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CVE-2022-49015— net: hsr: Fix potential 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。 Linux kernel存在安全漏洞，该漏洞源于在hsr协议中skb可能在使用后被释放，导致释放后重用错误。

CVSS 8.8 · High EPSS 0.35% · P27

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux f421436a591d34fa5279b54a96ac07d70250cc8d< 8393ce5040803666bfa26a3a7bf41e44fab0ace9 affected
f421436a591d34fa5279b54a96ac07d70250cc8d< 4b351609af4fdbc23f79ab2b12748f4403ea9af4 affected
f421436a591d34fa5279b54a96ac07d70250cc8d< b35d899854d5d5d58eb7d7e7c0f61afc60d3a9e9 affected
f421436a591d34fa5279b54a96ac07d70250cc8d< 53a62c5efe91665f7a41fad0f888a96f94dc59eb affected
f421436a591d34fa5279b54a96ac07d70250cc8d< 7ca81a161e406834a1fdc405fc83a572bd14b8d9 affected
f421436a591d34fa5279b54a96ac07d70250cc8d< dca370e575d9b6c983f5015e8dc035e23e219ee6 affected
f421436a591d34fa5279b54a96ac07d70250cc8d< f3add2b8cf620966de3ebfa07679ca12d33ec26f affected
f421436a591d34fa5279b54a96ac07d70250cc8d< 7e177d32442b7ed08a9fa61b61724abc548cb248 affected
… +10 more rows
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I. Basic Information for CVE-2022-49015

Vulnerability Information
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Vulnerability Title
net: hsr: Fix potential use-after-free
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: net: hsr: Fix potential use-after-free The skb is delivered to netif_rx() which may free it, after calling this, dereferencing skb may trigger use-after-free.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:N/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，该漏洞源于在hsr协议中skb可能在使用后被释放，导致释放后重用错误。
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 f421436a591d34fa5279b54a96ac07d70250cc8d ~ 8393ce5040803666bfa26a3a7bf41e44fab0ace9 -
Linux Linux 3.13 -

II. Public POCs for CVE-2022-49015

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III. Intelligence Information for CVE-2022-49015

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Patches & Fixes for CVE-2022-49015 (4)

Same Patch Batch · Linux · 2024-10-21 · 372 CVEs total

CVE-2024-49855 9.8 CRITICAL nbd: fix race between timeout and normal completion
CVE-2024-50033 9.8 CRITICAL slip: make slhc_remember() more robust against malicious packets
CVE-2024-50043 9.8 CRITICAL nfsd: fix possible badness in FREE_STATEID
CVE-2024-50047 9.8 CRITICAL smb: client: fix UAF in async decryption
CVE-2024-50046 9.8 CRITICAL NFSv4: Prevent NULL-pointer dereference in nfs42_complete_copies()
CVE-2024-47695 9.8 CRITICAL RDMA/rtrs-clt: Reset cid to con_num - 1 to stay in bounds
CVE-2022-48985 9.8 CRITICAL net: mana: Fix race on per-CQ variable napi work_done
CVE-2022-49003 9.8 CRITICAL nvme: fix SRCU protection of nvme_ns_head list
CVE-2024-49996 9.4 CRITICAL cifs: Fix buffer overflow when parsing NFS reparse points
CVE-2024-47678 9.4 CRITICAL icmp: change the order of rate limits
CVE-2024-49936 8.8 HIGH net/xen-netback: prevent UAF in xenvif_flush_hash()
CVE-2022-48964 8.8 HIGH ravb: Fix potential use-after-free in ravb_rx_gbeth()
CVE-2022-48962 8.8 HIGH net: hisilicon: Fix potential use-after-free in hisi_femac_rx()
CVE-2022-48954 8.8 HIGH s390/qeth: fix use-after-free in hsci
CVE-2024-50029 8.8 HIGH Bluetooth: hci_conn: Fix UAF in hci_enhanced_setup_sync
CVE-2024-49930 8.8 HIGH wifi: ath11k: fix array out-of-bound access in SoC stats
CVE-2024-50041 8.8 HIGH i40e: Fix macvlan leak by synchronizing access to mac_filter_hash
CVE-2024-49950 8.8 HIGH Bluetooth: L2CAP: Fix uaf in l2cap_connect
CVE-2024-49939 8.8 HIGH wifi: rtw89: avoid to add interface to list twice when SER
CVE-2022-48960 8.8 HIGH net: hisilicon: Fix potential use-after-free in hix5hd2_rx()

Showing top 20 of 372 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2022-49015

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