CVE-2022-50656
Vulnerability Scoring
Analysis In Progress
CVE-2022-50656 Vulnerability Analysis & Exploit Details
CVE-2022-50656
Attack Complexity Details
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Attack Complexity:
Attack Complexity Analysis In Progress
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Attack Vector:
Attack Vector Under Analysis
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Privileges Required:
None
No authentication is required for exploitation.
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Scope:
Impact is confined to the initially vulnerable component.
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User Interaction:
None
No user interaction is necessary for exploitation.
CVE-2022-50656 Details
Status: Awaiting Analysis
Published on: 09 Dec 2025, 01:16 UTC
CVSS Release:
CVE-2022-50656 Vulnerability Summary
CVE-2022-50656: In the Linux kernel, the following vulnerability has been resolved: nfc: pn533: Clear nfc_target before being used Fix a slab-out-of-bounds read that occurs in nla_put() called from nfc_genl_send_target() when target->sensb_res_len, which is duplicated from an nfc_target in pn533, is too large as the nfc_target is not properly initialized and retains garbage values. Clear nfc_targets with memset() before they are used. Found by a modified version of syzkaller. BUG: KASAN: slab-out-of-bounds in nla_put Call Trace: memcpy nla_put nfc_genl_dump_targets genl_lock_dumpit netlink_dump __netlink_dump_start genl_family_rcv_msg_dumpit genl_rcv_msg netlink_rcv_skb genl_rcv netlink_unicast netlink_sendmsg sock_sendmsg ____sys_sendmsg ___sys_sendmsg __sys_sendmsg do_syscall_64
Assessing the Risk of CVE-2022-50656
Access Complexity Graph
The exploitability of CVE-2022-50656 depends on two key factors: attack complexity (the level of effort required to execute an exploit) and privileges required (the access level an attacker needs).
Exploitability Analysis for CVE-2022-50656
No exploitability data is available for CVE-2022-50656.
Understanding AC and PR
A lower complexity and fewer privilege requirements make exploitation easier. Security teams should evaluate these aspects to determine the urgency of mitigation strategies, such as patch management and access control policies.
Attack Complexity (AC) measures the difficulty in executing an exploit. A high AC means that specific conditions must be met, making an attack more challenging, while a low AC means the vulnerability can be exploited with minimal effort.
Privileges Required (PR) determine the level of system access necessary for an attack. Vulnerabilities requiring no privileges are more accessible to attackers, whereas high privilege requirements limit exploitation to authorized users with elevated access.
CVSS Score Breakdown Chart
Above is the CVSS Sub-score Breakdown for CVE-2022-50656, illustrating how Base, Impact, and Exploitability factors combine to form the overall severity rating. A higher sub-score typically indicates a more severe or easier-to-exploit vulnerability.
CIA Impact Analysis
Below is the Impact Analysis for CVE-2022-50656, showing how Confidentiality, Integrity, and Availability might be affected if the vulnerability is exploited. Higher values usually signal greater potential damage.
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Confidentiality:
None
CVE-2022-50656 does not compromise confidentiality.
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Integrity:
None
CVE-2022-50656 does not impact data integrity.
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Availability:
None
CVE-2022-50656 does not affect system availability.
CVE-2022-50656 References
External References
- https://git.kernel.org/stable/c/61a7e15d55fae329a245535c3bac494e401005b8
- https://git.kernel.org/stable/c/755019e37815a66bb0a23893debbd3dd640ccbd3
- https://git.kernel.org/stable/c/8bddef54cbe9ede5ac7478f1e1e968fcfe7e6f03
- https://git.kernel.org/stable/c/9da4a0411f3455e3885831d0758bee3e3d565bbc
- https://git.kernel.org/stable/c/9f28157778ede0d4f183f7ab3b46995bb400abbe
- https://git.kernel.org/stable/c/aae9c24ebd901f482e6c88b6f9e0c80dc5b536d6
- https://git.kernel.org/stable/c/aea9e64dec2cc6cd742e07ecd4e6236fc76b389b
- https://git.kernel.org/stable/c/bef2f478513e7367ef3b05441f6afca981de29be
- https://git.kernel.org/stable/c/e491285b4d08884b622638be8e4961eb43b0af64
CWE Common Weakness Enumeration
Unknown
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