CVE-2024-2511
"OpenSSL TLSv1.3 Server DoS Vulnerability"
Description
Issue summary: Some non-default TLS server configurations can cause unbounded memory growth when processing TLSv1.3 sessions Impact summary: An attacker may exploit certain server configurations to trigger unbounded memory growth that would lead to a Denial of Service This problem can occur in TLSv1.3 if the non-default SSL_OP_NO_TICKET option is being used (but not if early_data support is also configured and the default anti-replay protection is in use). In this case, under certain conditions, the session cache can get into an incorrect state and it will fail to flush properly as it fills. The session cache will continue to grow in an unbounded manner. A malicious client could deliberately create the scenario for this failure to force a Denial of Service. It may also happen by accident in normal operation. This issue only affects TLS servers supporting TLSv1.3. It does not affect TLS clients. The FIPS modules in 3.2, 3.1 and 3.0 are not affected by this issue. OpenSSL 1.0.2 is also not affected by this issue.
INFO
Published Date :
April 8, 2024, 2:15 p.m.
Last Modified :
Oct. 14, 2024, 3:15 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
Exploitability Score :
Public PoC/Exploit Available at Github
CVE-2024-2511 has a 7 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-2024-2511.
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).
Fluentbit container image built as small as possible with security in mind
docker-image dockerfile fluent-bit
Dockerfile
None
Dockerfile Roff Java
None
Dockerfile Python
Container Vulnerability Analysis tooling
Dockerfile Shell
None
HCL
None
CDDS webMethods Retirement Project
webmethods-retirement ag pssg java springboot
Java Dockerfile
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2024-2511 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2024-2511 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.
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CVE Modified by [email protected]
Oct. 14, 2024
Action Type Old Value New Value Removed Reference OpenSSL Software Foundation http://www.openwall.com/lists/oss-security/2024/04/08/5 Removed Reference OpenSSL Software Foundation https://security.netapp.com/advisory/ntap-20240503-0013/ Added CWE OpenSSL Software Foundation CWE-1325 -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
May. 03, 2024
Action Type Old Value New Value Added Reference OpenSSL Software Foundation https://security.netapp.com/advisory/ntap-20240503-0013/ [No types assigned] -
CVE Modified by [email protected]
May. 01, 2024
Action Type Old Value New Value Added Reference OpenSSL Software Foundation http://www.openwall.com/lists/oss-security/2024/04/08/5 [No types assigned] -
CVE Received by [email protected]
Apr. 08, 2024
Action Type Old Value New Value Added Description Issue summary: Some non-default TLS server configurations can cause unbounded memory growth when processing TLSv1.3 sessions Impact summary: An attacker may exploit certain server configurations to trigger unbounded memory growth that would lead to a Denial of Service This problem can occur in TLSv1.3 if the non-default SSL_OP_NO_TICKET option is being used (but not if early_data support is also configured and the default anti-replay protection is in use). In this case, under certain conditions, the session cache can get into an incorrect state and it will fail to flush properly as it fills. The session cache will continue to grow in an unbounded manner. A malicious client could deliberately create the scenario for this failure to force a Denial of Service. It may also happen by accident in normal operation. This issue only affects TLS servers supporting TLSv1.3. It does not affect TLS clients. The FIPS modules in 3.2, 3.1 and 3.0 are not affected by this issue. OpenSSL 1.0.2 is also not affected by this issue. Added Reference OpenSSL Software Foundation https://www.openssl.org/news/secadv/20240408.txt [No types assigned] Added Reference OpenSSL Software Foundation https://github.com/openssl/openssl/commit/e9d7083e241670332e0443da0f0d4ffb52829f08 [No types assigned] Added Reference OpenSSL Software Foundation https://github.com/openssl/openssl/commit/7e4d731b1c07201ad9374c1cd9ac5263bdf35bce [No types assigned] Added Reference OpenSSL Software Foundation https://github.com/openssl/openssl/commit/b52867a9f618bb955bed2a3ce3db4d4f97ed8e5d [No types assigned] Added Reference OpenSSL Software Foundation https://github.openssl.org/openssl/extended-releases/commit/5f8d25770ae6437db119dfc951e207271a326640 [No types assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2024-2511 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-2024-2511
weaknesses.