CVE-2019-19448

CVSS V2 Medium 6.8 CVSS V3 High 7.8
Description
In the Linux kernel 5.0.21 and 5.3.11, mounting a crafted btrfs filesystem image, performing some operations, and then making a syncfs system call can lead to a use-after-free in try_merge_free_space in fs/btrfs/free-space-cache.c because the pointer to a left data structure can be the same as the pointer to a right data structure.
Overview
  • CVE ID
  • CVE-2019-19448
  • Assigner
  • cve@mitre.org
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2019-12-08T02:15:09
  • Last Modified Date
  • 2023-02-27T15:30:49
Weakness Enumerations
CWE URL
CWE-416 http://cwe.mitre.org/data/definitions/416.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:o:linux:linux_kernel:5.0.21:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:linux:linux_kernel:5.3.11:*:*:*:*:*:*:* 1 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:M/Au:N/C:P/I:P/A:P
  • Access Vector
  • NETWORK
  • Access Compatibility
  • MEDIUM
  • Authentication
  • NONE
  • Confidentiality Impact
  • PARTIAL
  • Integrity Impact
  • PARTIAL
  • Availability Impact
  • PARTIAL
  • Base Score
  • 6.8
  • Severity
  • MEDIUM
  • Exploitability Score
  • 8.6
  • Impact Score
  • 6.4
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
  • Attack Vector
  • LOCAL
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • REQUIRED
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • HIGH
  • Availability Impact
  • HIGH
  • Base Score
  • 7.8
  • Base Severity
  • HIGH
  • Exploitability Score
  • 1.8
  • Impact Score
  • 5.9
References
Reference URL Reference Tags
https://github.com/bobfuzzer/CVE/tree/master/CVE-2019-19448 Exploit Third Party Advisory
https://security.netapp.com/advisory/ntap-20200103-0001/
https://lists.debian.org/debian-lts-announce/2020/09/msg00025.html
https://usn.ubuntu.com/4578-1/
https://lists.debian.org/debian-lts-announce/2020/10/msg00034.html
https://lists.debian.org/debian-lts-announce/2020/10/msg00032.html
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2019-19448
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-19448
History
Created Old Value New Value Data Type Notes
2022-05-10 16:21:14 Added to TrackCVE
2022-12-04 07:30:31 2019-12-08T02:15Z 2019-12-08T02:15:09 CVE Published Date updated
2022-12-04 07:30:31 2020-11-02T21:15:18 CVE Modified Date updated
2022-12-04 07:30:31 Modified Vulnerability Status updated
2023-01-26 17:09:32 Modified Undergoing Analysis Vulnerability Status updated
2023-02-27 16:10:18 2023-02-27T15:30:49 CVE Modified Date updated
2023-02-27 16:10:18 Undergoing Analysis Analyzed Vulnerability Status updated