CVE-2021-47319 : In the Linux kernel, the following vulnerability has been resolved: virtio-blk:

In the Linux kernel, the following vulnerability has been resolved: virtio-blk: Fix memory leak among suspend/resume procedure The vblk->vqs should be freed before we call init_vqs() in virtblk_restore().

Published 2024-05-21 14:35:35

Updated 2024-12-24 16:28:06

Source Linux

View at NVD, CVE.org

Products affected by CVE-2021-47319

Linux » Linux Kernel
Versions before (<) 4.4.276
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Matching versions
Linux » Linux Kernel
Versions from including (>=) 5.11 and before (<) 5.12.19
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Matching versions
Linux » Linux Kernel
Versions from including (>=) 4.20 and before (<) 5.4.134
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Matching versions
Linux » Linux Kernel
Versions from including (>=) 5.5 and before (<) 5.10.52
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Matching versions
Linux » Linux Kernel
Versions from including (>=) 4.15 and before (<) 4.19.198
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Matching versions
Linux » Linux Kernel
Versions from including (>=) 4.5 and before (<) 4.9.276
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Matching versions
Linux » Linux Kernel
Versions from including (>=) 5.13 and before (<) 5.13.4
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Matching versions
Linux » Linux Kernel
Versions from including (>=) 4.10 and before (<) 4.14.240
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Matching versions

Exploit prediction scoring system (EPSS) score for CVE-2021-47319

EPSS FAQ

0.04%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 7 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2021-47319

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source	First Seen
5.5	MEDIUM	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H	1.8	3.6	NIST	2024-12-24
Attack Vector: Local Attack Complexity: Low Privileges Required: Low User Interaction: None Scope: Unchanged Confidentiality: None Integrity: None Availability: High

CWE ids for CVE-2021-47319

CWE-401 Missing Release of Memory after Effective Lifetime

The product does not sufficiently track and release allocated memory after it has been used, which slowly consumes remaining memory.

Assigned by: nvd@nist.gov (Primary)

References for CVE-2021-47319

https://git.kernel.org/stable/c/b71ba22e7c6c6b279c66f53ee7818709774efa1f

virtio-blk: Fix memory leak among suspend/resume procedure - kernel/git/stable/linux.git - Linux kernel stable tree
Patch
https://git.kernel.org/stable/c/cd24da0db9f75ca11eaf6060f0ccb90e2f3be3b0

virtio-blk: Fix memory leak among suspend/resume procedure - kernel/git/stable/linux.git - Linux kernel stable tree
Patch
https://git.kernel.org/stable/c/04c6e60b884cb5e94ff32af46867fb41d5848358

virtio-blk: Fix memory leak among suspend/resume procedure - kernel/git/stable/linux.git - Linux kernel stable tree
Patch
https://git.kernel.org/stable/c/863da837964c80c72e368a4f748c30d25daa1815

virtio-blk: Fix memory leak among suspend/resume procedure - kernel/git/stable/linux.git - Linux kernel stable tree
Patch
https://git.kernel.org/stable/c/29a2f4a3214aa14d61cc9737c9f886dae9dbb710

virtio-blk: Fix memory leak among suspend/resume procedure - kernel/git/stable/linux.git - Linux kernel stable tree
Patch
https://git.kernel.org/stable/c/ca2b8ae93a6da9839dc7f9eb9199b18aa03c3dae

virtio-blk: Fix memory leak among suspend/resume procedure - kernel/git/stable/linux.git - Linux kernel stable tree
Patch
https://git.kernel.org/stable/c/381bde79d11e596002edfd914e6714291826967a

virtio-blk: Fix memory leak among suspend/resume procedure - kernel/git/stable/linux.git - Linux kernel stable tree
Patch
https://git.kernel.org/stable/c/102d6bc6475ab09bab579c18704e6cf8d898e93c

virtio-blk: Fix memory leak among suspend/resume procedure - kernel/git/stable/linux.git - Linux kernel stable tree
Patch
https://git.kernel.org/stable/c/600942d2fd49b90e44857d20c774b20d16f3130f

virtio-blk: Fix memory leak among suspend/resume procedure - kernel/git/stable/linux.git - Linux kernel stable tree
Patch

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Vulnerability Details : CVE-2021-47319

Products affected by CVE-2021-47319

Exploit prediction scoring system (EPSS) score for CVE-2021-47319

CVSS scores for CVE-2021-47319

CWE ids for CVE-2021-47319

References for CVE-2021-47319