ghsa-j972-j939-p2v3
Vulnerability from github
Impact
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.
Patches
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.
Workarounds
No.
References
This issue has been reported publicly, but without any context, in https://github.com/quic-go/quic-go/issues/4981.
{
"affected": [
{
"package": {
"ecosystem": "Go",
"name": "github.com/quic-go/quic-go"
},
"ranges": [
{
"events": [
{
"introduced": "0.50.0"
},
{
"fixed": "0.50.1"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2025-29785"
],
"database_specific": {
"cwe_ids": [
"CWE-248"
],
"github_reviewed": true,
"github_reviewed_at": "2025-06-03T06:09:56Z",
"nvd_published_at": "2025-06-02T11:15:21Z",
"severity": "HIGH"
},
"details": "### Impact\n\nThe 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.\n\nIn 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.\n\n### Patches\n\nv0.50.1 contains a patch that fixes the vulnerability.\n\nThis 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.\n\n### Workarounds\n\nNo.\n\n### References\n\nThis issue has been reported publicly, but without any context, in https://github.com/quic-go/quic-go/issues/4981.",
"id": "GHSA-j972-j939-p2v3",
"modified": "2025-06-04T20:57:25Z",
"published": "2025-06-03T06:09:56Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/quic-go/quic-go/security/advisories/GHSA-j972-j939-p2v3"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-29785"
},
{
"type": "WEB",
"url": "https://github.com/quic-go/quic-go/issues/4981"
},
{
"type": "WEB",
"url": "https://github.com/quic-go/quic-go/commit/b90058aba5f65f48e0e150c89bbaa21a72dda4de"
},
{
"type": "PACKAGE",
"url": "https://github.com/quic-go/quic-go"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
],
"summary": "quic-go Has Panic in Path Probe Loss Recovery Handling"
}
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.