• 公告ID (KylinSec-SA-2022-2423)

摘要:

An issue was discovered in the Linux kernel before 4.20.15. The nfc_llcp_build_tlv function in net/nfc/llcp_commands.c may return NULL. If the caller does not check for this, it will trigger a NULL pointer dereference. This will cause denial of service. This affects nfc_llcp_build_gb in net/nfc/llcp_core.c.

安全等级: Low

公告ID: KylinSec-SA-2022-2423

发布日期: 2022年9月30日

关联CVE: CVE-2019-12818  

  • 详细介绍

1. 漏洞描述

   

An issue was discovered in the Linux kernel before 4.20.15. The nfc_llcp_build_tlv function in net/nfc/llcp_commands.c may return NULL. If the caller does not check for this, it will trigger a NULL pointer dereference. This will cause denial of service. This affects nfc_llcp_build_gb in net/nfc/llcp_core.c.

2. 影响范围

cve名称 产品 组件 是否受影响
CVE-2019-12818 KY3.4-4A kernel Unaffected
CVE-2019-12818 KY3.4-5 kernel Unaffected
CVE-2019-12818 KY3.5.1 kernel Unaffected

3. 影响组件

    无

4. 修复版本

    无

5. 修复方法

   无

6. 下载链接

    无
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