CVE-2023-52893— gsmi: fix null-deref in gsmi_get_variable
Possible ATT&CK Techniques 1AI
T1044Affected Version Matrix 16
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 74c5b31c6618f01079212332b2e5f6c42f2d6307< ee5763ef829bd923033510de6d1df7c73f085e4b | affected |
74c5b31c6618f01079212332b2e5f6c42f2d6307< 32313c11bdc8a02c577abaf865be3664ab30410a | affected | ||
74c5b31c6618f01079212332b2e5f6c42f2d6307< ffef77794fb5f1245c3249b86342bad2299accb5 | affected | ||
74c5b31c6618f01079212332b2e5f6c42f2d6307< ae2a9dcc8caa60b1e14671294e5ec902ea5d1dfd | affected | ||
74c5b31c6618f01079212332b2e5f6c42f2d6307< eb0421d90f916dffe96b4c049ddf01c0c50620d2 | affected | ||
74c5b31c6618f01079212332b2e5f6c42f2d6307< 6646d769fdb0ce4318ef9afd127f8526d1ca8393 | affected | ||
74c5b31c6618f01079212332b2e5f6c42f2d6307< a769b05eeed7accc4019a1ed9799dd72067f1ce8 | affected | ||
3.0 | affected | ||
| … +8 more rows | |||
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I. Basic Information for CVE-2023-52893
Vulnerability Information
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Vulnerability Title
gsmi: fix null-deref in gsmi_get_variable
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: gsmi: fix null-deref in gsmi_get_variable We can get EFI variables without fetching the attribute, so we must allow for that in gsmi. commit 859748255b43 ("efi: pstore: Omit efivars caching EFI varstore access layer") added a new get_variable call with attr=NULL, which triggers panic in gsmi.
Source: CVE Program / CVE List V5
CVSS Information
N/A
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 gsmi 组件在获取EFI变量时存在空指针解引用问题。
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
II. Public POCs for CVE-2023-52893
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POCPremium
No public POC found.
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Other References for CVE-2023-52893 (7)
Same Patch Batch · Linux · 2024-08-21 · 68 CVEs total
| CVE-2023-52910 | 8.8 HIGH | iommu/iova: Fix alloc iova overflows issue |
| CVE-2024-43881 | 8.8 HIGH | wifi: ath12k: change DMA direction while mapping reinjected packets |
| CVE-2022-48871 | 8.8 HIGH | tty: serial: qcom-geni-serial: fix slab-out-of-bounds on RX FIFO buffer |
| CVE-2024-43878 | 8.1 HIGH | xfrm: Fix input error path memory access |
| CVE-2022-48883 | 7.8 HIGH | net/mlx5e: IPoIB, Block PKEY interfaces with less rx queues than parent |
| CVE-2024-43882 | 7.8 HIGH | exec: Fix ToCToU between perm check and set-uid/gid usage |
| CVE-2023-52913 | 7.8 HIGH | drm/i915: Fix potential context UAFs |
| CVE-2022-48892 | 7.8 HIGH | sched/core: Fix use-after-free bug in dup_user_cpus_ptr() |
| CVE-2024-43877 | 7.8 HIGH | media: pci: ivtv: Add check for DMA map result |
| CVE-2024-43880 | 7.8 HIGH | mlxsw: spectrum_acl_erp: Fix object nesting warning |
| CVE-2022-48899 | 7.8 HIGH | drm/virtio: Fix GEM handle creation UAF |
| CVE-2022-48872 | 7.8 HIGH | misc: fastrpc: Fix use-after-free race condition for maps |
| CVE-2022-48873 | 7.8 HIGH | misc: fastrpc: Don't remove map on creater_process and device_release |
| CVE-2022-48874 | 7.8 HIGH | misc: fastrpc: Fix use-after-free and race in fastrpc_map_find |
| CVE-2023-52903 | 7.8 HIGH | io_uring: lock overflowing for IOPOLL |
| CVE-2022-48887 | 7.8 HIGH | drm/vmwgfx: Remove rcu locks from user resources |
| CVE-2022-48878 | 7.8 HIGH | Bluetooth: hci_qca: Fix driver shutdown on closed serdev |
| CVE-2023-52907 | 7.8 HIGH | nfc: pn533: Wait for out_urb's completion in pn533_usb_send_frame() |
| CVE-2023-52909 | 7.5 HIGH | nfsd: fix handling of cached open files in nfsd4_open codepath |
| CVE-2024-43872 | 7.5 HIGH | RDMA/hns: Fix soft lockup under heavy CEQE load |
Showing top 20 of 68 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Linux
- CVE-2026-74578
crypto: algif_skcipher - force synchronous processing on tre - CVE-2026-74577
net: mpls: initialize rtm_tos in mpls_getroute() - CVE-2026-74576
mm/slab: prevent unbounded recursion in free path with new k - CVE-2026-74574
dmaengine: idxd: fix fdev setup failure cleanup in idxd_cdev - CVE-2026-74575
thunderbolt: Prevent XDomain delayed work use-after-free on
Same vendor: Linux
- CVE-2026-74578
crypto: algif_skcipher - force synchronous processing on tre - CVE-2026-74577
net: mpls: initialize rtm_tos in mpls_getroute() - CVE-2026-74576
mm/slab: prevent unbounded recursion in free path with new k - CVE-2026-74574
dmaengine: idxd: fix fdev setup failure cleanup in idxd_cdev - CVE-2026-74575
thunderbolt: Prevent XDomain delayed work use-after-free on
V. Comments for CVE-2023-52893
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