package as distributed by Chainguard.
See How to fix? for Chainguard relevant fixed versions and status.
quic-go is an implementation of the QUIC protocol in Go. An off-path attacker can inject an ICMP Packet Too Large packet. Since affected quic-go versions used IP_PMTUDISC_DO, the kernel would then return a "message too large" error on sendmsg, i.e. when quic-go attempts to send a packet that exceeds the MTU claimed in that ICMP packet. By setting this value to smaller than 1200 bytes (the minimum MTU for QUIC), the attacker can disrupt a QUIC connection. Crucially, this can be done after completion of the handshake, thereby circumventing any TCP fallback that might be implemented on the application layer (for example, many browsers fall back to HTTP over TCP if they're unable to establish a QUIC connection). The attacker needs to at least know the client's IP and port tuple to mount an attack. This vulnerability is fixed in 0.48.2.