CVE-2021-41079

unknown

Published 2021-09-20 · Modified 2024-02-22

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CVSS v3

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CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v4 NEW

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not yet in upstream

VIR risk

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Description

Apache Tomcat 8.5.0 to 8.5.63, 9.0.0-M1 to 9.0.43 and 10.0.0-M1 to 10.0.2 did not properly validate incoming TLS packets. When Tomcat was configured to use NIO+OpenSSL or NIO2+OpenSSL for TLS, a specially crafted packet could be used to trigger an infinite loop resulting in a denial of service.

Predictions

Exploit likelihood

30%

Patch ETA

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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 with source_tier=community-verified.

OS impact

SUSE Affected 1 release

Version	Status	Fixed in
—	Affected	—

Debian Fixed 5 releases

Version	Status	Fixed in
trixie	Fixed	`9.0.53-1`
sid	Fixed	`9.0.53-1`
forky	Fixed	`9.0.53-1`
bullseye	Fixed	`9.0.43-2~deb11u2`
bookworm	Fixed	`9.0.53-1`

Package impact

Ecosystem	Package	Vulnerable	Fixed
Maven	org.apache.tomcat:tomcat	`>=10.0.0,<10.0.4`	`10.0.4`
Maven	org.apache.tomcat:tomcat	`>=9.0.0,<9.0.44`	`9.0.44`
Maven	org.apache.tomcat:tomcat	`>=8.5.0,<8.5.64`	`8.5.64`

References

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.