Vulnerability Details : CVE-2019-19318
In the Linux kernel 5.3.11, mounting a crafted btrfs image twice can cause an rwsem_down_write_slowpath use-after-free because (in rwsem_can_spin_on_owner in kernel/locking/rwsem.c) rwsem_owner_flags returns an already freed pointer,
Vulnerability category: Memory Corruption
Products affected by CVE-2019-19318
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:5.0.21:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:5.3.11:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
- cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*
- cpe:2.3:a:netapp:steelstore_cloud_integrated_storage:-:*:*:*:*:*:*:*
- cpe:2.3:a:netapp:hci_management_node:-:*:*:*:*:*:*:*
- cpe:2.3:a:netapp:solidfire:-:*:*:*:*:*:*:*
- cpe:2.3:a:netapp:active_iq_unified_manager:*:*:*:*:*:vmware_vsphere:*:*
- cpe:2.3:a:netapp:data_availability_services:-:*:*:*:*:*:*:*
- cpe:2.3:o:netapp:aff_a700s_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:netapp:fas8300_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:netapp:fas8700_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:netapp:aff_a400_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:netapp:h610s_firmware:-:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2019-19318
0.10%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 43 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2019-19318
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
2.1
|
LOW | AV:L/AC:L/Au:N/C:N/I:N/A:P |
3.9
|
2.9
|
NIST | |
|
4.4
|
MEDIUM | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H |
0.8
|
3.6
|
NIST |
CWE ids for CVE-2019-19318
-
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2019-19318
-
https://lists.debian.org/debian-lts-announce/2021/03/msg00010.html
[SECURITY] [DLA 2586-1] linux security updateMailing List;Third Party Advisory
-
https://usn.ubuntu.com/4414-1/
USN-4414-1: Linux kernel vulnerabilities | Ubuntu security notices | UbuntuThird Party Advisory
-
http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.html
[security-announce] openSUSE-SU-2020:0336-1: important: Security updateMailing List;Third Party Advisory
-
https://github.com/bobfuzzer/CVE/tree/master/CVE-2019-19318
CVE/CVE-2019-19318 at master · bobfuzzer/CVE · GitHubExploit;Third Party Advisory
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https://security.netapp.com/advisory/ntap-20200103-0001/
December 2019 Linux Kernel Vulnerabilities in NetApp Products | NetApp Product SecurityThird Party Advisory
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