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Vulnerability · Published Apr 2, 2020 · Assigned by mitre

CVE-2020-11494

Medium 4.4

In plain English

A medium-severity security flaw in the linux package (Debian). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 54% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)4.4Medium
Exploit odds (30 days)0.7%top 45.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

An issue was discovered in slc_bump in drivers/net/can/slcan.c in the Linux kernel 3.16 through 5.6.2. It allows attackers to read uninitialized can_frame data, potentially containing sensitive information from kernel stack memory, if the configuration lacks CONFIG_INIT_STACK_ALL, aka CID-b9258a2cece4.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux5.5.17-1DEBIAN-CVE-2020-11494
Debian:13linux5.5.17-1DEBIAN-CVE-2020-11494
Debian:14linux5.5.17-1DEBIAN-CVE-2020-11494
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2020-11494
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2020-11494
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2020-11494
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2020-11494

Affected products (as reported)

VendorProductVersions
n/a n/a n/a

References