CVE-2019-19447: linux linux_kernel Use After Free
Vulnerability summary
CVE-2019-19447 is a high (CVSS 7.8) Use After Free vulnerability in linux linux_kernel. EPSS estimates a 3.52% chance of exploitation in the next 30 days, higher than 89.2% of scored vulnerabilities. 1 public exploit is recorded.
Public exploit (GitHub, Date unknown)
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 30 · Related 20Timeline
- 08-12-2019PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
In the Linux kernel 5.0.21, mounting a crafted ext4 filesystem image, performing some operations, and unmounting can lead to a use-after-free in ext4_put_super in fs/ext4/super.c, related to dump_orphan_list in fs/ext4/super.c.
CVSS metrics
4 scores · 3 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS trend
Probability
3.52%
Chance of exploitation in the next 30 days
Percentile
89%
Versus all other CVEs
30-day change
No change 0.00 pp
From 3.52% 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
1 foundCve
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Known conditions: local access, no authentication, user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu35 products
- linuxAll versions (No fix recorded) | < 4.4.0-173.203 | < 4.15.0-88.88
- linux-aws< 4.4.0-1061.65 | < 4.4.0-1101.112 | < 4.15.0-1060.62
- linux-aws-5.0< 5.0.0-1025.28
- linux-aws-fips< 4.15.0-2018.18 | All versions (No fix recorded)
- linux-aws-hwe< 4.15.0-1060.62~16.04.1
Netapp6 products
- active_iq_unified_managerna
- cloud_backupna
- data_availability_servicesna
- hci_baseboard_management_controllerh610s
- solidfire_baseboard_management_controller_firmwarena
Debian1 product
- linux< 5.4.6-1
Linux1 product
- linux_kernel≥ 2.6.12, < 3.16.82 | ≥ 3.17, < 4.4.208 | ≥ 4.5.0, < 4.9.208 | ≥ 4.10, < 4.14.159 | ≥ 4.15, < 4.19.90 | ≥ 4.20, < 5.3.17 | ≥ 5.4, < 5.4.4
4 vendors · 43 products
References
10 links- github.com/bobfuzzer/CVE/tree/master/CVE-2019-19447X Refsource MISCREPORTExploitThird 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 SUSEThird Party Advisory
- lists.debian.org/debian-lts-announce/2020/06/msg00011.htmlMailing ListX Refsource MLISTThird Party Advisory
- lists.debian.org/debian-lts-announce/2020/06/msg00013.htmlMailing ListX Refsource MLISTThird Party Advisory