CVE-2020-26088
published 2020-09-24CVE-2020-26088: A missing CAP_NET_RAW check in NFC socket creation in net/nfc/rawsock.c in the Linux kernel before 5.8.2 could be used by local attackers to create raw…
PriorityP422medium5.5CVSS 3.1
AVLACLPRLUINSUCNIHAN
EPSS
0.40%
32.7th percentile
A missing CAP_NET_RAW check in NFC socket creation in net/nfc/rawsock.c in the Linux kernel before 5.8.2 could be used by local attackers to create raw sockets, bypassing security mechanisms, aka CID-26896f01467a.
Affected
16 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| debian | debian_linux | — | — |
| debian | linux | < linux 5.7.17-1 (bookworm) | linux 5.7.17-1 (bookworm) |
| linux | linux_kernel | < 5.8.2 | 5.8.2 |
| linux | linux_kernel | >= 0 < 5.7.17-1 | 5.7.17-1 |
| linux | linux_kernel | >= 0 < 5.7.17-1 | 5.7.17-1 |
| linux | linux_kernel | >= 0 < 5.7.17-1 | 5.7.17-1 |
| linux | linux_kernel | >= 0 < 5.7.17-1 | 5.7.17-1 |
| linux | linux_kernel | >= 0 < 4.15.0-121.123 | 4.15.0-121.123 |
| msrc | cbl_mariner_1.0_arm | — | — |
| msrc | cbl_mariner_1.0_x64 | — | — |
| msrc | cm1_kernel_5.4.91-3_on_cbl_mariner_1.0 | — | — |
| opensuse | leap | — | — |
| opensuse | leap | — | — |
CVSS provenance
nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
nvdv2.02.1LOWAV:L/AC:L/Au:N/C:N/I:P/A:N
osv5.5MEDIUM
vendor_debian5.5MEDIUM
vendor_msrc5.5MEDIUM
vendor_redhat5.5MEDIUM
vendor_ubuntu5.5MEDIUM
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Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2020-10-14·CVSS 5.5
CVE-2020-26088 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Hadar Manor discovered that the DCCP protocol implementation in the Linux
kernel improperly handled socket reuse, leading to a use-after-free
vulnerability. A local attacker could use this to cause a denial of service
(system crash) or possibly execute arbitrary code. (CVE-2020-16119)
Wen Xu discovered that the XFS file system in the Linux kernel did not
properly validate inode metadata in some situations. An attacker could use
this to construct a malicious XFS image that, when mounted, could cause a
denial of service (system crash). (CVE-2018-10322)
It was discovered that the btrfs file system in the Linux kernel contained
a use-after-free vulnerability when merging free space. An atta
Microsoft
A missing CAP_NET_RAW check in NFC socket creation in net/nfc/rawsock.c in the Linux kernel before 5.8.2 could be used by local attackers to create raw sockets bypassing security mechanisms aka CID-26
vendor_msrc·2020-09-08·CVSS 5.5
CVE-2020-26088 [MEDIUM] CWE-276 A missing CAP_NET_RAW check in NFC socket creation in net/nfc/rawsock.c in the Linux kernel before 5.8.2 could be used by local attackers to create raw sockets bypassing security mechanisms aka CID-26
A missing CAP_NET_RAW check in NFC socket creation in net/nfc/rawsock.c in the Linux kernel before 5.8.2 could be used by local attackers to create raw sockets bypassing security mechanisms aka CID-26896f01467a.
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 which is why we began publishing CSAF/VEX in October 2025. See this blog post for more information. If impact to additional products is identified, we will
Red Hat
kernel: missing CAP_NET_RAW check in NFC socket creation in net/nfc/rawsock.c allows local attackers to create raw sockets
vendor_redhat·2020-08-11·CVSS 5.5
CVE-2020-26088 [MEDIUM] CWE-285 kernel: missing CAP_NET_RAW check in NFC socket creation in net/nfc/rawsock.c allows local attackers to create raw sockets
kernel: missing CAP_NET_RAW check in NFC socket creation in net/nfc/rawsock.c allows local attackers to create raw sockets
A missing CAP_NET_RAW check in NFC socket creation in net/nfc/rawsock.c in the Linux kernel before 5.8.2 could be used by local attackers to create raw sockets, bypassing security mechanisms, aka CID-26896f01467a.
A missing capabilities check when creating NFC raw sockets could be used by local attackers to create raw sockets, bypassing security mechanisms allowing them to create or listen to NFC communication frames.
Mitigation: As the nfc module will be auto-loaded when required, its use can be disabled by preventing the module from loading with the following instructions:
# echo "install nfc /bin/true" >> /etc/modprobe.d/disable-nfc.conf
The system will need to b
Debian
CVE-2020-26088: linux - A missing CAP_NET_RAW check in NFC socket creation in net/nfc/rawsock.c in the L...
vendor_debian·2020·CVSS 5.5
CVE-2020-26088 [MEDIUM] CVE-2020-26088: linux - A missing CAP_NET_RAW check in NFC socket creation in net/nfc/rawsock.c in the L...
A missing CAP_NET_RAW check in NFC socket creation in net/nfc/rawsock.c in the Linux kernel before 5.8.2 could be used by local attackers to create raw sockets, bypassing security mechanisms, aka CID-26896f01467a.
