CVE-2023-52480
9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved:
ksmbd: fix race condition between session lookup and expire
Thread A + Thread B ksmbd_session_lookup | smb2_sess_setup sess = xa_load | | | xa_erase(&conn->sessions, sess->id); | | ksmbd_session_destroy(sess) –> kfree(sess) | // UAF! | sess->last_active = jiffies | +
This patch add rwsem to fix race condition between ksmbd_session_lookup and ksmbd_expire_session.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | a6a9601ba995d0fec635324cb9fd8d14f9bea14e < c77fd3e25a51ac92b0f1b347a96eff6a0b4f066f | affected |
| Linux | Linux | 1fc8a2b14ef5223f8e0b95faba2ee0a6e4d0f99d < a2ca5fd3dbcc665e1169044fa0c9e3eba779202b | affected |
| Linux | Linux | ea174a91893956450510945a0c5d1a10b5323656 < 18ced78b0ebccc2d16f426143dc56ab3aad666be | affected |
| Linux | Linux | ea174a91893956450510945a0c5d1a10b5323656 < 53ff5cf89142b978b1a5ca8dc4d4425e6a09745f | affected |
| Linux | Linux | 750a2d772e9d9ff377fd32e3b6797bf2cd847a7a | affected |
| Linux | Linux | 6775ee7ef4b37c521aa4cf3730f54554c4875542 | affected |
| Linux | Linux | 6.1.29 < 6.1.57 | affected |
| Linux | Linux | 6.2.16 < 6.3 | affected |
| Linux | Linux | 6.3.2 < 6.4 | affected |
| Linux | Linux | 6.4 | affected |
| Linux | Linux | 0 < 6.4 | unaffected |
| Linux | Linux | 6.1.57 <= 6.1.* | unaffected |
| Linux | Linux | 6.5.7 <= 6.5.* | unaffected |
| Linux | Linux | 6.6 <= * | unaffected |
Weaknesses
ADP Enrichment
CVE Program Container
Additional References
- https://git.kernel.org/stable/c/c77fd3e25a51ac92b0f1b347a96eff6a0b4f066f
- https://git.kernel.org/stable/c/a2ca5fd3dbcc665e1169044fa0c9e3eba779202b
- https://git.kernel.org/stable/c/18ced78b0ebccc2d16f426143dc56ab3aad666be
- https://git.kernel.org/stable/c/53ff5cf89142b978b1a5ca8dc4d4425e6a09745f
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: partial
References
- https://git.kernel.org/stable/c/c77fd3e25a51ac92b0f1b347a96eff6a0b4f066f
- https://git.kernel.org/stable/c/a2ca5fd3dbcc665e1169044fa0c9e3eba779202b
- https://git.kernel.org/stable/c/18ced78b0ebccc2d16f426143dc56ab3aad666be
- https://git.kernel.org/stable/c/53ff5cf89142b978b1a5ca8dc4d4425e6a09745f
Feedback
Was this page helpful?
Glad to hear it! Please tell us how we can improve.
Sorry to hear that. Please tell us how we can improve.