CVE-2020-9391 is a Linux kernel vulnerability affecting versions 5.4 and 5.5 through 5.5.6 on AArch64 architectures, where the brk system call incorrectly handles memory addresses, potentially leading to heap corruption, particularly with GNU C Library's malloc. Rated Medium (CVSS 5.5), this flaw requires local access and low privileges to achieve high availability impact, but has no confidentiality or integrity impact. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 5.5, <= 5.5.6CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | ||
5.4CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:5.4:*:*:*:*:*:*:* | ||
31CPE matchmatch criteria | cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:* | ||
Range not provided by sourceCPE matchmatch criteria | cpe:2.3:a:netapp:active_iq_unified_manager:-:*:*:*:*:vmware_vsphere:*:* | ||
Range not provided by sourceCPE matchmatch criteria | cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.