CVE-2022-1671
published 2022-07-26CVE-2022-1671: A NULL pointer dereference flaw was found in rxrpc_preparse_s in net/rxrpc/server_key.c in the Linux kernel. This flaw allows a local attacker to crash the…
PriorityP428high7.1CVSS 3.1
AVLACLPRLUINSUCHINAH
EPSS
0.31%
23.5th percentile
A NULL pointer dereference flaw was found in rxrpc_preparse_s in net/rxrpc/server_key.c in the Linux kernel. This flaw allows a local attacker to crash the system or leak internal kernel information.
Affected
15 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 5.17.3-1 (bookworm) | linux 5.17.3-1 (bookworm) |
| linux | linux_kernel | — | — |
| linux | linux_kernel | >= 0 < 5.17.3-1 | 5.17.3-1 |
| linux | linux_kernel | >= 0 < 5.17.3-1 | 5.17.3-1 |
| linux | linux_kernel | >= 0 < 5.17.3-1 | 5.17.3-1 |
| linux | linux_kernel | >= 0 < 5.15.0-37.39 | 5.15.0-37.39 |
| linux | linux_kernel | >= 5.11 < 5.15.33 | 5.15.33 |
| linux | linux_kernel | >= 5.16 < 5.16.19 | 5.16.19 |
| linux | linux_kernel | >= 5.17 < 5.17.2 | 5.17.2 |
| msrc | cbl2_kernel_5.15.67.1-4_on_cbl_mariner_2.0 | — | — |
| msrc | cbl_mariner_1.0_arm | — | — |
| msrc | cbl_mariner_1.0_x64 | — | — |
| msrc | cbl_mariner_2.0_arm | — | — |
| msrc | cbl_mariner_2.0_x64 | — | — |
| msrc | cm1_kernel_5.10.134.1-2_on_cbl_mariner_1.0 | — | — |
CVSS provenance
nvdv3.17.1HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
osv7.1HIGH
cisa7.8HIGH
vendor_debian7.1HIGH
vendor_msrc7.1HIGH
vendor_redhat7.1HIGH
vendor_ubuntu4.4MEDIUM
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Microsoft
A NULL pointer dereference flaw was found in rxrpc_preparse_s in net/rxrpc/server_key.c in the Linux kernel. This flaw allows a local attacker to crash the system or leak internal kernel information.
vendor_msrc·2022-07-12·CVSS 7.1
CVE-2022-1671 [HIGH] CWE-476 A NULL pointer dereference flaw was found in rxrpc_preparse_s in net/rxrpc/server_key.c in the Linux kernel. This flaw allows a local attacker to crash the system or leak internal kernel information.
A NULL pointer dereference flaw was found in rxrpc_preparse_s in net/rxrpc/server_key.c in the Linux kernel. This flaw allows a local attacker to crash the system or leak internal kernel 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 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 update the
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2022-06-08·CVSS 4.4
CVE-2022-1671 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
It was discovered that the Linux kernel did not properly restrict access to
the kernel debugger when booted in secure boot environments. A privileged
attacker could use this to bypass UEFI Secure Boot restrictions.
(CVE-2022-21499)
Aaron Adams discovered that the netfilter subsystem in the Linux kernel did
not properly handle the removal of stateful expressions in some situations,
leading to a use-after-free vulnerability. A local attacker could use this
to cause a denial of service (system crash) or execute arbitrary code.
(CVE-2022-1966)
Billy Jheng Bing Jhong discovered that the CIFS network file system
implementation in the Linux kernel did not properly validate arguments to
ioctl()
CISA
Microsoft Windows Remote Code Execution Vulnerability
cisa·2022-05-25·CVSS 7.8
CVE-2015-1671 [HIGH] CWE-19 Microsoft Windows Remote Code Execution Vulnerability
Vulnerability: Microsoft Windows Remote Code Execution Vulnerability
Affected: Microsoft Windows
A remote code execution vulnerability exists when components of Windows, .NET Framework, Office, Lync, and Silverlight fail to properly handle TrueType fonts.
Required Action: Apply updates per vendor instructions.
Notes: https://nvd.nist.gov/vuln/detail/CVE-2015-1671
Remediation Due Date: 2022-06-15
Red Hat
kernel: null-ptr-deref bugs in net/rxrpc/server_key.c in rxrpc_preparse_s
vendor_redhat·2022-03-30·CVSS 7.1
CVE-2022-1671 [HIGH] CWE-476 kernel: null-ptr-deref bugs in net/rxrpc/server_key.c in rxrpc_preparse_s
kernel: null-ptr-deref bugs in net/rxrpc/server_key.c in rxrpc_preparse_s
A NULL pointer dereference flaw was found in rxrpc_preparse_s in net/rxrpc/server_key.c in the Linux kernel. This flaw allows a local attacker to crash the system or leak internal kernel information.
