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.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade opensslUpgrade openssl-perlUpgrade openssl-libsUpgrade openssl-devel | Nov 21, 2024 | Apr 8, 2024 |
| Alpine Linux | — | Upgrade openssl | Jun 6, 2024 | Apr 8, 2024 |
| Amazon Linux Ami 2 | — | Upgrade openssl11-develUpgrade openssl11-libsUpgrade edk2-toolsUpgrade edk2-tools-pythonUpgrade openssl11Upgrade edk2-debuginfoUpgrade edk2-ovmfUpgrade edk2-tools-docUpgrade openssl11-staticUpgrade openssl11-debuginfoUpgrade edk2-aarch64 | May 16, 2024 | Apr 8, 2024 |
| Amazon_linux_2023 | — | Upgrade openssl-debuginfoUpgrade openssl-debugsourceUpgrade openssl-develUpgrade openssl-snapsafe-libsUpgrade openssl-snapsafe-libs-debuginfoUpgrade openssl-perlUpgrade opensslUpgrade openssl-libsUpgrade openssl-libs-debuginfo | Feb 17, 2025 | Apr 8, 2024 |
| Debian | — | Upgrade openssl | Sep 2, 2024 | Apr 8, 2024 |
| Dell Powerstore Dsa2024408 | — | Upgrade Dell PowerStoreOS to the latest version | Jan 13, 2026 | Sep 26, 2024 |
| Dell Powerstore Dsa2024432 | — | Upgrade Dell PowerStoreOS to the latest version | Jan 13, 2026 | Oct 29, 2024 |
| F5 Big Ip | — | — | Nov 11, 2024 | Apr 8, 2024 |
| Freebsd | — | Upgrade openssl31Upgrade opensslUpgrade openssl31-quictlsUpgrade openssl-quictlsUpgrade openssl32 | Dec 10, 2025 | Apr 11, 2024 |
| Http Openssl | — | Upgrade to the latest version of OpenSSL | Jun 5, 2024 | Apr 8, 2024 |
| Huawei Euleros 2_0_sp10 | — | Upgrade openssl-libsUpgrade openssl-perlUpgrade openssl | Jul 16, 2024 | Apr 8, 2024 |
| Huawei Euleros 2_0_sp11 | — | Upgrade openssl-perlUpgrade opensslUpgrade openssl-libs | Jun 26, 2024 | Apr 8, 2024 |
| Huawei Euleros 2_0_sp12 | — | Upgrade openssl-libsUpgrade openssl-perlUpgrade openssl | Oct 8, 2024 | Apr 8, 2024 |
| Huawei Euleros 2_0_sp8 | — | Upgrade opensslUpgrade openssl-libsUpgrade openssl-develUpgrade openssl-perl | Jul 23, 2024 | Apr 8, 2024 |
| Huawei Euleros 2_0_sp9 | — | Upgrade opensslUpgrade openssl-perlUpgrade openssl-libs | Jul 17, 2024 | Apr 8, 2024 |
| Ibm Aix | — | Apply the fix or workaround for openssl_advisory41 | Jul 17, 2024 | Apr 8, 2024 |
| Oracle_linux | — | Upgrade openssl-perlUpgrade openssl-fips-provider-soUpgrade openssl-libsUpgrade opensslUpgrade openssl-develUpgrade openssl-fips-provider | Nov 21, 2024 | Apr 8, 2024 |
| Redhat_linux | — | Upgrade openssl-perlNo solution existsUpgrade openssl-develUpgrade openssl-debuginfoUpgrade openssl-libs-debuginfoUpgrade openssl-fips-provider-so-debuginfoUpgrade openssl-libsUpgrade openssl-debugsourceUpgrade opensslUpgrade openssl-fips-provider-so-debugsourceUpgrade openssl-fips-providerUpgrade openssl-fips-provider-so | Nov 13, 2024 | Apr 8, 2024 |
| Rocky_linux | — | Upgrade openssl-debugsourceUpgrade openssl-debuginfoUpgrade openssl-develUpgrade opensslUpgrade openssl-libs-debuginfoUpgrade openssl-perlUpgrade openssl-libs | Mar 18, 2025 | Apr 8, 2024 |
| Suse | — | Upgrade libopenssl1_1-hmacUpgrade libopenssl3-32bitUpgrade libopenssl-3-fips-providerUpgrade openssl-3-docUpgrade openssl-1_1Upgrade libopenssl-1_1-devel-32bitUpgrade openssl-3Upgrade libopenssl3-x86-64-v3Upgrade libopenssl1_1-hmac-32bitUpgrade libopenssl1_1Upgrade openssl-1_1-docUpgrade libopenssl-3-devel-32bitUpgrade libopenssl3Upgrade libopenssl-3-develUpgrade libopenssl-3-fips-provider-32bitUpgrade libopenssl1_1-32bitUpgrade libopenssl-1_1-develUpgrade libopenssl-3-fips-provider-x86-64-v3 | May 15, 2024 | Apr 8, 2024 |
| Ubuntu | — | Upgrade ovmf-ia32Upgrade libssl1.1 (Ubuntu Pro)Upgrade qemu-efiUpgrade libssl3Upgrade ovmfUpgrade openssl1.0 (Ubuntu Pro)Upgrade openssl (Ubuntu Pro)Upgrade libssl3t64Upgrade qemu-efi-loongarch64Upgrade libssl1.0.0 (Ubuntu Pro)Upgrade qemu-efi-armUpgrade qemu-efi-aarch64Upgrade libssl1.1Upgrade qemu-efi-riscv64 | Aug 1, 2024 | Apr 8, 2024 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Jan 20, 2025 | Apr 8, 2024 |
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