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CVE-2023-52686— powerpc/powernv: Add a null pointer check in opal_event_init()

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，该漏洞源于在 opal_event_init函数中缺少空指针检查。

AI Predicted 5.5 Difficulty: Theoretical EPSS 0.25% · P17

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux 2717a33d60745f2f72e521cdaedf79b00f66f8ca< 8422d179cf46889c15ceff9ede48c5bfa4e7f0b4 affected
2717a33d60745f2f72e521cdaedf79b00f66f8ca< e93d7cf4c1ddbcd846739e7ad849f955a4f18031 affected
2717a33d60745f2f72e521cdaedf79b00f66f8ca< e6ad05e3ae9c84c5a71d7bb2d44dc845ae7990cf affected
2717a33d60745f2f72e521cdaedf79b00f66f8ca< c0b111ea786ddcc8be0682612830796ece9436c7 affected
2717a33d60745f2f72e521cdaedf79b00f66f8ca< 9a523e1da6d88c2034f946adfa4f74b236c95ca9 affected
2717a33d60745f2f72e521cdaedf79b00f66f8ca< a14c55eb461d630b836f80591d8caf1f74e62877 affected
2717a33d60745f2f72e521cdaedf79b00f66f8ca< e08c2e275fa1874de945b87093f925997722ee42 affected
2717a33d60745f2f72e521cdaedf79b00f66f8ca< 8649829a1dd25199bbf557b2621cedb4bf9b3050 affected
… +10 more rows
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I. Basic Information for CVE-2023-52686

Vulnerability Information
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Vulnerability Title
powerpc/powernv: Add a null pointer check in opal_event_init()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: powerpc/powernv: Add a null pointer check in opal_event_init() kasprintf() returns a pointer to dynamically allocated memory which can be NULL upon failure.
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，该漏洞源于在 opal_event_init函数中缺少空指针检查。
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 2717a33d60745f2f72e521cdaedf79b00f66f8ca ~ 8422d179cf46889c15ceff9ede48c5bfa4e7f0b4 -
Linux Linux 4.11 -

II. Public POCs for CVE-2023-52686

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III. Intelligence Information for CVE-2023-52686

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Mailing List Discussions for CVE-2023-52686 (1)

Other References for CVE-2023-52686 (7)

Same Patch Batch · Linux · 2024-05-17 · 135 CVEs total

CVE-2023-52687 9.8 CRITICAL crypto: safexcel - Add error handling for dma_map_sg() calls
CVE-2024-35843 8.8 HIGH iommu/vt-d: Use device rbtree in iopf reporting path
CVE-2024-35804 8.8 HIGH KVM: x86: Mark target gfn of emulated atomic instruction as dirty
CVE-2024-35811 8.8 HIGH wifi: brcmfmac: Fix use-after-free bug in brcmf_cfg80211_detach
CVE-2024-27416 8.8 HIGH Bluetooth: hci_event: Fix handling of HCI_EV_IO_CAPA_REQUEST
CVE-2024-27415 8.8 HIGH netfilter: bridge: confirm multicast packets before passing them up the stack
CVE-2024-35856 8.8 HIGH Bluetooth: btusb: mediatek: Fix double free of skb in coredump
CVE-2024-35834 8.2 HIGH xsk: recycle buffer in case Rx queue was full
CVE-2024-27404 8.2 HIGH mptcp: fix data races on remote_id
CVE-2023-52669 8.2 HIGH crypto: s390/aes - Fix buffer overread in CTR mode
CVE-2024-35789 8.0 HIGH wifi: mac80211: check/clear fast rx for non-4addr sta VLAN changes
CVE-2024-35793 7.8 HIGH debugfs: fix wait/cancellation handling during remove
CVE-2023-52664 7.8 HIGH net: atlantic: eliminate double free in error handling logic
CVE-2024-35810 7.8 HIGH drm/vmwgfx: Fix the lifetime of the bo cursor memory
CVE-2024-35808 7.8 HIGH md/dm-raid: don't call md_reap_sync_thread() directly
CVE-2023-52667 7.8 HIGH net/mlx5e: fix a potential double-free in fs_any_create_groups
CVE-2024-35798 7.8 HIGH btrfs: fix race in read_extent_buffer_pages()
CVE-2024-35791 7.8 HIGH KVM: SVM: Flush pages under kvm->lock to fix UAF in svm_register_enc_region()
CVE-2024-35839 7.8 HIGH netfilter: bridge: replace physindev with physinif in nf_bridge_info
CVE-2024-35835 7.8 HIGH net/mlx5e: fix a double-free in arfs_create_groups

Showing top 20 of 135 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2023-52686

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