A NULL pointer dereference flaw was found in rxrpc_preparse_s in net/rxrpc/server_key.c in the Linux kernel. This flaw allows a local attacker to crash the system or leak internal kernel information.
Package: kernel (Red Hat Enterprise Linux 6) - Not affected
Package: kernel (Red Hat Enterprise Linux 7) - Not affected
Package: kernel-rt (Red Hat Enterprise Linux 7) - Not affected
Package: kernel (Red Hat Enterprise Linux 8) - Not affected
Package: kernel-rt (Red Hat Enterprise Linux 8) - Not affected
Package: ker
Debian
CVE-2022-1671: linux - A NULL pointer dereference flaw was found in rxrpc_preparse_s in net/rxrpc/serve...
vendor_debian·2022·CVSS 7.1
CVE-2022-1671 [HIGH] CVE-2022-1671: linux - A NULL pointer dereference flaw was found in rxrpc_preparse_s in net/rxrpc/serve...
A NULL pointer dereference flaw was found in rxrpc_preparse_s in net/rxrpc/server_key.c in the Linux kernel. This flaw allows a local attacker to crash the system or leak internal kernel information.
Scope: local
bookworm: resolved (fixed in 5.17.3-1)
bullseye: resolved
forky: resolved (fixed in 5.17.3-1)
sid: resolved (fixed in 5.17.3-1)
trixie: resolved (fixed in 5.17.3-1)
GHSA
GHSA-vv47-5mh5-w3hq: A NULL pointer dereference flaw was found in rxrpc_preparse_s in net/rxrpc/server_key
ghsa_unreviewed·2022-07-27
CVE-2022-1671 [HIGH] CWE-476 GHSA-vv47-5mh5-w3hq: A NULL pointer dereference flaw was found in rxrpc_preparse_s in net/rxrpc/server_key
A NULL pointer dereference flaw was found in rxrpc_preparse_s in net/rxrpc/server_key.c in the Linux kernel. This flaw allows a local attacker to crash the system or leak internal kernel information.
OSV
CVE-2022-1671: A NULL pointer dereference flaw was found in rxrpc_preparse_s in net/rxrpc/server_key
osv·2022-07-26·CVSS 7.1
CVE-2022-1671 [HIGH] CVE-2022-1671: A NULL pointer dereference flaw was found in rxrpc_preparse_s in net/rxrpc/server_key
A NULL pointer dereference flaw was found in rxrpc_preparse_s in net/rxrpc/server_key.c in the Linux kernel. This flaw allows a local attacker to crash the system or leak internal kernel information.
OSV
linux, linux-aws, linux-azure, linux-gcp, linux-gke, linux-ibm, linux-intel-iotg, linux-kvm, linux-lowlatency, linux-oracle, linux-raspi vulnerabilities
osv·2022-06-08·CVSS 4.4
CVE-2022-21499 [MEDIUM] linux, linux-aws, linux-azure, linux-gcp, linux-gke, linux-ibm, linux-intel-iotg, linux-kvm, linux-lowlatency, linux-oracle, linux-raspi vulnerabilities
linux, linux-aws, linux-azure, linux-gcp, linux-gke, linux-ibm, linux-intel-iotg, linux-kvm, linux-lowlatency, linux-oracle, linux-raspi vulnerabilities
It was discovered that the Linux kernel did not properly restrict access to
the kernel debugger when booted in secure boot environments. A privileged
attacker could use this to bypass UEFI Secure Boot restrictions.
(CVE-2022-21499)
Aaron Adams discovered that the netfilter subsystem in the Linux kernel did
not properly handle the removal of stateful expressions in some situations,
leading to a use-after-free vulnerability. A local attacker could use this
to cause a denial of service (system crash) or execute arbitrary code.
(CVE-2022-1966)
Billy Jheng Bing Jhong discovered that the CIFS network file system
implementation in the Linux ke
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ff8376ade4f668130385839cef586a0990f8ef87https://security.netapp.com/advisory/ntap-20220901-0004/https://security.netapp.com/advisory/ntap-20220901-0008/https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ff8376ade4f668130385839cef586a0990f8ef87https://security.netapp.com/advisory/ntap-20220901-0004/https://security.netapp.com/advisory/ntap-20220901-0008/
2022-07-26
Published