CVE-2020-10781

01/תיאור (מקור, אנגלית)

A flaw was found in the Linux Kernel before 5.8-rc6 in the ZRAM kernel module, where a user with a local account and the ability to read the /sys/class/zram-control/hot_add file can create ZRAM device nodes in the /dev/ directory. This read allocates kernel memory and is not accounted for a user that triggers the creation of that ZRAM device. With this vulnerability, continually reading the device may consume a large amount of system memory and cause the Out-of-Memory (OOM) killer to activate and terminate random userspace processes, possibly making the system inoperable.

02/מוצרים מושפעים

linux: linux kernel; debian: debian linux

03/קישורים8

• git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/com‮… PatchVendor Advisory
• git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/com‮… PatchVendor Advisory
• www.openwall.com/lists/oss-security/2020/06/18/1 Mailing ListPatchThird Party Advisory
• www.openwall.com/lists/oss-security/2020/06/18/1 Mailing ListPatchThird Party Advisory
• bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-10781 Issue TrackingThird Party Advisory
• lists.debian.org/debian-lts-announce/2020/09/msg00025.html Mailing ListThird Party Advisory
• bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-10781 Issue TrackingThird Party Advisory
• lists.debian.org/debian-lts-announce/2020/09/msg00025.html Mailing ListThird Party Advisory