关键漏洞信息 漏洞编号: Bug 1416437 (CVE-2017-5577) 漏洞描述: kernel: vc4: Heap-buffer overflow due to failing checks 报告时间: 2017-01-25 13:34 UTC 状态: CLOSED NOTABUG 产品: Security Response 组件: vulnerability 优先级: Low 严重性: Low 操作系统: Linux 影响版本: 不指定 硬件: All 报告人: Andrej Nemec 详细描述 The vc4_get_bcl function in drivers/gpu/drm/vc4/vc4_gem.c in the VideoCore DRM driver in the Linux kernel before 4.9.7 does not set an errno value upon certain overflow detections, which allows local users to cause a denial of service (incorrect pointer dereference and OOPS) via inconsistent size values in a VC4_SUBMIT_CL ioctl call. 参考链接 http://seclists.org/oss-sec/2017/q1/165 https://lkml.org/lkml/2017/1/17/759 https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=6b8ac63847bc2f958dd93c09edc941a0118992d9 影响范围 Fedora所有版本: bug 1416439 不受影响的产品: This issue does not affect the Linux kernel packages as shipped with Red Hat Enterprise Linux 5, 6, 7 and MRG-2 as the code with the flaw is not present in the products listed.