CVE-2020-10751
published 2020-05-26CVE-2020-10751: A flaw was found in the Linux kernels SELinux LSM hook implementation before version 5.7, where it incorrectly assumed that an skb would only contain a single…
PriorityP427medium6.1CVSS 3.1
AVLACLPRLUINSUCHILAN
EPSS
0.35%
27.4th percentile
A flaw was found in the Linux kernels SELinux LSM hook implementation before version 5.7, where it incorrectly assumed that an skb would only contain a single netlink message. The hook would incorrectly only validate the first netlink message in the skb and allow or deny the rest of the messages within the skb with the granted permission without further processing.
Affected
13 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 5.6.14-1 (bookworm) | linux 5.6.14-1 (bookworm) |
| android | — | — | |
| kernel | selinux | < 5.7 | 5.7 |
| linux | linux_kernel | >= 0 < 5.6.14-1 | 5.6.14-1 |
| linux | linux_kernel | >= 0 < 5.6.14-1 | 5.6.14-1 |
| linux | linux_kernel | >= 0 < 5.6.14-1 | 5.6.14-1 |
| linux | linux_kernel | >= 0 < 5.6.14-1 | 5.6.14-1 |
| linux | linux_kernel | >= 0 < 4.4.0-184.214 | 4.4.0-184.214 |
| linux | linux_kernel | >= 0 < 4.15.0-106.107 | 4.15.0-106.107 |
| linux | linux_kernel | >= 0 < 5.4.0-37.41 | 5.4.0-37.41 |
| redhat | enterprise_linux_server | — | — |
| redhat | enterprise_linux_server | — | — |
| the_linux_foundation | kernel | — | — |
CVSS provenance
nvdv3.16.1MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N
nvdv2.03.6LOWAV:L/AC:L/Au:N/C:P/I:P/A:N
osv6.5MEDIUM
vendor_ubuntu6.5MEDIUM
vendor_debian6.1MEDIUM
vendor_redhat6.1MEDIUM
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GHSA
GHSA-4gwr-f7fq-56wc: A flaw was found in the Linux kernels SELinux LSM hook implementation before version 5
ghsa_unreviewed·2022-05-24
CVE-2020-10751 [LOW] CWE-345 GHSA-4gwr-f7fq-56wc: A flaw was found in the Linux kernels SELinux LSM hook implementation before version 5
A flaw was found in the Linux kernels SELinux LSM hook implementation before version 5.7, where it incorrectly assumed that an skb would only contain a single netlink message. The hook would incorrectly only validate the first netlink message in the skb and allow or deny the rest of the messages within the skb with the granted permission without further processing.
OSV
linux, linux-aws, linux-aws-5.3, linux-azure, linux-azure-5.3, linux-gcp, linux-gcp-5.3, linux-gke-5.3, linux-hwe, linux-kvm, linux-oracle, linux-oracle-5.3, linux-raspi2-5.3 vulnerabilities
osv·2020-07-06·CVSS 5.9
CVE-2020-10711 [MEDIUM] linux, linux-aws, linux-aws-5.3, linux-azure, linux-azure-5.3, linux-gcp, linux-gcp-5.3, linux-gke-5.3, linux-hwe, linux-kvm, linux-oracle, linux-oracle-5.3, linux-raspi2-5.3 vulnerabilities
linux, linux-aws, linux-aws-5.3, linux-azure, linux-azure-5.3, linux-gcp, linux-gcp-5.3, linux-gke-5.3, linux-hwe, linux-kvm, linux-oracle, linux-oracle-5.3, linux-raspi2-5.3 vulnerabilities
Matthew Sheets discovered that the SELinux network label handling
implementation in the Linux kernel could be coerced into de-referencing a
NULL pointer. A remote attacker could use this to cause a denial of service
(system crash). (CVE-2020-10711)
It was discovered that the SCSI generic (sg) driver in the Linux kernel did
not properly handle certain error conditions correctly. A local privileged
attacker could use this to cause a denial of service (system crash).
(CVE-2020-12770)
It was discovered that the USB Gadget device driver in the Linux kernel did
not validate arguments passed from configfs
OSV
linux-gke-5.0, linux-oem-osp1 vulnerabilities
osv·2020-07-02·CVSS 5.9
CVE-2020-10711 [MEDIUM] linux-gke-5.0, linux-oem-osp1 vulnerabilities
linux-gke-5.0, linux-oem-osp1 vulnerabilities
Matthew Sheets discovered that the SELinux network label handling
implementation in the Linux kernel could be coerced into de-referencing a
NULL pointer. A remote attacker could use this to cause a denial of service
(system crash). (CVE-2020-10711)
It was discovered that the SCSI generic (sg) driver in the Linux kernel did
not properly handle certain error conditions correctly. A local privileged
attacker could use this to cause a denial of service (system crash).
