CVE-2020-15393: canonical ubuntu_linux
Vulnerability summary
CVE-2020-15393 is a medium (CVSS 5.5) vulnerability in canonical ubuntu_linux. EPSS estimates a 0.45% chance of exploitation in the next 30 days, higher than 39.1% 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 23 · Related 20Timeline
- 29-06-2020PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
In the Linux kernel 4.4 through 5.7.6, usbtest_disconnect in drivers/usb/misc/usbtest.c has a memory leak, aka CID-28ebeb8db770.
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:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.45%
Chance of exploitation in the next 30 days
Percentile
39%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.45% 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.
Ubuntu44 products
- linuxAll versions (No fix recorded) | < 4.4.0-187.217 | < 4.15.0-115.116 | < 5.4.0-45.49
- linux-aws< 4.4.0-1076.80 | < 4.4.0-1112.124 | < 4.15.0-1080.84 | < 5.4.0-1022.22
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.3< 5.3.0-1033.35
- linux-aws-5.4< 5.4.0-1022.22~18.04.1
Debian2 products
- linux< 5.7.10-1
- debian_linuxEOL9.0
Canonical1 product
- ubuntu_linuxEOL14.04 | 16.04 | 18.04 | 20.04
Linux1 product
- linux_kernel≥ 4.4, ≤ 5.7.6
Opensuse1 product
- leapEOL15.1 | 15.2
5 vendors · 49 products
References
21 links- lists.opensuse.org/opensuse-security-announce/2020-07/msg00071.htmlVendor AdvisoryX Refsource SUSEMailing ListThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2020-08/msg00009.htmlVendor AdvisoryX Refsource SUSEMailing ListThird Party Advisory
lists.debian.org/debian-lts-announce/2020/08/msg00019.htmlMailing ListX Refsource MLISTThird Party Advisory- lists.debian.org/debian-lts-announce/2020/10/msg00032.htmlMailing ListX Refsource MLISTThird Party Advisory
Show all 21 references
- lists.debian.org/debian-lts-announce/2020/10/msg00034.htmlMailing ListX Refsource MLISTThird Party Advisory
