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CVE-2022-48911— netfilter: nf_queue: fix possible use-after-free

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。netfilter是一款使用在Linux系统中的数据包过滤框架。 Linux kernel存在安全漏洞，该漏洞源于内存释放后重用。

CVSS 7.8 · High EPSS 0.21% · P11

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux 271b72c7fa82c2c7a795bc16896149933110672d< 21b27b2baa27423286e9b8d3f0b194d587083d95 affected
271b72c7fa82c2c7a795bc16896149933110672d< ef97921ccdc243170fcef857ba2a17cf697aece5 affected
271b72c7fa82c2c7a795bc16896149933110672d< 34dc4a6a7f261736ef7183868a5bddad31c7f9e3 affected
271b72c7fa82c2c7a795bc16896149933110672d< 43c25da41e3091b31a906651a43e80a2719aa1ff affected
271b72c7fa82c2c7a795bc16896149933110672d< 4d05239203fa38ea8a6f31e228460da4cb17a71a affected
271b72c7fa82c2c7a795bc16896149933110672d< dd648bd1b33a828f62befa696b206c688da0ec43 affected
271b72c7fa82c2c7a795bc16896149933110672d< dcc3cb920bf7ba66ac5e9272293a9ba5f80917ee affected
271b72c7fa82c2c7a795bc16896149933110672d< c3873070247d9e3c7a6b0cf9bf9b45e8018427b1 affected
… +10 more rows
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I. Basic Information for CVE-2022-48911

Vulnerability Information
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Vulnerability Title
netfilter: nf_queue: fix possible use-after-free
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_queue: fix possible use-after-free Eric Dumazet says: The sock_hold() side seems suspect, because there is no guarantee that sk_refcnt is not already 0. On failure, we cannot queue the packet and need to indicate an error. The packet will be dropped by the caller. v2: split skb prefetch hunk into separate change
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。netfilter是一款使用在Linux系统中的数据包过滤框架。 Linux kernel存在安全漏洞，该漏洞源于内存释放后重用。
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 271b72c7fa82c2c7a795bc16896149933110672d ~ 21b27b2baa27423286e9b8d3f0b194d587083d95 -
Linux Linux 2.6.29 -

II. Public POCs for CVE-2022-48911

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III. Intelligence Information for CVE-2022-48911

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Other References for CVE-2022-48911 (8)

Same Patch Batch · Linux · 2024-08-22 · 42 CVEs total

CVE-2022-48941 8.8 HIGH ice: fix concurrent reset and removal of VFs
CVE-2022-48919 8.8 HIGH cifs: fix double free race when mount fails in cifs_get_root()
CVE-2022-48925 7.8 HIGH RDMA/cma: Do not change route.addr.src_addr outside state checks
CVE-2022-48923 7.8 HIGH btrfs: prevent copying too big compressed lzo segment
CVE-2022-48927 7.8 HIGH iio: adc: tsc2046: fix memory corruption by preventing array overflow
CVE-2022-48913 7.8 HIGH blktrace: fix use after free for struct blk_trace
CVE-2022-48912 7.8 HIGH netfilter: fix use-after-free in __nf_register_net_hook()
CVE-2022-48932 7.8 HIGH net/mlx5: DR, Fix slab-out-of-bounds in mlx5_cmd_dr_create_fte
CVE-2022-48935 7.8 HIGH netfilter: nf_tables: unregister flowtable hooks on netns exit
CVE-2022-48940 7.8 HIGH bpf: Fix crash due to incorrect copy_map_value
CVE-2022-48943 7.1 HIGH KVM: x86/mmu: make apf token non-zero to fix bug
CVE-2022-48933 netfilter: nf_tables: fix memory leak during stateful obj update
CVE-2022-48934 nfp: flower: Fix a potential leak in nfp_tunnel_add_shared_mac()
CVE-2022-48931 configfs: fix a race in configfs_{,un}register_subsystem()
CVE-2022-48937 io_uring: add a schedule point in io_add_buffers()
CVE-2022-48930 RDMA/ib_srp: Fix a deadlock
CVE-2022-48929 bpf: Fix crash due to out of bounds access into reg2btf_ids.
CVE-2022-48928 iio: adc: men_z188_adc: Fix a resource leak in an error handling path
CVE-2022-48938 CDC-NCM: avoid overflow in sanity checking
CVE-2022-48939 bpf: Add schedule points in batch ops

Showing top 20 of 42 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2022-48911

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