CVE-2020-8832
Ubuntu 18.04 Linux kernel i915 incomplete fix for CVE-2019-14615
- Published
- Updated
- Reserved
- Assigned by
- canonical
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.
Timeline
ID reserved
By canonical
- 59 days later
· 59 days later
Published
- 4 years later
· 4 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| canonicalCNA (assigner) | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N |
| NVDNVD · Modified | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
- EPSS (exploitation in 30 days)
- 0.45% · top 61% of all CVEs (7 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Weakness
Affected products
Ubuntu · 18.04 LTS (bionic) Linux kernel
- affected 4.15.x kernels – < 4.15.0-91.92
What to do
Solution: Update to linux kernel 4.15.0-91.92 or newer, or apply the following commits: (20ccd4d3f689ac14dce8632d76769be0ac952060) drm/i915: Use same test for eviction and submitting kernel context (1803fcbca2e444f7972430c4dc1c3e98c6ee1bc9) drm/i915: Define an engine class enum for the uABI (ae6c4574782dbfebcbf1f7e3620bcaf58ceb69e3) drm/i915: Force the switch to the i915->kernel_context (f58d13d5717938d4dfcc82a2eeba0a6d7644f6e5) drm/i915: Move GT powersaving init to i915_gem_init() (cc6a818ad6bdb0d3008314cbd0fc9c9a2cd02695) drm/i915: Move intel_init_clock_gating() to i915_gem_init() (d378a3efb819e6d1992127122d957337571b4594) drm/i915: Inline intel_modeset_gem_init() (f4e15af7e21861445821d5f09922ef7e695269a1) drm/i915: Mark the context state as dirty/written (d2b4b97933f5adacfba42dc3b9200d0e21fbe2c4) drm/i915: Record the default hw state after reset upon load
References (3)
- https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1862840 (opens in a new tab)x_refsource_MISCx_transferred
- USN-4302-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- https://security.netapp.com/advisory/ntap-20200430-0004/ (opens in a new tab)x_refsource_CONFIRMx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2020-8832)Record last updated .