Vulnerability · Published Apr 9, 2020 · Assigned by canonical

CVE-2020-8832Ubuntu 18.04 Linux kernel i915 incomplete fix for CVE-2019-14615

Medium 5.5

In plain English

A medium-severity information exposure in 18.04 LTS (bionic) Linux kernel from Ubuntu. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 39% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)5.5Medium

Exploit odds (30 days)0.5%top 60.6% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official description

The fix for the Linux kernel in Ubuntu 18.04 LTS for CVE-2019-14615 ("The Linux kernel did not properly clear data structures on context switches for certain Intel graphics processors.") was discovered to be incomplete, meaning that in versions of the kernel before 4.15.0-91.92, an attacker could use this vulnerability to expose sensitive information.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Debian:12	linux	4.16.5-1	DEBIAN-CVE-2020-8832
Debian:13	linux	4.16.5-1	DEBIAN-CVE-2020-8832
Debian:14	linux	4.16.5-1	DEBIAN-CVE-2020-8832

Affected products (as reported)

Vendor	Product	Versions
Ubuntu	18.04 LTS (bionic) Linux kernel	4.15.x kernels – before 4.15.0-91.92

Weakness: CWE-200 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

References

https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1862840 x_refsource_MISC
USN-4302-1 vendor-advisory, x_refsource_UBUNTU
https://security.netapp.com/advisory/ntap-20200430-0004/ x_refsource_CONFIRM