6.5

CVE-2024-53259: quic-go affected by an ICMP Packet Too Large Injection Attack on Linux

Deferred
AliasesUBUNTU-CVE-2024-53259DEBIAN-CVE-2024-53259CGA-44x3-hwvc-j2mj
Published 02-12-2024Last modified 02-12-2024

Vulnerability summary

CVE-2024-53259 is a medium (CVSS 6.5) vulnerability in quic-go. EPSS estimates a 0.60% chance of exploitation in the next 30 days, higher than 48.9% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 6.5, adjacent network); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
6.5/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.60%
0%100%
Low · +0.01 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 2 · Related 16

Timeline

  1. 02-12-2024
    PublishedVulnerability first disclosed.
  2. 02-12-2024
    Last modifiedVulnerability information updated.

Description

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.

CVSS metrics

8 scores · 7 sources · 2 versions

EPSS trend

Probability

0.60%

Chance of exploitation in the next 30 days

Percentile

49%

Versus all other CVEs

30-day change

Increase +0.01 pp

From 0.60% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: adjacent network, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.

Chainguard56 products
  • buf< 1.47.2-r1
  • caddy< 2.8.4-r4
  • caddy-fips< 2.8.4-r4
  • caddy-man< 2.8.4-r4
  • caddy-src< 2.8.4-r4
Wolfi13 products
  • buf< 1.47.2-r1
  • caddy< 2.8.4-r4
  • caddy-man< 2.8.4-r4
  • caddy-src< 2.8.4-r4
  • cloudflared< 2024.12.1-r0
Debian1 product
  • golang-github-lucas-clemente-quic-goAll versions (No fix recorded) | < 0.50.0-1
Github.com/quic-go1 product
  • quic-go< 0.48.2
Opensuse1 product
  • teleport&distro=openSUSE Tumbleweed< 17.0.3-1.1
Quic-go1 product
Ubuntu1 product
  • golang-github-lucas-clemente-quic-goAll versions (No fix recorded)

7 vendors · 74 products

References

14 links
Show all 14 references