(CVE-2020-12770)
It was discovered that the USB Gadget device driver in the Linux kernel did
not validate arguments passed from configfs in some situations. A local
attacker could possibly use this to cause a denial of service (system
crash) or possibly expose sensitive information
OSV
linux, linux-aws, linux-aws-hwe, linux-azure, linux-azure-4.15, linux-gcp, linux-gke-4.15, linux-hwe, linux-kvm, linux-oem, linux-oracle, linux-raspi2, linux-snapdragon vulnerabilities
osv·2020-06-11·CVSS 4.4
CVE-2020-0067 [MEDIUM] linux, linux-aws, linux-aws-hwe, linux-azure, linux-azure-4.15, linux-gcp, linux-gke-4.15, linux-hwe, linux-kvm, linux-oem, linux-oracle, linux-raspi2, linux-snapdragon vulnerabilities
linux, linux-aws, linux-aws-hwe, linux-azure, linux-azure-4.15, linux-gcp, linux-gke-4.15, linux-hwe, linux-kvm, linux-oem, linux-oracle, linux-raspi2, linux-snapdragon vulnerabilities
It was discovered that the F2FS file system implementation in the Linux
kernel did not properly perform bounds checking on xattrs in some
situations. A local attacker could possibly use this to expose sensitive
information (kernel memory). (CVE-2020-0067)
It was discovered that memory contents previously stored in
microarchitectural special registers after RDRAND, RDSEED, and SGX EGETKEY
read operations on Intel client and Xeon E3 processors may be briefly
exposed to processes on the same or different processor cores. A local
attacker could use this to expose sensitive information. (CVE-2020-0543)
Piotr K
OSV
linux, linux-aws, linux-kvm, linux-raspi2, linux-snapdragon vulnerabilities
osv·2020-06-11·CVSS 6.5
CVE-2019-19319 [MEDIUM] linux, linux-aws, linux-kvm, linux-raspi2, linux-snapdragon vulnerabilities
linux, linux-aws, linux-kvm, linux-raspi2, linux-snapdragon vulnerabilities
It was discovered that the ext4 file system implementation in the Linux
kernel did not properly handle setxattr operations in some situations. A
local attacker could use this to cause a denial of service (system crash)
or possibly execute arbitrary code. (CVE-2019-19319)
It was discovered that memory contents previously stored in
microarchitectural special registers after RDRAND, RDSEED, and SGX EGETKEY
read operations on Intel client and Xeon E3 processors may be briefly
exposed to processes on the same or different processor cores. A local
attacker could use this to expose sensitive information. (CVE-2020-0543)
Piotr Krysiuk discovered that race conditions existed in the file system
implementation in the Linux
OSV
linux, linux-aws, linux-azure, linux-gcp, linux-kvm, linux-oracle, linux-raspi, linux-riscv vulnerabilities
osv·2020-06-10·CVSS 4.4
CVE-2020-0067 [MEDIUM] linux, linux-aws, linux-azure, linux-gcp, linux-kvm, linux-oracle, linux-raspi, linux-riscv vulnerabilities
linux, linux-aws, linux-azure, linux-gcp, linux-kvm, linux-oracle, linux-raspi, linux-riscv vulnerabilities
It was discovered that the F2FS file system implementation in the Linux
kernel did not properly perform bounds checking on xattrs in some
situations. A local attacker could possibly use this to expose sensitive
information (kernel memory). (CVE-2020-0067)
It was discovered that memory contents previously stored in
microarchitectural special registers after RDRAND, RDSEED, and SGX EGETKEY
read operations on Intel client and Xeon E3 processors may be briefly
exposed to processes on the same or different processor cores. A local
attacker could use this to expose sensitive information. (CVE-2020-0543)
Piotr Krysiuk discovered that race conditions existed in the file system
implementat
OSV
CVE-2020-10751: A flaw was found in the Linux kernels SELinux LSM hook implementation before version 5
osv·2020-05-26·CVSS 6.1
CVE-2020-10751 [MEDIUM] CVE-2020-10751: A flaw was found in the Linux kernels SELinux LSM hook implementation before version 5
A flaw was found in the Linux kernels SELinux LSM hook implementation before version 5.7, where it incorrectly assumed that an skb would only contain a single netlink message. The hook would incorrectly only validate the first netlink message in the skb and allow or deny the rest of the messages within the skb with the granted permission without further processing.
