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CVE-2023-52503— tee: amdtee: fix use-after-free vulnerability in amdtee_close_session

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于内存释放后重用。

CVSS 7.8 · High EPSS 0.26% · P16

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution

Affected Version Matrix 12

VendorProduct Version RangeStatus
Linux Linux 757cc3e9ff1d72d014096399d6e2bf03974d9da1< da7ce52a2f6c468946195b116615297d3d113a27 affected
757cc3e9ff1d72d014096399d6e2bf03974d9da1< 1680c82929bc14d706065f123dab77f2f1293116 affected
757cc3e9ff1d72d014096399d6e2bf03974d9da1< 60c3e7a00db954947c265b55099c21b216f2a05c affected
757cc3e9ff1d72d014096399d6e2bf03974d9da1< 1c95574350cd63bc3c5c2fa06658010768f2a0ce affected
757cc3e9ff1d72d014096399d6e2bf03974d9da1< f4384b3e54ea813868bb81a861bf5b2406e15d8f affected
5.6 affected
< 5.6 unaffected
5.10.199≤ 5.10.* unaffected
… +4 more rows
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I. Basic Information for CVE-2023-52503

Vulnerability Information
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Vulnerability Title
tee: amdtee: fix use-after-free vulnerability in amdtee_close_session
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: tee: amdtee: fix use-after-free vulnerability in amdtee_close_session There is a potential race condition in amdtee_close_session that may cause use-after-free in amdtee_open_session. For instance, if a session has refcount == 1, and one thread tries to free this session via: kref_put(&sess->refcount, destroy_session); the reference count will get decremented, and the next step would be to call destroy_session(). However, if in another thread, amdtee_open_session() is called before destroy_session() has completed execution, alloc_session() may return 'sess' that will be freed up later in destroy_session() leading to use-after-free in amdtee_open_session. To fix this issue, treat decrement of sess->refcount and removal of 'sess' from session list in destroy_session() as a critical section, so that it is executed atomically.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于内存释放后重用。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux 757cc3e9ff1d72d014096399d6e2bf03974d9da1 ~ da7ce52a2f6c468946195b116615297d3d113a27 -
Linux Linux 5.6 -

II. Public POCs for CVE-2023-52503

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III. Intelligence Information for CVE-2023-52503

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Other References for CVE-2023-52503 (5)

Same Patch Batch · Linux · 2024-03-02 · 57 CVEs total

CVE-2023-52515 9.8 CRITICAL RDMA/srp: Do not call scsi_done() from srp_abort()
CVE-2023-52530 8.8 HIGH wifi: mac80211: fix potential key use-after-free
CVE-2023-52522 8.8 HIGH net: fix possible store tearing in neigh_periodic_work()
CVE-2023-52502 8.8 HIGH net: nfc: fix races in nfc_llcp_sock_get() and nfc_llcp_sock_get_sn()
CVE-2024-26621 8.2 HIGH mm: huge_memory: don't force huge page alignment on 32 bit
CVE-2023-52572 7.8 HIGH cifs: Fix UAF in cifs_demultiplex_thread()
CVE-2023-52574 7.8 HIGH team: fix null-ptr-deref when team device type is changed
CVE-2023-52509 7.8 HIGH ravb: Fix use-after-free issue in ravb_tx_timeout_work()
CVE-2023-52517 7.8 HIGH spi: sun6i: fix race between DMA RX transfer completion and RX FIFO drain
CVE-2023-52523 7.8 HIGH bpf, sockmap: Reject sk_msg egress redirects to non-TCP sockets
CVE-2023-52513 7.5 HIGH RDMA/siw: Fix connection failure handling
CVE-2023-52565 7.1 HIGH media: uvcvideo: Fix OOB read
CVE-2023-52561 arm64: dts: qcom: sdm845-db845c: Mark cont splash memory region as reserved
CVE-2023-52581 netfilter: nf_tables: fix memleak when more than 255 elements expired
CVE-2023-52564 Revert "tty: n_gsm: fix UAF in gsm_cleanup_mux"
CVE-2023-52563 drm/meson: fix memory leak on ->hpd_notify callback
CVE-2023-52562 mm/slab_common: fix slab_caches list corruption after kmem_cache_destroy()
CVE-2022-48627 vt: fix memory overlapping when deleting chars in the buffer
CVE-2023-52518 Bluetooth: hci_codec: Fix leaking content of local_codecs
CVE-2023-52559 iommu/vt-d: Avoid memory allocation in iommu_suspend()

Showing top 20 of 57 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2023-52503

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