CVE-2023-29409
Mozilla TLS RSA Key Verification CPU Exhaustion Vulnerability
Description
Extremely large RSA keys in certificate chains can cause a client/server to expend significant CPU time verifying signatures. With fix, the size of RSA keys transmitted during handshakes is restricted to <= 8192 bits. Based on a survey of publicly trusted RSA keys, there are currently only three certificates in circulation with keys larger than this, and all three appear to be test certificates that are not actively deployed. It is possible there are larger keys in use in private PKIs, but we target the web PKI, so causing breakage here in the interests of increasing the default safety of users of crypto/tls seems reasonable.
INFO
Published Date :
Aug. 2, 2023, 8:15 p.m.
Last Modified :
Nov. 25, 2023, 11:15 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
1.4
Exploitability Score :
3.9
Public PoC/Exploit Available at Github
CVE-2023-29409 has a 2 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2023-29409.
| URL | Resource |
|---|---|
| https://go.dev/cl/515257 | Patch |
| https://go.dev/issue/61460 | Issue Tracking Patch Vendor Advisory |
| https://groups.google.com/g/golang-announce/c/X0b6CsSAaYI/m/Efv5DbZ9AwAJ | Mailing List Vendor Advisory |
| https://pkg.go.dev/vuln/GO-2023-1987 | Patch Vendor Advisory |
| https://security.gentoo.org/glsa/202311-09 | |
| https://security.netapp.com/advisory/ntap-20230831-0010/ |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
None
CVE-2023-29409 reproducer
Go
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2023-29409 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2023-29409 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Nov. 25, 2023
Action Type Old Value New Value Added Reference Go Project https://security.gentoo.org/glsa/202311-09 [No types assigned] -
CVE Modified by [email protected]
Nov. 07, 2023
Action Type Old Value New Value Removed CWE Go Project CWE-400 -
CVE Modified by [email protected]
Aug. 31, 2023
Action Type Old Value New Value Added Reference https://security.netapp.com/advisory/ntap-20230831-0010/ [No Types Assigned] -
Initial Analysis by [email protected]
Aug. 11, 2023
Action Type Old Value New Value Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L Changed Reference Type https://go.dev/cl/515257 No Types Assigned https://go.dev/cl/515257 Patch Changed Reference Type https://go.dev/issue/61460 No Types Assigned https://go.dev/issue/61460 Issue Tracking, Patch, Vendor Advisory Changed Reference Type https://groups.google.com/g/golang-announce/c/X0b6CsSAaYI/m/Efv5DbZ9AwAJ No Types Assigned https://groups.google.com/g/golang-announce/c/X0b6CsSAaYI/m/Efv5DbZ9AwAJ Mailing List, Vendor Advisory Changed Reference Type https://pkg.go.dev/vuln/GO-2023-1987 No Types Assigned https://pkg.go.dev/vuln/GO-2023-1987 Patch, Vendor Advisory Added CWE NIST CWE-400 Added CPE Configuration OR *cpe:2.3:a:golang:go:*:*:*:*:*:*:*:* versions up to (excluding) 1.19.12 *cpe:2.3:a:golang:go:*:*:*:*:*:*:*:* versions from (including) 1.20.0 up to (excluding) 1.20.7 *cpe:2.3:a:golang:go:1.21.0:rc1:*:*:*:*:*:* *cpe:2.3:a:golang:go:1.21.0:rc2:*:*:*:*:*:* *cpe:2.3:a:golang:go:1.21.0:rc3:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2023-29409 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2023-29409
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.12 }} 0.01%
score
0.47351
percentile