CVE-2021-43797
medium
CVSS v3
—
CVSS v4 NEW
—
VIR risk
5.5
Description
HTTP request smuggling in netty
Predictions
Exploit likelihood
30%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
SUSE Affected 1 release
| Version | Status | Fixed in |
|---|---|---|
| — | Affected | — |
Debian Fixed 5 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Fixed | 1:4.1.48-6 |
| sid | Fixed | 1:4.1.48-6 |
| forky | Fixed | 1:4.1.48-6 |
| bullseye | Fixed | 1:4.1.48-4+deb11u1 |
| bookworm | Fixed | 1:4.1.48-6 |
Rocky Linux Fixed 1 release
| Version | Status | Fixed in |
|---|---|---|
| 8 | Fixed | — |
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| Maven | io.netty:netty-codec-http | >=4.0.0,<4.1.71.Final | 4.1.71.Final |
| Maven | org.jboss.netty:netty | | |
| Maven | io.netty:netty | | |
References
- https://www.suse.com/security/cve/CVE-2021-43797.html
- https://errata.rockylinux.org/RLSA-2022:5498
- https://github.com/netty/netty/security/advisories/GHSA-wx5j-54mm-rqqq
- https://nvd.nist.gov/vuln/detail/CVE-2021-43797
- https://github.com/netty/netty/pull/11891
- https://github.com/netty/netty/commit/07aa6b5938a8b6ed7a6586e066400e2643897323
- https://github.com/netty/netty
- https://lists.debian.org/debian-lts-announce/2023/01/msg00008.html
- https://security.netapp.com/advisory/ntap-20220107-0003
- https://www.debian.org/security/2023/dsa-5316
- https://www.oracle.com/security-alerts/cpuapr2022.html
- https://www.oracle.com/security-alerts/cpujul2022.html
- https://security-tracker.debian.org/tracker/CVE-2021-43797
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.