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CVE-2022-48786— vsock: remove vsock from connected table when connect is interrupted by a signal

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vsock模块当连接被信号中断时，没有从连接表中删除vsock，导致列表损坏。

CVSS 7.8 · High EPSS 0.25% · P16

Possible ATT&CK Techniques 1 AI

T1077

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux d021c344051af91f42c5ba9fdedc176740cbd238< 0bb88f3f7e8d506f3efe46d694964117e20efbfc affected
d021c344051af91f42c5ba9fdedc176740cbd238< e3b3939fd137aab6d00d54bee0ee9244b286a608 affected
d021c344051af91f42c5ba9fdedc176740cbd238< 2910bcb9f67551a45397735e47b6d456eb8cd549 affected
d021c344051af91f42c5ba9fdedc176740cbd238< 5f326fe2aef411a6575628f92bd861463ea91df7 affected
d021c344051af91f42c5ba9fdedc176740cbd238< 87cd1bbd6677411e17369cd4b7389ab1e1fdba44 affected
d021c344051af91f42c5ba9fdedc176740cbd238< 787468ee7a435777521d33399d012fd591ae2f94 affected
d021c344051af91f42c5ba9fdedc176740cbd238< addd62a8cb6fa90aa322365c62487da61f6baab8 affected
d021c344051af91f42c5ba9fdedc176740cbd238< b9208492fcaecff8f43915529ae34b3bcb03877c affected
… +10 more rows
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I. Basic Information for CVE-2022-48786

Vulnerability Information
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Vulnerability Title
vsock: remove vsock from connected table when connect is interrupted by a signal
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: vsock: remove vsock from connected table when connect is interrupted by a signal vsock_connect() expects that the socket could already be in the TCP_ESTABLISHED state when the connecting task wakes up with a signal pending. If this happens the socket will be in the connected table, and it is not removed when the socket state is reset. In this situation it's common for the process to retry connect(), and if the connection is successful the socket will be added to the connected table a second time, corrupting the list. Prevent this by calling vsock_remove_connected() if a signal is received while waiting for a connection. This is harmless if the socket is not in the connected table, and if it is in the table then removing it will prevent list corruption from a double add. Note for backporting: this patch requires d5afa82c977e ("vsock: correct removal of socket from the list"), which is in all current stable trees except 4.9.y.
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vsock模块当连接被信号中断时，没有从连接表中删除vsock，导致列表损坏。
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 d021c344051af91f42c5ba9fdedc176740cbd238 ~ 0bb88f3f7e8d506f3efe46d694964117e20efbfc -
Linux Linux 3.9 -

II. Public POCs for CVE-2022-48786

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III. Intelligence Information for CVE-2022-48786

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Other References for CVE-2022-48786 (8)

Same Patch Batch · Linux · 2024-07-16 · 98 CVEs total

CVE-2022-48790 9.8 CRITICAL nvme: fix a possible use-after-free in controller reset during load
CVE-2022-48851 9.8 CRITICAL staging: gdm724x: fix use after free in gdm_lte_rx()
CVE-2022-48788 9.8 CRITICAL nvme-rdma: fix possible use-after-free in transport error_recovery work
CVE-2022-48789 9.8 CRITICAL nvme-tcp: fix possible use-after-free in transport error_recovery work
CVE-2022-48828 9.1 CRITICAL NFSD: Fix ia_size underflow
CVE-2022-48829 9.1 CRITICAL NFSD: Fix NFSv3 SETATTR/CREATE's handling of large file sizes
CVE-2022-48864 8.8 HIGH vdpa/mlx5: add validation for VIRTIO_NET_CTRL_MQ_VQ_PAIRS_SET command
CVE-2022-48830 8.8 HIGH can: isotp: fix potential CAN frame reception race in isotp_rcv()
CVE-2022-48782 8.8 HIGH mctp: fix use after free
CVE-2022-48785 8.8 HIGH ipv6: mcast: use rcu-safe version of ipv6_get_lladdr()
CVE-2022-48787 7.8 HIGH iwlwifi: fix use-after-free
CVE-2022-48792 7.8 HIGH scsi: pm8001: Fix use-after-free for aborted SSP/STP sas_task
CVE-2022-48791 7.8 HIGH scsi: pm8001: Fix use-after-free for aborted TMF sas_task
CVE-2022-48816 7.8 HIGH SUNRPC: lock against ->sock changing during sysfs read
CVE-2022-48796 7.8 HIGH iommu: Fix potential use-after-free during probe
CVE-2022-48839 7.8 HIGH net/packet: fix slab-out-of-bounds access in packet_recvmsg()
CVE-2022-48822 7.8 HIGH usb: f_fs: Fix use-after-free for epfile
CVE-2022-48821 7.8 HIGH misc: fastrpc: avoid double fput() on failed usercopy
CVE-2022-48801 7.8 HIGH iio: buffer: Fix file related error handling in IIO_BUFFER_GET_FD_IOCTL
CVE-2024-41008 7.8 HIGH drm/amdgpu: change vm->task_info handling

Showing top 20 of 98 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

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