CVE-2020-10781
Summary
| CVE | CVE-2020-10781 |
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| State | PUBLIC |
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| Assigner | [email protected] |
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| Source Priority | CVE Program / NVD first with legacy fallback |
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| Published | 2020-09-16 13:15:00 UTC |
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| Updated | 2023-11-07 03:14:00 UTC |
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| Description | 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. |
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NVD Known Affected Configurations (CPE 2.3)
References
| Reference | Source | Link | Tags |
|---|
| kernel/git/torvalds/linux.git - Linux kernel source tree |
MISC |
git.kernel.org |
Patch, Vendor Advisory |
| [SECURITY] [DLA 2385-1] linux-4.19 security update |
MLIST |
lists.debian.org |
|
| 1847832 – (CVE-2020-10781) CVE-2020-10781 kernel: zram sysfs resource consumption |
CONFIRM |
bugzilla.redhat.com |
Issue Tracking, Third Party Advisory |
| oss-security - CVE-2020-10781 kernel: zram sysfs resource consumption |
MISC |
www.openwall.com |
Mailing List, Patch, Third Party Advisory |
| CVE Program record |
CVE.ORG |
www.cve.org |
canonical |
| NVD vulnerability detail |
NVD |
nvd.nist.gov |
canonical, analysis |
No vendor comments have been submitted for this CVE.
Legacy QID Mappings
- 174728 SUSE Enterprise Linux Security update for the Linux Kernel (SUSE-SU-2020:2122-1)
- 353137 Amazon Linux Security Advisory for kernel : ALAS2KERNEL-5.4-2022-014
- 377038 Alibaba Cloud Linux Security Update for cloud-kernel (ALINUX2-SA-2020:0198)
- 750376 OpenSUSE Security Update for RT kernel (openSUSE-SU-2021:0242-1)
- 900076 CBL-Mariner Linux Security Update for kernel 5.4.91
- 903322 Common Base Linux Mariner (CBL-Mariner) Security Update for kernel (3505)
- 905977 Common Base Linux Mariner (CBL-Mariner) Security Update for kernel (3505-1)