Android
CVE-2020-10751: SELinux
vendor_android·2020-08-01·CVSS 6.1
CVE-2020-10751 [MEDIUM] CVE-2020-10751: SELinux
Android Security Bulletin 2020-08-01
CVE: CVE-2020-10751
Severity: HIGH
Type: EoP
Component: SELinux
References: A-155485360
Upstream kernel
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2020-07-06·CVSS 5.9
CVE-2020-10711 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Matthew Sheets discovered that the SELinux network label handling
implementation in the Linux kernel could be coerced into de-referencing a
NULL pointer. A remote attacker could use this to cause a denial of service
(system crash). (CVE-2020-10711)
It was discovered that the SCSI generic (sg) driver in the Linux kernel did
not properly handle certain error conditions correctly. A local privileged
attacker could use this to cause a denial of service (system crash).
(CVE-2020-12770)
It was discovered that the USB Gadget device driver in the Linux kernel did
not validate arguments passed from configfs in some situations. A local
attacker could possibly use this to cause a denial of service
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2020-06-11·CVSS 6.5
CVE-2019-19319 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
It was discovered that the ext4 file system implementation in the Linux
kernel did not properly handle setxattr operations in some situations. A
local attacker could use this to cause a denial of service (system crash)
or possibly execute arbitrary code. (CVE-2019-19319)
It was discovered that memory contents previously stored in
microarchitectural special registers after RDRAND, RDSEED, and SGX EGETKEY
read operations on Intel client and Xeon E3 processors may be briefly
exposed to processes on the same or different processor cores. A local
attacker could use this to expose sensitive information. (CVE-2020-0543)
Piotr Krysiuk discovered that race conditions existed in the file system
i
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2020-06-11·CVSS 4.4
CVE-2020-0067 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
It was discovered that the F2FS file system implementation in the Linux
kernel did not properly perform bounds checking on xattrs in some
situations. A local attacker could possibly use this to expose sensitive
information (kernel memory). (CVE-2020-0067)
It was discovered that memory contents previously stored in
microarchitectural special registers after RDRAND, RDSEED, and SGX EGETKEY
read operations on Intel client and Xeon E3 processors may be briefly
exposed to processes on the same or different processor cores. A local
attacker could use this to expose sensitive information. (CVE-2020-0543)
Piotr Krysiuk discovered that race conditions existed in the file system
implementation in
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2020-06-10·CVSS 4.4
CVE-2020-0067 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
It was discovered that the F2FS file system implementation in the Linux
kernel did not properly perform bounds checking on xattrs in some
situations. A local attacker could possibly use this to expose sensitive
information (kernel memory). (CVE-2020-0067)
It was discovered that memory contents previously stored in
microarchitectural special registers after RDRAND, RDSEED, and SGX EGETKEY
read operations on Intel client and Xeon E3 processors may be briefly
exposed to processes on the same or different processor cores. A local
attacker could use this to expose sensitive information. (CVE-2020-0543)
Piotr Krysiuk discovered that race conditions existed in the file system
implementation in
Red Hat
kernel: SELinux netlink permission check bypass
vendor_redhat·2020-04-27·CVSS 6.1
CVE-2020-10751 [MEDIUM] CWE-349 kernel: SELinux netlink permission check bypass
kernel: SELinux netlink permission check bypass
A flaw was found in the Linux kernels SELinux LSM hook implementation before version 5.7, where it incorrectly assumed that an skb would only contain a single netlink message. The hook would incorrectly only validate the first netlink message in the skb and allow or deny the rest of the messages within the skb with the granted permission without further processing.
A flaw was found in the Linux kernel’s SELinux LSM hook implementation, where it anticipated the skb would only contain a single Netlink message. The hook incorrectly validated the first Netlink message in the skb only, to allow or deny the rest of the messages within the skb with the granted permissions and without further processing. At this time, there is no known ability for
Debian
CVE-2020-10751: linux - A flaw was found in the Linux kernels SELinux LSM hook implementation before ver...
vendor_debian·2020·CVSS 6.1
CVE-2020-10751 [MEDIUM] CVE-2020-10751: linux - A flaw was found in the Linux kernels SELinux LSM hook implementation before ver...
