Staging Environment: Content and features may be unstable or change without notice.
Advisory details: github_osv / GHSA-59g9-7gfx-c72p
Advisory ID github_osv/GHSA-59g9-7gfx-c72p
Aliases CVE-2021-41079
Summary Infinite loop in Tomcat due to parsing error 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.
Status Published
Exploitability 0.5
Weighted Severity 6.8
Risk 3.4
Affected and Fixed Packages Package Details
Introduced and Fixed Package Commit Patches Package Commit Patches Details
Weaknesses (2)
CWE-835 Loop with Unreachable Exit Condition ('Infinite Loop')
CWE-20 Improper Input Validation
System Score Found at
cvssv3.1 7.5 https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2021/09/GHSA-59g9-7gfx-c72p/GHSA-59g9-7gfx-c72p.json
generic_textual HIGH
Reference id Reference type URL
https://github.com/apache/tomcat
https://github.com/apache/tomcat/commit/34115fb3c83f6cd97772232316a492a4cc5729e0
https://lists.apache.org/thread.html/r6b6b674e3f168dd010e67dbe6848b866e2acf26371452fdae313b98a@%3Cusers.tomcat.apache.org%3E
https://lists.apache.org/thread.html/rb4de81ac647043541a32881099aa6eb5a23f1b7fd116f713f8ab9dbe@%3Cdev.tomcat.apache.org%3E
https://lists.apache.org/thread.html/rccdef0349fdf4fb73a4e4403095446d7fe6264e0a58e2df5c6799434%40%3Cannounce.tomcat.apache.org%3E
https://lists.debian.org/debian-lts-announce/2021/09/msg00012.html
https://security.netapp.com/advisory/ntap-20211008-0005
https://www.debian.org/security/2021/dsa-4986
CVE-2021-41079 https://nvd.nist.gov/vuln/detail/CVE-2021-41079
No exploits are available.

No EPSS data available for this advisory.

Patch URL
There are no known patches.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2021/09/GHSA-59g9-7gfx-c72p/GHSA-59g9-7gfx-c72p.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none

There are no SSVC decisions available.