CVE-2020-0549: canonical ubuntu_linux Improper Resource Shutdown or Release
Vulnerability summary
CVE-2020-0549 is a medium (CVSS 5.5) Improper Resource Shutdown or Release vulnerability in canonical ubuntu_linux. EPSS estimates a 0.56% chance of exploitation in the next 30 days, higher than 46.9% of scored vulnerabilities.
Not severe (CVSS 5.5, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 32 · Related 8Timeline
- 28-01-2020PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
Cleanup errors in some data cache evictions for some Intel(R) Processors may allow an authenticated user to potentially enable information disclosure via local access.
CVSS metrics
4 scores · 3 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
EPSS trend
Probability
0.56%
Chance of exploitation in the next 30 days
Percentile
47%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.56% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Intel195 products
- celeron_3855u_firmwarena
- celeron_3865u_firmwarena
- celeron_3955u_firmwarena
- celeron_3965u_firmwarena
- celeron_3965y_firmwarena
Debian2 products
- intel-microcode< 3.20200609.1
- debian_linuxEOL8.0 | 10.0 | 11.0
Canonical1 product
- ubuntu_linuxEOL14.04 | 16.04 | 18.04 | 19.10 | 20.04
Fedoraproject1 product
- fedoraEOL31 | 32
Ubuntu1 product
- intel-microcode< 3.20200609.0ubuntu0.14.04.0 | < 3.20200609.0ubuntu0.16.04.0 | < 3.20200609.0ubuntu0.18.04.0 | < 3.20200609.0ubuntu0.20.04.0
5 vendors · 200 products · Showing 200 of 434
References
14 links- www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00329.htmlX Refsource CONFIRMREPORTVendor Advisory
- lists.opensuse.org/opensuse-security-announce/2020-06/msg00016.htmlVendor AdvisoryX Refsource SUSEMailing ListThird Party Advisory
- lists.debian.org/debian-lts-announce/2020/06/msg00019.htmlMailing ListX Refsource MLISTThird Party Advisory