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CVE-2022-49094

9.8 · CRITICAL

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_s…

Published Feb 26, 2025CWE-125EPSS 0.67%

Overview

CVE-2022-49094 is a critical-severity vulnerability. It was published on February 26, 2025 and has a CVSS 3.1 base score of 9.8 (CRITICAL).

This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

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]

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refgit.kernel.org/stable/c/2304660ab6c425df64d95301b601424c6a50f28bRefgit.kernel.org/stable/c/29be1816cbab9a0dc6243120939fd10a92753756Refgit.kernel.org/stable/c/2b7d14c105dd8f6412eda5a91e1e6154653731e3Refgit.kernel.org/stable/c/589154d0f18945f41d138a5b4e49e518d294474bRefgit.kernel.org/stable/c/6e2f1b033b17dedda51d465861b69e58317d6343Refgit.kernel.org/stable/c/9381fe8c849cfbe50245ac01fc077554f6eaa0e2

How CyberStrike helps

Frequently asked questions

What is CVE-2022-49094?

CVE-2022-49094 is a critical-severity vulnerability. It was published on February 26, 2025 and has a CVSS 3.1 base score of 9.8 (CRITICAL).

How severe is CVE-2022-49094?

This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2022-49094?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2022-49094?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-49094 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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