CVE-2022-48967

Summary

In the Linux kernel, the following vulnerability has been resolved:

NFC: nci: Bounds check struct nfc_target arrays

While running under CONFIG_FORTIFY_SOURCE=y, syzkaller reported:

memcpy: detected field-spanning write (size 129) of single field "target->sensf_res" at net/nfc/nci/ntf.c:260 (size 18)

This appears to be a legitimate lack of bounds checking in nci_add_new_protocol(). Add the missing checks.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux019c4fbaa790e2b3f11dab0c8b7d9896d77db3e5 < 6b37f0dc0638d13a006f2f24d2f6ca61e83bc714affected
LinuxLinux019c4fbaa790e2b3f11dab0c8b7d9896d77db3e5 < dbdcfb9f6748218a149f62468d6297ce3f014e9caffected
LinuxLinux019c4fbaa790e2b3f11dab0c8b7d9896d77db3e5 < cff35329070b96b4484d23f9f48a5ca2c947e750affected
LinuxLinux019c4fbaa790e2b3f11dab0c8b7d9896d77db3e5 < 6778434706940b8fad7ef35f410d2b9929f256d2affected
LinuxLinux019c4fbaa790e2b3f11dab0c8b7d9896d77db3e5 < 27eb2d7a1b9987b6d0429b7716b1ff3b82c4ffc9affected
LinuxLinux019c4fbaa790e2b3f11dab0c8b7d9896d77db3e5 < 908b2da426fe9c3ce74cf541ba40e7a4251db191affected
LinuxLinux019c4fbaa790e2b3f11dab0c8b7d9896d77db3e5 < f41547546db9af99da2c34e3368664d7a79cefaeaffected
LinuxLinux019c4fbaa790e2b3f11dab0c8b7d9896d77db3e5 < e329e71013c9b5a4535b099208493c7826ee4a64affected
LinuxLinux3.4affected
LinuxLinux0 < 3.4unaffected
LinuxLinux4.9.336 <= 4.9.*unaffected
LinuxLinux4.14.302 <= 4.14.*unaffected
LinuxLinux4.19.269 <= 4.19.*unaffected
LinuxLinux5.4.227 <= 5.4.*unaffected
LinuxLinux5.10.159 <= 5.10.*unaffected
LinuxLinux5.15.83 <= 5.15.*unaffected
LinuxLinux6.0.13 <= 6.0.*unaffected
LinuxLinux6.1 <= *unaffected

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

References