CVE catalog
CVE-2023-49295
golang-github-lucas-clemente-quic-go: CVE-2023-49295
- Severity
- Medium · CVSS 6.5
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 1.20% · Oct 25, 2026
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.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | golang-github-lucas-clemente-quic-go | sid | 0.59.0-2 | fixed |
| Debian | golang-github-lucas-clemente-quic-go | forky | 0.59.0-2 | fixed |
| Debian | golang-github-lucas-clemente-quic-go | trixie | 0.50.1-2 | fixed |
| Debian | golang-github-lucas-clemente-quic-go | bookworm | 0.29.0-1 | vulnerable |
| Opensuse | dnscrypt-proxy | leap 16.0 | 2.1.16-bp160.1.1 | fixed |
| Opensuse | kubo | tumbleweed | 0.32.1-1.1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | golang-github-lucas-clemente-quic-go | source | sid | 0.38.2-1 | not yet assigned | Not reported | Not reported |
| Debian | golang-github-lucas-clemente-quic-go | source | forky | 0.38.2-1 | not yet assigned | Not reported | Not reported |
| Debian | golang-github-lucas-clemente-quic-go | source | trixie | 0.38.2-1 | not yet assigned | Not reported | Not reported |
| Debian | golang-github-lucas-clemente-quic-go | source | bookworm | (unfixed) | not yet assigned | Not reported | Not reported |
| Opensuse | dnscrypt-proxy | rpm | leap 16.0 | 2.1.16-bp160.1.1 | Not reported | OPENSUSE-RU-2026:21160-1 | Not reported |
| Opensuse | kubo | rpm | tumbleweed | 0.32.1-1.1 | Not reported | OPENSUSE-SU-2025:14626-1 | Not reported |
Notes
[bookworm] golang-github-lucas-clemente-quic-go: Minor issue
OpenFactory catalog packages
Matching against OpenFactory catalog package versions is in progress.
References
- [https://ftp.suse.com/pub/projects/security/csaf/opensuse-su-2024_13570-1.json]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2023-49295]
- [https://osv.dev/vulnerability/openSUSE-RU-2026:21160-1]
- [https://osv.dev/vulnerability/openSUSE-SU-2025:14626-1]
- [https://security-tracker.debian.org/tracker/CVE-2023-49295]
- [https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-49295.json]
- [https://wid.cert-bund.de/.well-known/csaf/white/2024/wid-sec-w-2024-0407.json]
[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]