6.5 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
7 High
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
41.2%
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.
github.com/quic-go/quic-go/commit/17fc98c2d81dbe685c19702dc694a9d606ac56dc
github.com/quic-go/quic-go/commit/21609ddfeff93668c7625a85eb09f1541fdad965
github.com/quic-go/quic-go/commit/3a9c18bcd27a01c551ac9bf8bd2b4bded77c189a
github.com/quic-go/quic-go/commit/554d543b50b917369fb1394cc5396d928166cf49
github.com/quic-go/quic-go/commit/6cc3d58935426191296171a6c0d1ee965e10534e
github.com/quic-go/quic-go/commit/9aaefe19fc3dc8c8917cc87e6128bb56d9e9e6cc
github.com/quic-go/quic-go/commit/a0ffa757499913f7be69aa78f573a6aee3430ae4
github.com/quic-go/quic-go/commit/d7aa627ebde91cf799ada2a07443faa9b1e5abb8
github.com/quic-go/quic-go/security/advisories/GHSA-ppxx-5m9h-6vxf
lists.fedoraproject.org/archives/list/[email protected]/message/G5RSHDTVMYAIGYVVFGKTMFHAZJMA3EVV/
lists.fedoraproject.org/archives/list/[email protected]/message/ZE7IOKXX5AATU2WR3V76X5Y3A44QAATG/
6.5 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
7 High
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
41.2%