{ "data_type": "CVE", "data_format": "MITRE", "data_version": "4.0", "CVE_data_meta": { "ID": "CVE-2020-10781", "ASSIGNER": "secalert@redhat.com", "STATE": "PUBLIC" }, "affects": { "vendor": { "vendor_data": [ { "vendor_name": "Linux Kernel", "product": { "product_data": [ { "product_name": "kernel", "version": { "version_data": [ { "version_value": "before 5.8-rc6" } ] } } ] } } ] } }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "eng", "value": "CWE-732" } ] } ] }, "references": { "reference_data": [ { "url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=853eab68afc80f59f36bbdeb715e5c88c501e680", "refsource": "MISC", "name": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=853eab68afc80f59f36bbdeb715e5c88c501e680" }, { "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-10781", "name": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-10781", "refsource": "CONFIRM" }, { "url": "https://www.openwall.com/lists/oss-security/2020/06/18/1", "refsource": "MISC", "name": "https://www.openwall.com/lists/oss-security/2020/06/18/1" }, { "refsource": "MLIST", "name": "[debian-lts-announce] 20200928 [SECURITY] [DLA 2385-1] linux-4.19 security update", "url": "https://lists.debian.org/debian-lts-announce/2020/09/msg00025.html" } ] }, "description": { "description_data": [ { "lang": "eng", "value": "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." } ] }, "impact": { "cvss": [ [ { "vectorString": "5.5/CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.0" } ] ] } }