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CVE-2024-2511

49
FAUCET Score

CVE-2024-2511 is a denial-of-service vulnerability affecting TLSv1.3 servers configured with the non-default SSL_OP_NO_TICKET option. This specific configuration can lead to unbounded memory growth in the session cache, causing the server to become unresponsive. The vulnerability has a CVSS score of 5.9 (Medium), indicating a network-based attack with high impact on availability and high attack complexity. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 1.1.1, < 1.1.1yCPE match
cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*
>= 3.0.0, < 3.0.14CPE match
cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*
>= 3.1.0, < 3.1.6CPE match
cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*
>= 3.2.0, < 3.2.2CPE match
cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.9MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.2
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
54.03%
Probability of exploitation in next 30 days
EPSS Percentile
98.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.5403 is in the 99th percentile among its peer group of 19,958 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (56)

jitsipatch availablevia llm_extracted
Fixed in: 3.2.2
View patch
microsoftpatch availablevia msrc
Product: azl3 cloud-hypervisor-cvm 38.0.72-2 on Azure Linux 3.0Fixed in: 38.0.72.2-1
microsoftpatch availablevia msrc
Product: cbl2 hvloader 1.0.1-5 on CBL Mariner 2.0Fixed in: 1.0.1-6
microsoftpatch availablevia msrc
Product: cbl2 openssl 1.1.1k-30 on CBL Mariner 2.0Fixed in: 1.1.1k-30
microsoftpatch availablevia msrc
Product: cbl2 openssl 1.1.1k-36 on CBL Mariner 2.0Fixed in: 1.1.1k-30
microsoftpatch availablevia msrc
Product: cbl2 cloud-hypervisor-cvm 38.0.72.2-1 on CBL Mariner 2.0Fixed in: -
microsoftpatch availablevia msrc
Product: azl3 cloud-hypervisor-cvm 38.0.72.2-1 on Azure Linux 3.0Fixed in: -
microsoftpatch availablevia msrc
Product: azl3 edk2 20240524git3e722403cd16-8 on Azure Linux 3.0Fixed in: 20240524git3e722403cd16-8
microsoftpatch availablevia msrc
Product: azl3 nodejs 20.14.0-1 on Azure Linux 3.0Fixed in: 20.14.0-1
microsoftpatch availablevia msrc
Product: azl3 nodejs 20.10.0-2 on Azure Linux 3.0Fixed in: 20.14.0-1
microsoftpatch availablevia msrc
Product: azl3 openssl 3.3.0-1 on Azure Linux 3.0Fixed in: 3.3.0-1
microsoftpatch availablevia msrc
Product: azl3 openssl 3.1.4-9 on Azure Linux 3.0Fixed in: 3.3.0-1
microsoftpatch availablevia msrc
Product: cbl2 nodejs18 18.18.2-7 on CBL Mariner 2.0Fixed in: 18.20.2-1
microsoftpatch availablevia msrc
Product: cbl2 cloud-hypervisor-cvm 38.0.72-1 on CBL Mariner 2.0Fixed in: 38.0.72.2-1
microsoftpatch availablevia msrc
Product: 17178-16823Fixed in: 1.0.1-6
microsoftpatch availablevia msrc
Product: 17291-16823Fixed in: 1.1.1k-30
microsoftpatch availablevia msrc
Product: 19813-17086Fixed in: 1.1.1k-30
microsoftpatch availablevia msrc
Product: 16977-16823Fixed in: -
microsoftpatch availablevia msrc
Product: 16982-17084Fixed in: -
microsoftpatch availablevia msrc
Product: 17627-17084Fixed in: 20240524git3e722403cd16-8
microsoftpatch availablevia msrc
Product: 16990-17084Fixed in: 20.14.0-1
microsoftpatch availablevia msrc
Product: 19740-17084Fixed in: 20.14.0-1
microsoftpatch availablevia msrc
Product: 17715-17084Fixed in: 3.3.0-1
microsoftpatch availablevia msrc
Product: 19786-17084Fixed in: 3.3.0-1
microsoftpatch availablevia msrc
Product: 19748-17086Fixed in: 18.20.2-1
microsoftpatch availablevia msrc
Product: 19801-17086Fixed in: 38.0.72.2-1
microsoftpatch availablevia msrc
Product: 19807-17084Fixed in: 38.0.72.2-1
microsoftpatch availablevia msrc
Product: CBL Mariner 2.0 x64Fixed in: 38.0.72.2-1
microsoftpatch availablevia msrc
Product: CBL Mariner 2.0 x64Fixed in: 1.0.1-6
microsoftpatch availablevia msrc
Product: CBL Mariner 2.0 x64Fixed in: 18.20.2-1
microsoftpatch availablevia msrc
Product: CBL Mariner 2.0 x64Fixed in: 1.1.1k-30
microsoftpatch availablevia msrc
Product: CBL Mariner 2.0 ARMFixed in: 38.0.72.2-1
microsoftpatch availablevia msrc
Product: Azure Linux 3.0 ARMFixed in: 38.0.72.2-1
microsoftpatch availablevia msrc
Product: CBL Mariner 2.0 ARMFixed in: 1.0.1-6
microsoftpatch availablevia msrc
Product: CBL Mariner 2.0 ARMFixed in: 18.20.2-1
microsoftpatch availablevia msrc
Product: CBL Mariner 2.0 ARMFixed in: 1.1.1k-30
microsoftpatch availablevia msrc
Product: Azure Linux 3.0 x64Fixed in: 38.0.72.2-1
microsoftpatch availablevia msrc
Product: Azure Linux 3.0 x64Fixed in: 20.14.0-1
microsoftpatch availablevia msrc
Product: Azure Linux 3.0 x64Fixed in: 3.3.0-1
microsoftpatch availablevia msrc
Product: Azure Linux 3.0 ARMFixed in: 20.14.0-1
microsoftpatch availablevia msrc
Product: Azure Linux 3.0 ARMFixed in: 3.3.0-1
microsoftpatch availablevia msrc
Product: 17238-17086Fixed in: 1.0.1-6
microsoftpatch availablevia msrc
Product: 19809-17086Fixed in: 1.0.1-6
microsoftpatch availablevia msrc
Product: cbl2 hvloader 1.0.1-6 on CBL Mariner 2.0Fixed in: 1.0.1-6
nodejspatch availablevia llm_extracted
View patch
pjsippatch availablevia llm_extracted
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: openssl-1:3.2.2-6.el9_5
View patch
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: edk2
redhatvendor investigatingvia redhat_api
Product: Red Hat Satellite 6Fixed in: python3.12-pyOpenSSL
redhatvendor investigatingvia redhat_api
Product: Red Hat Satellite 6Fixed in: python-pyOpenSSL
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: edk2
redhatvendor investigatingvia redhat_api
Product: Red Hat Satellite 6Fixed in: satellite:el8/python-pyOpenSSL
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: compat-openssl10
redhatvendor investigatingvia redhat_api
Product: Red Hat Satellite 6Fixed in: satellite-capsule:el8/python-pyOpenSSL
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: openssl
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: compat-openssl11

