quic-go's path validation mechanism can cause denial of service
CVE-2023-49295

6.4MEDIUM

Key Information:

Vendor

Quic-go

Status
Quic-go
Vendor
CVE Published:
10 January 2024

What is CVE-2023-49295?

quic-go is an implementation of the QUIC protocol (RFC 9000, RFC 9001, RFC 9002) in Go. An attacker can cause its peer to run out of memory sending a large number of PATH_CHALLENGE frames. The receiver is supposed to respond to each PATH_CHALLENGE frame with a PATH_RESPONSE frame. The attacker can prevent the receiver from sending out (the vast majority of) these PATH_RESPONSE frames by collapsing the peers congestion window (by selectively acknowledging received packets) and by manipulating the peer's RTT estimate. This vulnerability has been patched in versions 0.37.7, 0.38.2 and 0.39.4.

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Affected Version(s)

quic-go = 0.40.0 = 0.40.0

quic-go >= 0.39.0, < 0.39.4 < 0.39.0, 0.39.4

quic-go >= 0.38.0, < 0.38.2 < 0.38.0, 0.38.2

References

https://github.com/quic-go/quic-go/security/advisories/GH...
x_refsource_CONFIRM
https://github.com/quic-go/quic-go/commit/17fc98c2d81dbe6...
x_refsource_MISC
https://github.com/quic-go/quic-go/commit/21609ddfeff9366...
x_refsource_MISC

CVSS V3.1

Score:
6.4
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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