In the Linux kernel, the following vulnerability has been resolved:
net/tls: fix slab-out-of-bounds bug in decrypt_internal
The memory size of tls_ctx->rx.iv for AES128-CCM is 12 setting in tls_set_sw_offload(). The return value of crypto_aead_ivsize() for "ccm(aes)" is 16. So memcpy() require 16 bytes from 12 bytes memory space will trigger slab-out-of-bounds bug as following:
================================================================== BUG: KASAN: slab-out-of-bounds in decrypt_internal+0x385/0xc40 [tls] Read of size 16 at addr ffff888114e84e60 by task tls/10911
Call Trace: <TASK> dump_stack_lvl+0x34/0x44 print_report.cold+0x5e/0x5db ? decrypt_internal+0x385/0xc40 [tls] kasan_report+0xab/0x120 ? decrypt_internal+0x385/0xc40 [tls] kasan_check_range+0xf9/0x1e0 memcpy+0x20/0x60 decrypt_internal+0x385/0xc40 [tls] ? tls_get_rec+0x2e0/0x2e0 [tls] ? process_rx_list+0x1a5/0x420 [tls] ? tls_setup_from_iter.constprop.0+0x2e0/0x2e0 [tls] decrypt_skb_update+0x9d/0x400 [tls] tls_sw_recvmsg+0x3c8/0xb50 [tls]
Allocated by task 10911: kasan_save_stack+0x1e/0x40 __kasan_kmalloc+0x81/0xa0 tls_set_sw_offload+0x2eb/0xa20 [tls] tls_setsockopt+0x68c/0x700 [tls] __sys_setsockopt+0xfe/0x1b0
Replace the crypto_aead_ivsize() with prot->iv_size + prot->salt_size when memcpy() iv value in TLS_1_3_VERSION scenario.
CVSS Details
- CVSS 3.1 Base Score: 9.8
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon Linux Ami 2 | — | Upgrade python-perfUpgrade bpftool-debuginfoUpgrade kernel-toolsUpgrade python-perf-debuginfoUpgrade perf-debuginfoUpgrade kernel-headersUpgrade kernel-debuginfo-common-x86_64Upgrade kernelUpgrade kernel-livepatch-5.10.112-108.499Upgrade kernel-develUpgrade kernel-debuginfo-common-aarch64Upgrade kernel-tools-develUpgrade kernel-tools-debuginfoUpgrade kernel-debuginfoUpgrade bpftoolUpgrade perf | May 22, 2025 | Feb 26, 2025 |
| Debian | — | Upgrade linux | Feb 27, 2025 | Feb 27, 2025 |
| Huawei Euleros 2_0_sp13 | — | Upgrade python3-perfUpgrade kernel-abi-stablelistsUpgrade bpftoolUpgrade kernel-toolsUpgrade kernel-tools-libsUpgrade kernel | Jul 1, 2025 | Feb 26, 2025 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | Feb 26, 2025 |
| Ubuntu | — | Upgrade linux-lowlatency-hwe-5.15Upgrade linux-aws-5.4Upgrade linux-raspi-5.4Upgrade linux-gkeUpgrade linux-awsUpgrade linux-raspiUpgrade linux-oracle-5.4Upgrade linux-bluefieldUpgrade linux-ibm-5.4Upgrade linuxUpgrade linux-realtimeUpgrade linux-intel-iotgUpgrade linux-hwe-5.4Upgrade linux-oracleUpgrade linux-azure-fipsUpgrade linux-iotUpgrade linux-azure-5.4Upgrade linux-kvmUpgrade linux-hwe-5.15Upgrade linux-azureUpgrade linux-lowlatencyUpgrade linux-ibmUpgrade linux-azure-5.15Upgrade linux-gcpUpgrade linux-gcp-fipsUpgrade linux-intel-iotg-5.15Upgrade linux-aws-fipsUpgrade linux-gcp-5.4Upgrade linux-fips | Mar 3, 2025 | Feb 26, 2025 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | May 27, 2026 | Feb 26, 2025 |
Prioritise with Active Threat Intelligence
With curated Threat Intelligence, you can see which vulnerabilities truly put you at risk, prioritize what matters most, and act before attackers do.
Explore Intelligence Hub