A flaw was found in the Linux kernels SELinux LSM hook implementation before version 5.7, where it incorrectly assumed that an skb would only contain a single netlink message. The hook would incorrectly only validate the first netlink message in the skb and allow or deny the rest of the messages within the skb with the granted permission without further processing.
Scope: local
bookworm: resolved (fixed in 5.6.14-1)
bullseye: resolved (fixed in 5.6.14-1)
forky: resolved (fixed in 5.6.14-1)
sid: resolved (fixed in 5.6.14-1)
trixie: resolved (fixed in 5.6.14-1)
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2020-10751 kernel: SELinux netlink permission check bypass [fedora-all]
bugzilla·2020-06-05·CVSS 6.1
CVE-2020-10751 [MEDIUM] CVE-2020-10751 kernel: SELinux netlink permission check bypass [fedora-all]
CVE-2020-10751 kernel: SELinux netlink permission check bypass [fedora-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of fedora-all.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
NOTE: this issue affects multiple supported versions o
Bugzilla
CVE-2020-10751 kernel: SELinux netlink permission check bypass
bugzilla·2020-05-25·CVSS 6.1
CVE-2020-10751 [MEDIUM] CVE-2020-10751 kernel: SELinux netlink permission check bypass
CVE-2020-10751 kernel: SELinux netlink permission check bypass
A flaw was found in the Linux kernel SELinux LSM hook implementation before version 5.7, where it incorrectly assumed that an skb would only contain a single netlink message. The hook would incorrectly only validate the first netlink message in the skb and allow or deny the rest of the messages within the skb with the granted permission without further processing.
At this time, there is no known ability for an attacker to use this to abuse this flaw as capabilities are required to process any 'modify' operation.
Discussion:
External References:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=fb73974172ffaaf57a7c42f35424d9aece1a5af6
https://www.openwall.com/lists/oss-security/2020/04/30/5
htt
http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00022.htmlhttp://lists.opensuse.org/opensuse-security-announce/2020-07/msg00008.htmlhttp://www.openwall.com/lists/oss-security/2020/05/27/3https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-10751https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=fb73974172ffaaf57a7c42f35424d9aece1a5af6https://lists.debian.org/debian-lts-announce/2020/06/msg00011.htmlhttps://lists.debian.org/debian-lts-announce/2020/06/msg00012.htmlhttps://lists.debian.org/debian-lts-announce/2020/06/msg00013.htmlhttps://lore.kernel.org/selinux/CACT4Y+b8HiV6KFuAPysZD=5hmyO4QisgxCKi4DHU3CfMPSP=yg%40mail.gmail.com/https://usn.ubuntu.com/4389-1/https://usn.ubuntu.com/4390-1/https://usn.ubuntu.com/4391-1/https://usn.ubuntu.com/4412-1/https://usn.ubuntu.com/4413-1/https://www.debian.org/security/2020/dsa-4698https://www.debian.org/security/2020/dsa-4699https://www.openwall.com/lists/oss-security/2020/04/30/5https://www.oracle.com/security-alerts/cpuApr2021.htmlhttp://lists.opensuse.org/opensuse-security-announce/2020-06/msg00022.htmlhttp://lists.opensuse.org/opensuse-security-announce/2020-07/msg00008.htmlhttp://www.openwall.com/lists/oss-security/2020/05/27/3https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-10751https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=fb73974172ffaaf57a7c42f35424d9aece1a5af6https://lists.debian.org/debian-lts-announce/2020/06/msg00011.htmlhttps://lists.debian.org/debian-lts-announce/2020/06/msg00012.htmlhttps://lists.debian.org/debian-lts-announce/2020/06/msg00013.htmlhttps://lore.kernel.org/selinux/CACT4Y+b8HiV6KFuAPysZD=5hmyO4QisgxCKi4DHU3CfMPSP=yg%40mail.gmail.com/https://usn.ubuntu.com/4389-1/https://usn.ubuntu.com/4390-1/https://usn.ubuntu.com/4391-1/https://usn.ubuntu.com/4412-1/https://usn.ubuntu.com/4413-1/https://www.debian.org/security/2020/dsa-4698https://www.debian.org/security/2020/dsa-4699https://www.openwall.com/lists/oss-security/2020/04/30/5https://www.oracle.com/security-alerts/cpuApr2021.html
2020-05-26
Published