一、 漏洞 CVE-2024-50195 基础信息
漏洞标题
Linux内核pc_clock_settime()函数存在安全漏洞
来源:AIGC 神龙大模型
漏洞描述信息
N/A
来源:AIGC 神龙大模型
CVSS信息
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:N
来源:AIGC 神龙大模型
漏洞类别
输入验证不恰当
来源:AIGC 神龙大模型
漏洞标题
posix-clock: Fix missing timespec64 check in pc_clock_settime()
来源:美国国家漏洞数据库 NVD
漏洞描述信息
In the Linux kernel, the following vulnerability has been resolved: posix-clock: Fix missing timespec64 check in pc_clock_settime() As Andrew pointed out, it will make sense that the PTP core checked timespec64 struct's tv_sec and tv_nsec range before calling ptp->info->settime64(). As the man manual of clock_settime() said, if tp.tv_sec is negative or tp.tv_nsec is outside the range [0..999,999,999], it should return EINVAL, which include dynamic clocks which handles PTP clock, and the condition is consistent with timespec64_valid(). As Thomas suggested, timespec64_valid() only check the timespec is valid, but not ensure that the time is in a valid range, so check it ahead using timespec64_valid_strict() in pc_clock_settime() and return -EINVAL if not valid. There are some drivers that use tp->tv_sec and tp->tv_nsec directly to write registers without validity checks and assume that the higher layer has checked it, which is dangerous and will benefit from this, such as hclge_ptp_settime(), igb_ptp_settime_i210(), _rcar_gen4_ptp_settime(), and some drivers can remove the checks of itself.
来源:美国国家漏洞数据库 NVD
CVSS信息
N/A
来源:美国国家漏洞数据库 NVD
漏洞类别
N/A
来源:美国国家漏洞数据库 NVD
漏洞标题
Linux kernel 安全漏洞
来源:中国国家信息安全漏洞库 CNNVD
漏洞描述信息
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timespec64检查缺失。
来源:中国国家信息安全漏洞库 CNNVD
CVSS信息
N/A
来源:中国国家信息安全漏洞库 CNNVD
漏洞类别
其他
来源:中国国家信息安全漏洞库 CNNVD
二、漏洞 CVE-2024-50195 的公开POC
# POC 描述 源链接 神龙链接
三、漏洞 CVE-2024-50195 的情报信息
  • 标题: posix-clock: Fix missing timespec64 check in pc_clock_settime() - kernel/git/stable/linux.git - Linux kernel stable tree -- 🔗来源链接

    标签:

    神龙速读
  • 标题: posix-clock: Fix missing timespec64 check in pc_clock_settime() - kernel/git/stable/linux.git - Linux kernel stable tree -- 🔗来源链接

    标签:

    神龙速读
  • 标题: posix-clock: Fix missing timespec64 check in pc_clock_settime() - kernel/git/stable/linux.git - Linux kernel stable tree -- 🔗来源链接

    标签:

    神龙速读
  • 标题: posix-clock: Fix missing timespec64 check in pc_clock_settime() - kernel/git/stable/linux.git - Linux kernel stable tree -- 🔗来源链接

    标签:

    神龙速读
  • 标题: posix-clock: Fix missing timespec64 check in pc_clock_settime() - kernel/git/stable/linux.git - Linux kernel stable tree -- 🔗来源链接

    标签:

    神龙速读
  • 标题: posix-clock: Fix missing timespec64 check in pc_clock_settime() - kernel/git/stable/linux.git - Linux kernel stable tree -- 🔗来源链接

    标签:

    神龙速读
  • 标题: posix-clock: Fix missing timespec64 check in pc_clock_settime() - kernel/git/stable/linux.git - Linux kernel stable tree -- 🔗来源链接

    标签:

    神龙速读
  • 标题: posix-clock: Fix missing timespec64 check in pc_clock_settime() - kernel/git/stable/linux.git - Linux kernel stable tree -- 🔗来源链接

    标签:

    神龙速读
  • https://nvd.nist.gov/vuln/detail/CVE-2024-50195