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CVE-2022-48879— efi: fix NULL-deref in init error path

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 efi 组件在初始化错误路径中存在空指针解引用问题。

AI Predicted 3.3 Difficulty: Theoretical EPSS 0.24% · P15

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation

Affected Version Matrix 20

VendorProduct Version RangeStatus
Linux Linux 2ff3c97b47521d6700cc6485c7935908dcd2c27c< 585a0b2b3ae7903c6abee3087d09c69e955a7794 affected
5167f194da6947e19a3e970485ee3ccb44f7958d< 5fcf75a8a4c3e7ee9122d143684083c9faf20452 affected
98086df8b70c06234a8f4290c46064e44dafa0ed< 4ca71bc0e1995d15486cd7b60845602a28399cb5 affected
98086df8b70c06234a8f4290c46064e44dafa0ed< e2ea55564229e4bea1474af15b111b3a3043b76f affected
98086df8b70c06234a8f4290c46064e44dafa0ed< adc96d30f6503d30dc68670c013716f1d9fcc747 affected
98086df8b70c06234a8f4290c46064e44dafa0ed< 703c13fe3c9af557d312f5895ed6a5fda2711104 affected
f591a42b8f9a9d20e01d0462f4f55d2176ac52ec affected
e6584124b9823151ef586d10dedf565ade50cea6 affected
… +12 more rows
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I. Basic Information for CVE-2022-48879

Vulnerability Information
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Vulnerability Title
efi: fix NULL-deref in init error path
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: efi: fix NULL-deref in init error path In cases where runtime services are not supported or have been disabled, the runtime services workqueue will never have been allocated. Do not try to destroy the workqueue unconditionally in the unlikely event that EFI initialisation fails to avoid dereferencing a NULL pointer.
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 efi 组件在初始化错误路径中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

Vendor Product Affected Versions CPE Subscribe
Linux Linux 2ff3c97b47521d6700cc6485c7935908dcd2c27c ~ 585a0b2b3ae7903c6abee3087d09c69e955a7794 -
Linux Linux 5.9 -

II. Public POCs for CVE-2022-48879

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III. Intelligence Information for CVE-2022-48879

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Other References for CVE-2022-48879 (6)

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-2023-52913 7.8 HIGH drm/i915: Fix potential context UAFs
CVE-2024-43880 7.8 HIGH mlxsw: spectrum_acl_erp: Fix object nesting warning
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-2024-43882 7.8 HIGH exec: Fix ToCToU between perm check and set-uid/gid usage
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-2022-48878 7.8 HIGH Bluetooth: hci_qca: Fix driver shutdown on closed serdev
CVE-2022-48887 7.8 HIGH drm/vmwgfx: Remove rcu locks from user resources
CVE-2023-52907 7.8 HIGH nfc: pn533: Wait for out_urb's completion in pn533_usb_send_frame()
CVE-2024-43872 7.5 HIGH RDMA/hns: Fix soft lockup under heavy CEQE load
CVE-2023-52909 7.5 HIGH nfsd: fix handling of cached open files in nfsd4_open codepath

Showing top 20 of 68 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2022-48879

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