CVE-2023-52974
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…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.29%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.29% probability · 22th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-416
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/0aaabdb900c7415caa2006ef580322f7eac5f6b6Patch
- https://git.kernel.org/stable/c/496af9d3682ed4c28fb734342a09e6cc0c056ea4Patch
- https://git.kernel.org/stable/c/61e43ebfd243bcbad11be26bd921723027b77441Patch
- https://git.kernel.org/stable/c/6abd4698f4c8a78e7bbfc421205c060c199554a0Patch
- https://git.kernel.org/stable/c/9758ffe1c07b86aefd7ca8e40d9a461293427ca0Patch
- https://git.kernel.org/stable/c/d4d765f4761f9e3a2d62992f825aeee593bcb6b9Patch
- https://git.kernel.org/stable/c/f484a794e4ee2a9ce61f52a78e810ac45f3fe3b3Patch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.