CVE-2019-15794 describes a refcount underflow vulnerability in the Linux kernel's overlayfs and shiftfs components, specifically affecting Canonical Ubuntu 5.0 and 5.3 kernel series due to a non-upstream aufs patch. This flaw, rated 6.7 MEDIUM (CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H), allows a high-privileged local attacker to achieve high impact on confidentiality, integrity, and availability. While not actively exploited in the wild and not on the KEV catalog, a public exploit (EDB-47692) exists for Ubuntu 19.10, though there is minimal community discussion or media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
5.0CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:5.0:*:*:*:*:*:*:* | ||
5.3CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:5.3:*:*:*:*:*:*:* | ||
18.04CPE matchmatch criteria | cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* | ||
19.10CPE matchmatch criteria | cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/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.