Scope: local
bookworm: resolved (fixed in 5.7.17-1)
bullseye: resolved (fixed in 5.7.17-1)
forky: resolved (fixed in 5.7.17-1)
sid: resolved (fixed in 5.7.17-1)
trixie: resolved (fixed in 5.7.17-1)
GHSA
GHSA-mv8q-jr3c-hxp6: A missing CAP_NET_RAW check in NFC socket creation in net/nfc/rawsock
ghsa_unreviewed·2022-05-24
CVE-2020-26088 [MEDIUM] CWE-276 GHSA-mv8q-jr3c-hxp6: A missing CAP_NET_RAW check in NFC socket creation in net/nfc/rawsock
A missing CAP_NET_RAW check in NFC socket creation in net/nfc/rawsock.c in the Linux kernel before 5.8.2 could be used by local attackers to create raw sockets, bypassing security mechanisms, aka CID-26896f01467a.
OSV
linux, linux-aws, linux-aws-hwe, linux-azure, linux-azure-4.15, linux-gcp, linux-gcp-4.15, linux-gke-4.15, linux-hwe, linux-kvm, linux-oem, linux-oracle, linux-raspi2, linux-snapdragon vulnerabilities
osv·2020-10-14·CVSS 5.5
CVE-2020-16119 [MEDIUM] linux, linux-aws, linux-aws-hwe, linux-azure, linux-azure-4.15, linux-gcp, linux-gcp-4.15, 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-gcp-4.15, linux-gke-4.15, linux-hwe, linux-kvm, linux-oem, linux-oracle, linux-raspi2, linux-snapdragon vulnerabilities
Hadar Manor discovered that the DCCP protocol implementation in the Linux
kernel improperly handled socket reuse, leading to a use-after-free
vulnerability. A local attacker could use this to cause a denial of service
(system crash) or possibly execute arbitrary code. (CVE-2020-16119)
Wen Xu discovered that the XFS file system in the Linux kernel did not
properly validate inode metadata in some situations. An attacker could use
this to construct a malicious XFS image that, when mounted, could cause a
denial of service (system crash). (CVE-2018-10322)
It was discovered that the btrfs file s
OSV
CVE-2020-26088: A missing CAP_NET_RAW check in NFC socket creation in net/nfc/rawsock
osv·2020-09-24·CVSS 5.5
CVE-2020-26088 [MEDIUM] CVE-2020-26088: A missing CAP_NET_RAW check in NFC socket creation in net/nfc/rawsock
A missing CAP_NET_RAW check in NFC socket creation in net/nfc/rawsock.c in the Linux kernel before 5.8.2 could be used by local attackers to create raw sockets, bypassing security mechanisms, aka CID-26896f01467a.
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2020-26088 kernel: missing CAP_NET_RAW check in NFC socket creation in net/nfc/rawsock.c allows local attackers to create raw sockets
bugzilla·2020-09-24·CVSS 5.5
CVE-2020-26088 [MEDIUM] CVE-2020-26088 kernel: missing CAP_NET_RAW check in NFC socket creation in net/nfc/rawsock.c allows local attackers to create raw sockets
CVE-2020-26088 kernel: missing CAP_NET_RAW check in NFC socket creation in net/nfc/rawsock.c allows local attackers to create raw sockets
A missing capabilities check when creating NFC raw sockets could be used by local attackers to create raw sockets, bypassing security mechanisms allowing them to create or listen to NFC communication frames.
This could give a local attacker advanced information about the systems environment and devices connected nearby. It may also allow an attacker to impersonate an NFC device.
At this time no Red Hat product ships NFC enabled code is is not affected.
Reference and upstream patch:
https://github.com/torvalds/linux/commit/26896f01467a28651f7a536143fe5ac8449d4041
Discussion:
Created kernel tracking bugs for this issue:
Affects: fedora-all [bug 1882
Bugzilla
CVE-2020-26088 kernel: missing CAP_NET_RAW check in NFC socket creation in net/nfc/rawsock.c allows local attackers to create raw sockets [fedora-all]
bugzilla·2020-09-24·CVSS 5.5
CVE-2020-26088 [MEDIUM] CVE-2020-26088 kernel: missing CAP_NET_RAW check in NFC socket creation in net/nfc/rawsock.c allows local attackers to create raw sockets [fedora-all]
CVE-2020-26088 kernel: missing CAP_NET_RAW check in NFC socket creation in net/nfc/rawsock.c allows local attackers to create raw sockets [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
fed
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00001.htmlhttp://lists.opensuse.org/opensuse-security-announce/2020-10/msg00021.htmlhttps://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.8.2https://github.com/torvalds/linux/commit/26896f01467a28651f7a536143fe5ac8449d4041https://lists.debian.org/debian-lts-announce/2020/09/msg00025.htmlhttps://lists.debian.org/debian-lts-announce/2020/10/msg00032.htmlhttps://lists.debian.org/debian-lts-announce/2020/10/msg00034.htmlhttps://usn.ubuntu.com/4578-1/http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00001.htmlhttp://lists.opensuse.org/opensuse-security-announce/2020-10/msg00021.htmlhttps://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.8.2https://github.com/torvalds/linux/commit/26896f01467a28651f7a536143fe5ac8449d4041https://lists.debian.org/debian-lts-announce/2020/09/msg00025.htmlhttps://lists.debian.org/debian-lts-announce/2020/10/msg00032.htmlhttps://lists.debian.org/debian-lts-announce/2020/10/msg00034.htmlhttps://usn.ubuntu.com/4578-1/
2020-09-24
Published