Resource exhaustion in Quic-Go
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.
Vulnerability class: DoS (Denial of Service)
EPSS: 0.012 (64.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.4 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:H.
Affected products
- Quic-go — versions = 0.40.0, >= 0.39.0, < 0.39.4, >= 0.38.0, < 0.38.2
- Quic-go_project Quic-go — versions 0.40.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security-advisories@github.com (x_refsource_CONFIRM, Vendor Advisory)
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com
Frequently asked questions
- What is CVE-2023-49295?
- CVE-2023-49295 is a medium-severity vulnerability in Quic-Go, classified under Uncontrolled Resource Consumption. CVSS score: 6.4/10. Published 2024-01-10.
- How severe is CVE-2023-49295?
- Medium severity. CVSS v3 base score is 6.4 out of 10.
- Is CVE-2023-49295 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.