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Critical

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

Type: advisorySource: Official CVE List1 source record

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: 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.

Announced Source revision 1
Original source ↗

CVE-2022-49094

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2022-49094

Linux

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Linux

Source reference: /containers/cna/affected/1/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "f295b3ae9f5927e084bd5decdff82390e3471801",
        "lessThan": "2b7d14c105dd8f6412eda5a91e1e6154653731e3",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "f295b3ae9f5927e084bd5decdff82390e3471801",
        "lessThan": "589154d0f18945f41d138a5b4e49e518d294474b",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "f295b3ae9f5927e084bd5decdff82390e3471801",
        "lessThan": "6e2f1b033b17dedda51d465861b69e58317d6343",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "f295b3ae9f5927e084bd5decdff82390e3471801",
        "lessThan": "29be1816cbab9a0dc6243120939fd10a92753756",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "f295b3ae9f5927e084bd5decdff82390e3471801",
        "lessThan": "2304660ab6c425df64d95301b601424c6a50f28b",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "f295b3ae9f5927e084bd5decdff82390e3471801",
        "lessThan": "9381fe8c849cfbe50245ac01fc077554f6eaa0e2",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "net/tls/tls_sw.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "5.2"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "5.2",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "5.4.189",
        "versionType": "semver",
        "lessThanOrEqual": "5.4.*"
      },
      {
        "status": "unaffected",
        "version": "5.10.111",
        "versionType": "semver",
        "lessThanOrEqual": "5.10.*"
      },
      {
        "status": "unaffected",
        "version": "5.15.34",
        "versionType": "semver",
        "lessThanOrEqual": "5.15.*"
      },
      {
        "status": "unaffected",
        "version": "5.16.20",
        "versionType": "semver",
        "lessThanOrEqual": "5.16.*"
      },
      {
        "status": "unaffected",
        "version": "5.17.3",
        "versionType": "semver",
        "lessThanOrEqual": "5.17.*"
      },
      {
        "status": "unaffected",
        "version": "5.18",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "net/tls/tls_sw.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2022-49094

Source reference: /cveMetadata/cveId

Publisher severity

critical

Source reference: /containers/cna/metrics

Event
#30179 · Revision 1
Added to Heist Feed
Publisher date
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