CVE-2023-52974

Summary

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

scsi: iscsi_tcp: Fix UAF during login when accessing the shost ipaddress

If during iscsi_sw_tcp_session_create() iscsi_tcp_r2tpool_alloc() fails, userspace could be accessing the host's ipaddress attr. If we then free the session via iscsi_session_teardown() while userspace is still accessing the session we will hit a use after free bug.

Set the tcp_sw_host->session after we have completed session creation and can no longer fail.

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxa79af8a64d395bd89de8695a5ea5e1a7f01f02a8 < 496af9d3682ed4c28fb734342a09e6cc0c056ea4affected
LinuxLinuxa79af8a64d395bd89de8695a5ea5e1a7f01f02a8 < 6abd4698f4c8a78e7bbfc421205c060c199554a0affected
LinuxLinuxa79af8a64d395bd89de8695a5ea5e1a7f01f02a8 < d4d765f4761f9e3a2d62992f825aeee593bcb6b9affected
LinuxLinuxa79af8a64d395bd89de8695a5ea5e1a7f01f02a8 < 9758ffe1c07b86aefd7ca8e40d9a461293427ca0affected
LinuxLinuxa79af8a64d395bd89de8695a5ea5e1a7f01f02a8 < 0aaabdb900c7415caa2006ef580322f7eac5f6b6affected
LinuxLinuxa79af8a64d395bd89de8695a5ea5e1a7f01f02a8 < 61e43ebfd243bcbad11be26bd921723027b77441affected
LinuxLinuxa79af8a64d395bd89de8695a5ea5e1a7f01f02a8 < f484a794e4ee2a9ce61f52a78e810ac45f3fe3b3affected
LinuxLinux2.6.39affected
LinuxLinux0 < 2.6.39unaffected
LinuxLinux4.14.306 <= 4.14.*unaffected
LinuxLinux4.19.273 <= 4.19.*unaffected
LinuxLinux5.4.232 <= 5.4.*unaffected
LinuxLinux5.10.168 <= 5.10.*unaffected
LinuxLinux5.15.93 <= 5.15.*unaffected
LinuxLinux6.1.11 <= 6.1.*unaffected
LinuxLinux6.2 <= *unaffected

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

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

References