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CVE-2022-48757— net: fix information leakage in /proc/net/ptype

EPSS 0.01% · P2
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I. Basic Information for CVE-2022-48757

Vulnerability Information
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Vulnerability Title
net: fix information leakage in /proc/net/ptype
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: net: fix information leakage in /proc/net/ptype In one net namespace, after creating a packet socket without binding it to a device, users in other net namespaces can observe the new `packet_type` added by this packet socket by reading `/proc/net/ptype` file. This is minor information leakage as packet socket is namespace aware. Add a net pointer in `packet_type` to keep the net namespace of of corresponding packet socket. In `ptype_seq_show`, this net pointer must be checked when it is not NULL.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
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 net 模块 /proc/net/ptype 中的信息泄漏。
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

VendorProductAffected VersionsCPESubscribe
LinuxLinux 2feb27dbe00cbb4f7d31f90acf6bd0d751dd0a50 ~ 8f88c78d24f6f346919007cd459fd7e51a8c7779 -
LinuxLinux 2.6.26 -

II. Public POCs for CVE-2022-48757

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III. Intelligence Information for CVE-2022-48757

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Same Patch Batch · Linux · 2024-06-20 · 67 CVEs total

CVE-2022-48750hwmon: (nct6775) Fix crash in clear_caseopen
CVE-2022-48770bpf: Guard against accessing NULL pt_regs in bpf_get_task_stack()
CVE-2022-48768tracing/histogram: Fix a potential memory leak for kstrdup()
CVE-2022-48769efi: runtime: avoid EFIv2 runtime services on Apple x86 machines
CVE-2022-48756drm/msm/dsi: invalid parameter check in msm_dsi_phy_enable
CVE-2022-48755powerpc64/bpf: Limit 'ldbrx' to processors compliant with ISA v2.06
CVE-2022-48754phylib: fix potential use-after-free
CVE-2022-48753block: fix memory leak in disk_register_independent_access_ranges
CVE-2022-48752powerpc/perf: Fix power_pmu_disable to call clear_pmi_irq_pending only if PMI is pending
CVE-2022-48751net/smc: Transitional solution for clcsock race issue
CVE-2022-48758scsi: bnx2fc: Flush destroy_work queue before calling bnx2fc_interface_put()
CVE-2022-48748net: bridge: vlan: fix memory leak in __allowed_ingress
CVE-2022-48749drm/msm/dpu: invalid parameter check in dpu_setup_dspp_pcc
CVE-2022-48747block: Fix wrong offset in bio_truncate()
CVE-2022-48745net/mlx5: Use del_timer_sync in fw reset flow of halting poll
CVE-2022-48746net/mlx5e: Fix handling of wrong devices during bond netevent
CVE-2022-48744net/mlx5e: Avoid field-overflowing memcpy()
CVE-2022-48743net: amd-xgbe: Fix skb data length underflow
CVE-2022-48742rtnetlink: make sure to refresh master_dev/m_ops in __rtnl_newlink()
CVE-2022-48741ovl: fix NULL pointer dereference in copy up warning

Showing top 20 of 67 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

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