Vendor Advisories (6)

microsoft2024-Nov/CVE-2024-2511

CVE-2024-2511

Nov 12, 2024
nodejsllm-nodejs-302528ae26f0d946CRITICAL

HP ThinPro 8.1 SP4 Security Updates

Oct 29, 2024
pjsipllm-pjsip-7ba3ec379210ac70CRITICAL

HP ThinPro 8.1 SP4 Security Updates

Oct 29, 2024
microsoft2024-Apr/CVE-2024-2511Moderate

Unbounded memory growth with session handling in TLSv1.3

Apr 9, 2024
redhatCVE-2024-2511Low

openssl: Unbounded memory growth with session handling in TLSv1.3

Apr 8, 2024
jitsillm-jitsi-5f92f9c795f244ddLOW

Unbounded memory growth with session handling in TLSv1.3

Apr 8, 2024

References

cert-portal.siemens.com / productcert/html/ssa-265688.html
cert-portal.siemens.com / productcert/html/ssa-354112.html
cert-portal.siemens.com / productcert/html/ssa-398330.html
cert-portal.siemens.com / productcert/html/ssa-613116.html
cert-portal.siemens.com / productcert/html/ssa-769027.html
cert-portal.siemens.com / productcert/html/ssa-915275.html
lists.debian.org / debian-lts-announce/2024/10/msg00033.html
lists.debian.org / debian-lts-announce/2024/11/msg00000.html
security.netapp.com / advisory/ntap-20240503-0013
openwall.com / lists/oss-security/2024/04/08/5
github.com / openssl/openssl/commit/7e4d731b1c07201ad9374c1cd9ac5263bdf35bce
github.com / openssl/openssl/commit/b52867a9f618bb955bed2a3ce3db4d4f97ed8e5d
github.com / openssl/openssl/commit/e9d7083e241670332e0443da0f0d4ffb52829f08
github.openssl.org / openssl/extended-releases/commit/5f8d25770ae6437db119dfc951e207271a326640
openssl.org / news/secadv/20240408.txt