CVE-2020-35499
published 2021-02-19CVE-2020-35499: A NULL pointer dereference flaw in Linux kernel versions prior to 5.11 may be seen if sco_sock_getsockopt function in net/bluetooth/sco.c do not have a sanity…
PriorityP428medium6.7CVSS 3.1
AVLACLPRHUINSUCHIHAH
EPSS
0.27%
19.5th percentile
A NULL pointer dereference flaw in Linux kernel versions prior to 5.11 may be seen if sco_sock_getsockopt function in net/bluetooth/sco.c do not have a sanity check for a socket connection, when using BT_SNDMTU/BT_RCVMTU for SCO sockets. This could allow a local attacker with a special user privilege to crash the system (DOS) or leak kernel internal information.
Affected
9 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 5.10.4-1 (bookworm) | linux 5.10.4-1 (bookworm) |
| linux | linux_kernel | — | — |
| linux | linux_kernel | >= 0 < 5.10.4-1 | 5.10.4-1 |
| linux | linux_kernel | >= 0 < 5.10.4-1 | 5.10.4-1 |
| linux | linux_kernel | >= 0 < 5.10.4-1 | 5.10.4-1 |
| linux | linux_kernel | >= 0 < 5.10.4-1 | 5.10.4-1 |
| linux | linux_kernel | >= 5.10 < 5.10.4 | 5.10.4 |
| msrc | cbl2_kernel_5.10.78.1-1_on_cbl_mariner_2.0 | — | — |
| msrc | cm1_kernel_5.10.60.1-1_on_cbl_mariner_1.0 | — | — |
CVSS provenance
nvdv3.16.7MEDIUMCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
nvdv2.07.2HIGHAV:L/AC:L/Au:N/C:C/I:C/A:C
osv6.7MEDIUM
vendor_debian6.7MEDIUM
vendor_msrc6.7MEDIUM
vendor_redhat6.7MEDIUM
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GHSA
GHSA-3m4x-gq6q-g6qr: A NULL pointer dereference flaw in kernel versions prior to 5
ghsa_unreviewed·2022-05-24
CVE-2020-35499 [HIGH] CWE-476 GHSA-3m4x-gq6q-g6qr: A NULL pointer dereference flaw in kernel versions prior to 5
A NULL pointer dereference flaw in kernel versions prior to 5.11 may be seen if sco_sock_getsockopt function in net/bluetooth/sco.c do not have a sanity check for a socket connection, when using BT_SNDMTU/BT_RCVMTU for SCO sockets. This could allow a local attacker with a special user privilege to crash the system (DOS) or leak kernel internal information.
OSV
CVE-2020-35499: A NULL pointer dereference flaw in Linux kernel versions prior to 5
osv·2021-02-19·CVSS 6.7
CVE-2020-35499 [MEDIUM] CVE-2020-35499: A NULL pointer dereference flaw in Linux kernel versions prior to 5
A NULL pointer dereference flaw in Linux kernel versions prior to 5.11 may be seen if sco_sock_getsockopt function in net/bluetooth/sco.c do not have a sanity check for a socket connection, when using BT_SNDMTU/BT_RCVMTU for SCO sockets. This could allow a local attacker with a special user privilege to crash the system (DOS) or leak kernel internal information.
Microsoft
A NULL pointer dereference flaw in Linux kernel versions prior to 5.11 may be seen if sco_sock_getsockopt function in net/bluetooth/sco.c do not have a sanity check for a socket connection when using
vendor_msrc·2021-02-09·CVSS 6.7
CVE-2020-35499 [MEDIUM] CWE-476 A NULL pointer dereference flaw in Linux kernel versions prior to 5.11 may be seen if sco_sock_getsockopt function in net/bluetooth/sco.c do not have a sanity check for a socket connection when using
A NULL pointer dereference flaw in Linux kernel versions prior to 5.11 may be seen if sco_sock_getsockopt function in net/bluetooth/sco.c do not have a sanity check for a socket connection when using BT_SNDMTU/BT_RCVMTU for SCO sockets. This could allow a local attacker with a special user privilege to crash the system (DOS) or leak kernel internal information.
FAQ: Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability?
One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the most recent and most secure versions of the open source libraries with which the distro is composed. Microsoft is committed to transparency in this work whi
Red Hat
kernel: NULL pointer dereference in sco_sock_getsockopt function
vendor_redhat·2020-12-17·CVSS 6.7
CVE-2020-35499 [MEDIUM] CWE-476 kernel: NULL pointer dereference in sco_sock_getsockopt function
kernel: NULL pointer dereference in sco_sock_getsockopt function
A NULL pointer dereference flaw in Linux kernel versions prior to 5.11 may be seen if sco_sock_getsockopt function in net/bluetooth/sco.c do not have a sanity check for a socket connection, when using BT_SNDMTU/BT_RCVMTU for SCO sockets. This could allow a local attacker with a special user privilege to crash the system (DOS) or leak kernel internal information.
A NULL pointer dereference flaw may be seen if sco_sock_getsockopt function in net/bluetooth/sco.c do not have a sanity check for a socket connection, when using BT_SNDMTU/BT_RCVMTU for SCO sockets. This could allow a local attacker with a special user privilege to crash the system (DOS) or leak kernel internal information.
Statement: There was no shipped kernel ve
Debian
CVE-2020-35499: linux - A NULL pointer dereference flaw in Linux kernel versions prior to 5.11 may be se...
vendor_debian·2020·CVSS 6.7
CVE-2020-35499 [MEDIUM] CVE-2020-35499: linux - A NULL pointer dereference flaw in Linux kernel versions prior to 5.11 may be se...
A NULL pointer dereference flaw in Linux kernel versions prior to 5.11 may be seen if sco_sock_getsockopt function in net/bluetooth/sco.c do not have a sanity check for a socket connection, when using BT_SNDMTU/BT_RCVMTU for SCO sockets. This could allow a local attacker with a special user privilege to crash the system (DOS) or leak kernel internal information.
Scope: local
bookworm: resolved (fixed in 5.10.4-1)
bullseye: resolved (fixed in 5.10.4-1)
forky: resolved (fixed in 5.10.4-1)
sid: resolved (fixed in 5.10.4-1)
trixie: resolved (fixed in 5.10.4-1)
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2021-02-19
Published