CVE-2023-6193

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Source
https://cve.org/CVERecord?id=CVE-2023-6193
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-6193.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2023-6193
Aliases
Published
2023-12-12T13:32:03Z
Modified
2026-08-12T03:51:22Z
Severity
  • 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L CVSS Calculator
Summary
Unbounded queuing of path validation messages in cloudflare-quiche
Details

quiche v. 0.15.0 through 0.19.0 was discovered to be vulnerable to unbounded queuing of path validation messages, which could lead to excessive resource consumption. QUIC path validation (RFC 9000 Section 8.2) requires that the recipient of a PATH_CHALLENGE frame responds by sending a PATH_RESPONSE. An unauthenticated remote attacker can exploit the vulnerability by sending PATH_CHALLENGE frames and manipulating the connection (e.g. by restricting the peer's congestion window size) so that PATH_RESPONSE frames can only be sent at the slower rate than they are received; leading to storage of path validation data in an unbounded queue. Quiche versions greater than 0.19.0 address this problem.

Database specific 
{
    "cna_assigner": "cloudflare",
    "cwe_ids": [
        "CWE-400"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/6xxx/CVE-2023-6193.json"
}
References

Affected packages

Git / github.com/cloudflare/quiche

Affected ranges

Type
GIT
Repo
https://github.com/cloudflare/quiche
Events
Introduced
fde3185409b1ea989c73c2dd9645965684667fee
Last Affected
caea234ed808b6cd19a14a69c2d92972d76053e2
Database specific
Show details 
{
    "cpe": "cpe:2.3:a:cloudflare:quiche:*:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "introduced": "0.15.0"
        },
        {
            "last_affected": "0.19.0"
        }
    ],
    "source": [
        "AFFECTED_FIELD",
        "CPE_RANGE"
    ]
}

Affected versions

0.*
0.26.0
0.26.1
0.27.0
0.28.0
0.29.0
datagram-socket-0.*
datagram-socket-0.8.0
octets-0.*
octets-0.3.5
qlog-0.*
qlog-0.17.0
qlog-0.18.0
tokio-quiche-0.*
tokio-quiche-0.15.0
tokio-quiche-0.16.0
tokio-quiche-0.18.0
tokio-quiche-0.19.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-6193.json"