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Vulnerability · Published Dec 15, 2020 · Assigned by mitre

CVE-2020-29568

Medium 6.5

In plain English

A medium-severity security flaw in the linux-lts package (Alpine). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 30% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)6.5Medium
Exploit odds (30 days)0.4%top 69.6% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

An issue was discovered in Xen through 4.14.x. Some OSes (such as Linux, FreeBSD, and NetBSD) are processing watch events using a single thread. If the events are received faster than the thread is able to handle, they will get queued. As the queue is unbounded, a guest may be able to trigger an OOM in the backend. All systems with a FreeBSD, Linux, or NetBSD (any version) dom0 are vulnerable.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Alpine:v3.20linux-lts5.10.4-r0ALPINE-CVE-2020-29568
Alpine:v3.21linux-lts5.10.4-r0ALPINE-CVE-2020-29568
Alpine:v3.22linux-lts5.10.4-r0ALPINE-CVE-2020-29568
Alpine:v3.23linux-lts5.10.4-r0ALPINE-CVE-2020-29568
Debian:12linux5.9.15-1DEBIAN-CVE-2020-29568
Debian:13linux5.9.15-1DEBIAN-CVE-2020-29568
Debian:14linux5.9.15-1DEBIAN-CVE-2020-29568
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2020-29568
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2020-29568
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2020-29568

Affected products (as reported)

VendorProductVersions
n/a n/a n/a

References