CVE-2019-19523: debian debian_linux Use After Free
Vulnerability summary
CVE-2019-19523 is a medium (CVSS 4.9) Use After Free vulnerability in debian debian_linux. EPSS estimates a 0.41% chance of exploitation in the next 30 days, higher than 35.2% of scored vulnerabilities.
Not severe (CVSS 4.6, physical access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 19 · Related 13Timeline
- 03-12-2019PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
In the Linux kernel before 5.3.7, there is a use-after-free bug that can be caused by a malicious USB device in the drivers/usb/misc/adutux.c driver, aka CID-44efc269db79.
CVSS metrics
4 scores · 3 sources · 2 versions- OSV · DebianEcosystem advisory · calculated4.6MediumCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- NVDNIST4.6MediumCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.41%
Chance of exploitation in the next 30 days
Percentile
35%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.41% 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: physical access, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu30 products
- linuxAll versions (No fix recorded) | < 4.4.0-168.197 | < 4.15.0-72.81
- linux-aws< 4.4.0-1058.62 | < 4.4.0-1098.109 | < 4.15.0-1056.58
- linux-aws-5.0< 5.0.0-1022.25~18.04.1
- linux-aws-fips< 4.15.0-2018.18 | All versions (No fix recorded)
- linux-aws-hwe< 4.15.0-1056.58~16.04.1
Debian2 products
- linux< 5.3.7-1
- debian_linuxEOL8.0
Linux1 product
- linux_kernel< 5.3.7
Opensuse1 product
- leapEOL15.1
4 vendors · 34 products
References
10 links- cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.3.7X Refsource MISCREPORTRelease NotesVendor Advisory
- www.openwall.com/lists/oss-security/2019/12/03/4Mailing ListX Refsource MLISTREPORTThird Party Advisory
lists.debian.org/debian-lts-announce/2020/01/msg00013.htmlMailing ListX Refsource MLISTThird Party Advisory- lists.debian.org/debian-lts-announce/2020/03/msg00001.htmlMailing ListX Refsource MLISTThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.htmlVendor AdvisoryX Refsource SUSEMailing ListThird Party Advisory