CVE-2021-3737
medium
CVSS v3
—
CVSS v4 NEW
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VIR risk
5.5
Description
A flaw was found in python. An improperly handled HTTP response in the HTTP client code of python may allow a remote attacker, who controls the HTTP server, to make the client script enter an infinite loop, consuming CPU time. The highest threat from this vulnerability is to system availability.
Predictions
Exploit likelihood
20%
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
| OS | Version | Status | Fixed in |
|---|---|---|---|
| sles | affected | | |
| rocky | 8 | fixed | |
| debian | bookworm | fixed | 7.3.8+dfsg-1 |
| debian | bullseye | fixed | 7.3.5+dfsg-2+deb11u4 |
| debian | forky | fixed | 7.3.8+dfsg-1 |
| debian | sid | fixed | 7.3.8+dfsg-1 |
| debian | trixie | fixed | 7.3.8+dfsg-1 |
References
- https://www.suse.com/security/cve/CVE-2021-3737.html
- https://errata.rockylinux.org/RLSA-2022:1821
- https://errata.rockylinux.org/RLSA-2022:1764
- https://errata.rockylinux.org/RLSA-2021:4160
- https://security-tracker.debian.org/tracker/CVE-2021-3737
- https://errata.almalinux.org/8/ALSA-2022-1986.html
- https://errata.almalinux.org/8/ALSA-2022-1764.html
- https://errata.almalinux.org/8/ALSA-2022-1821.html
- https://errata.almalinux.org/8/ALSA-2021-4160.html
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.