net/tls: fix slab-out-of-bounds bug in decrypt_internal

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2022-49094
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2025-02-26 07:00:46 UTC
Updated2026-08-04 10:17:34 UTC
DescriptionIn 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.

Risk And Classification

Primary CVSS: v3.1 7.1 HIGH from [email protected]

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

Problem Types: CWE-125

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary7.1HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
3.1416baaa9-dc9f-4396-8d5f-8c081fb06d67Secondary9.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
3.1CNADECLARED9.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
High

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected f295b3ae9f5927e084bd5decdff82390e3471801 2b7d14c105dd8f6412eda5a91e1e6154653731e3 git Not specified
CNA Linux Linux affected f295b3ae9f5927e084bd5decdff82390e3471801 589154d0f18945f41d138a5b4e49e518d294474b git Not specified
CNA Linux Linux affected f295b3ae9f5927e084bd5decdff82390e3471801 6e2f1b033b17dedda51d465861b69e58317d6343 git Not specified
CNA Linux Linux affected f295b3ae9f5927e084bd5decdff82390e3471801 29be1816cbab9a0dc6243120939fd10a92753756 git Not specified
CNA Linux Linux affected f295b3ae9f5927e084bd5decdff82390e3471801 2304660ab6c425df64d95301b601424c6a50f28b git Not specified
CNA Linux Linux affected f295b3ae9f5927e084bd5decdff82390e3471801 9381fe8c849cfbe50245ac01fc077554f6eaa0e2 git Not specified
CNA Linux Linux affected 5.2 Not specified
CNA Linux Linux unaffected 5.2 semver Not specified
CNA Linux Linux unaffected 5.4.189 5.4.* semver Not specified
CNA Linux Linux unaffected 5.10.111 5.10.* semver Not specified
CNA Linux Linux unaffected 5.15.34 5.15.* semver Not specified
CNA Linux Linux unaffected 5.16.20 5.16.* semver Not specified
CNA Linux Linux unaffected 5.17.3 5.17.* semver Not specified
CNA Linux Linux unaffected 5.18 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/589154d0f18945f41d138a5b4e49e518d294474b 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/9381fe8c849cfbe50245ac01fc077554f6eaa0e2 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/2304660ab6c425df64d95301b601424c6a50f28b 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/2b7d14c105dd8f6412eda5a91e1e6154653731e3 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/6e2f1b033b17dedda51d465861b69e58317d6343 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/29be1816cbab9a0dc6243120939fd10a92753756 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
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