CVE catalog
CVE-2025-29785
golang-github-lucas-clemente-quic-go: CVE-2025-29785
- Severity
- High · CVSS 7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.48% · Oct 25, 2026
quic-go is an implementation of the QUIC protocol in Go. The loss recovery logic for path probe packets that was added in the v0.50.0 release can be used to trigger a nil-pointer dereference by a malicious QUIC client. In order to do so, the attacker first sends valid QUIC packets from different remote addresses (thereby triggering the newly added path validation logic: the server sends path probe packets), and then sending ACKs for packets received from the server specifically crafted to trigger the nil-pointer dereference. v0.50.1 contains a patch that fixes the vulnerability. This release contains a test that generates random sequences of sent packets (both regular and path probe packets), that was used to verify that the patch actually covers all corner cases. No known workarounds are available.
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 |
| Ubuntu | golang-github-lucas-clemente-quic-go | 22.04 | 0.18.0-3 | vulnerable |
| Ubuntu | golang-github-lucas-clemente-quic-go | 22.04 | 0.24.0-1 | vulnerable |
| Ubuntu | golang-github-lucas-clemente-quic-go | 22.04 | 0.25.0-1 | vulnerable |
| Ubuntu | golang-github-lucas-clemente-quic-go | 24.04 | 0.37.4-1 | vulnerable |
| Ubuntu | golang-github-lucas-clemente-quic-go | 24.04 | 0.38.2-1 | vulnerable |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | golang-github-lucas-clemente-quic-go | source | sid | 0.50.1-1 | not yet assigned | Not reported | Not reported |
| Debian | golang-github-lucas-clemente-quic-go | source | forky | 0.50.1-1 | not yet assigned | Not reported | Not reported |
| Debian | golang-github-lucas-clemente-quic-go | source | trixie | 0.50.1-1 | not yet assigned | Not reported | Not reported |
| Debian | golang-github-lucas-clemente-quic-go | source | bookworm | (unfixed) | not yet assigned | Not reported | Not reported |
Notes
[bookworm] golang-github-lucas-clemente-quic-go: Minor issue
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [golang-github-lucas-clemente-quic-go-dev]Affected
Source package: [golang-github-lucas-clemente-quic-go]
Details (4)
0.29.0-1· all · bookwormAffected
dsa · golang-github-lucas-clemente-quic-go · debian · bookworm; dsa · golang-github-lucas-clemente-quic-go · debian · 12
0.29.0-1· all · bookwormAffected
dsa · golang-github-lucas-clemente-quic-go · debian · bookworm; dsa · golang-github-lucas-clemente-quic-go · debian · 12
0.46.0-2~bpo12+1· all · bookworm-backportsAffected
dsa · golang-github-lucas-clemente-quic-go · debian · bookworm; dsa · golang-github-lucas-clemente-quic-go · debian · 12
0.46.0-2~bpo12+1· all · bookworm-backportsAffected
dsa · golang-github-lucas-clemente-quic-go · debian · bookworm; dsa · golang-github-lucas-clemente-quic-go · debian · 12
[Debian 13 (Trixie)]
Source package: [golang-github-lucas-clemente-quic-go]
Details (4)
0.50.1-2· all · trixieFixed · Fixed:
0.50.1-1dsa · golang-github-lucas-clemente-quic-go · debian · 13
0.50.1-2· all · trixieFixed · Fixed:
0.50.1-1dsa · golang-github-lucas-clemente-quic-go · debian · 13
0.59.0-2~bpo13+1· all · trixie-backportsFixed · Fixed:
0.50.1-1dsa · golang-github-lucas-clemente-quic-go · debian · 13
0.59.0-2~bpo13+1· all · trixie-backportsFixed · Fixed:
0.50.1-1dsa · golang-github-lucas-clemente-quic-go · debian · 13
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/opensuse-su-2025_15225-1.json]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2025-29785]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2025-29785]
- [https://security-tracker.debian.org/tracker/CVE-2025-29785]
- [https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-29785.json]
[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]