CVE-2021-47427
published 2024-05-21CVE-2021-47427: In the Linux kernel, the following vulnerability has been resolved: scsi: iscsi: Fix iscsi_task use after free Commit d39df158518c ("scsi: iscsi: Have abort…
PriorityP338high7.8CVSS 3.1
AVLACLPRLUINSUCHIHAH
EPSS
0.22%
12.2th percentile
In the Linux kernel, the following vulnerability has been resolved:
scsi: iscsi: Fix iscsi_task use after free
Commit d39df158518c ("scsi: iscsi: Have abort handler get ref to conn")
added iscsi_get_conn()/iscsi_put_conn() calls during abort handling but
then also changed the handling of the case where we detect an already
completed task where we now end up doing a goto to the common put/cleanup
code. This results in a iscsi_task use after free, because the common
cleanup code will do a put on the iscsi_task.
This reverts the goto and moves the iscsi_get_conn() to after we've checked
if the iscsi_task is valid.
Affected
9 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 5.14.12-1 (bookworm) | linux 5.14.12-1 (bookworm) |
| linux | linux | — | — |
| linux | linux | >= d39df158518ccc3bf24ee18082b5e100c8f014aa < 1642f51ac0d4f2b55d5748094c49ff8f7191b93c | 1642f51ac0d4f2b55d5748094c49ff8f7191b93c |
| linux | linux | >= d39df158518ccc3bf24ee18082b5e100c8f014aa < 258aad75c62146453d03028a44f2f1590d58e1f6 | 258aad75c62146453d03028a44f2f1590d58e1f6 |
| linux | linux_kernel | — | — |
| linux | linux_kernel | >= 0 < 5.14.12-1 | 5.14.12-1 |
| linux | linux_kernel | >= 0 < 5.14.12-1 | 5.14.12-1 |
| linux | linux_kernel | >= 0 < 5.14.12-1 | 5.14.12-1 |
| linux | linux_kernel | >= 5.14 < 5.14.12 | 5.14.12 |
CVSS provenance
nvdv3.17.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
osv7.8HIGH
vendor_debian7.8HIGH
vendor_redhat7.8HIGH
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OSV
CVE-2021-47427: In the Linux kernel, the following vulnerability has been resolved: scsi: iscsi: Fix iscsi_task use after free Commit d39df158518c ("scsi: iscsi: Have
osv·2024-05-21·CVSS 7.8
CVE-2021-47427 [HIGH] CVE-2021-47427: In the Linux kernel, the following vulnerability has been resolved: scsi: iscsi: Fix iscsi_task use after free Commit d39df158518c ("scsi: iscsi: Have
In the Linux kernel, the following vulnerability has been resolved: scsi: iscsi: Fix iscsi_task use after free Commit d39df158518c ("scsi: iscsi: Have abort handler get ref to conn") added iscsi_get_conn()/iscsi_put_conn() calls during abort handling but then also changed the handling of the case where we detect an already completed task where we now end up doing a goto to the common put/cleanup code. This results in a iscsi_task use after free, because the common cleanup code will do a put on the iscsi_task. This reverts the goto and moves the iscsi_get_conn() to after we've checked if the iscsi_task is valid.
GHSA
GHSA-rxcf-2w24-j9pq: In the Linux kernel, the following vulnerability has been resolved:
scsi: iscsi: Fix iscsi_task use after free
Commit d39df158518c ("scsi: iscsi: Ha
ghsa_unreviewed·2024-05-21
CVE-2021-47427 [HIGH] CWE-416 GHSA-rxcf-2w24-j9pq: In the Linux kernel, the following vulnerability has been resolved:
scsi: iscsi: Fix iscsi_task use after free
Commit d39df158518c ("scsi: iscsi: Ha
In the Linux kernel, the following vulnerability has been resolved:
scsi: iscsi: Fix iscsi_task use after free
Commit d39df158518c ("scsi: iscsi: Have abort handler get ref to conn")
added iscsi_get_conn()/iscsi_put_conn() calls during abort handling but
then also changed the handling of the case where we detect an already
completed task where we now end up doing a goto to the common put/cleanup
code. This results in a iscsi_task use after free, because the common
cleanup code will do a put on the iscsi_task.
This reverts the goto and moves the iscsi_get_conn() to after we've checked
if the iscsi_task is valid.
Red Hat
kernel: scsi: iscsi: Fix iscsi_task use after free
vendor_redhat·2024-05-21·CVSS 7.8
CVE-2021-47427 [HIGH] CWE-416 kernel: scsi: iscsi: Fix iscsi_task use after free
kernel: scsi: iscsi: Fix iscsi_task use after free
In the Linux kernel, the following vulnerability has been resolved:
scsi: iscsi: Fix iscsi_task use after free
Commit d39df158518c ("scsi: iscsi: Have abort handler get ref to conn")
added iscsi_get_conn()/iscsi_put_conn() calls during abort handling but
then also changed the handling of the case where we detect an already
completed task where we now end up doing a goto to the common put/cleanup
code. This results in a iscsi_task use after free, because the common
cleanup code will do a put on the iscsi_task.
This reverts the goto and moves the iscsi_get_conn() to after we've checked
if the iscsi_task is valid.
Package: kernel (Red Hat Enterprise Linux 6) - Out of support scope
Package: kernel (Red Hat Enterprise Linux 7) - Out of suppo
Debian
CVE-2021-47427: linux - In the Linux kernel, the following vulnerability has been resolved: scsi: iscsi...
vendor_debian·2021·CVSS 7.8
CVE-2021-47427 [HIGH] CVE-2021-47427: linux - In the Linux kernel, the following vulnerability has been resolved: scsi: iscsi...
In the Linux kernel, the following vulnerability has been resolved: scsi: iscsi: Fix iscsi_task use after free Commit d39df158518c ("scsi: iscsi: Have abort handler get ref to conn") added iscsi_get_conn()/iscsi_put_conn() calls during abort handling but then also changed the handling of the case where we detect an already completed task where we now end up doing a goto to the common put/cleanup code. This results in a iscsi_task use after free, because the common cleanup code will do a put on the iscsi_task. This reverts the goto and moves the iscsi_get_conn() to after we've checked if the iscsi_task is valid.
Scope: local
bookworm: resolved (fixed in 5.14.12-1)
bullseye: resolved
forky: resolved (fixed in 5.14.12-1)
sid: resolved (fixed in 5.14.12-1)
trixie: resolved (fixed in 5.14.12-1)
No detection rules found.
No public exploits indexed.
2024-05-21
Published