Nick Gregory discovered that the Linux kernel incorrectly handled network
offload functionality. A local attacker could use this to cause a denial of
service or possibly execute arbitrary code. (CVE-2022-25636)

Enrico Barberis, Pietro Frigo, Marius Muench, Herbert Bos, and Cristiano
Giuffrida discovered that hardware mitigations added by ARM to their
processors to address Spectre-BTI were insufficient. A local attacker could
potentially use this to expose sensitive information. (CVE-2022-23960)

It was discovered that the BPF verifier in the Linux kernel did not
properly restrict pointer types in certain situations. A local attacker
could use this to cause a denial of service (system crash) or possibly
execute arbitrary code. (CVE-2022-23222)

Max Kellermann discovered that the Linux kernel incorrectly handled Unix
pipes. A local attacker could potentially use this to modify any file that
could be opened for reading. (CVE-2022-0847)

Yiqi Sun and Kevin Wang discovered that the cgroups implementation in the
Linux kernel did not properly restrict access to the cgroups v1
release_agent feature. A local attacker could use this to gain
administrative privileges. (CVE-2022-0492)

William Liu and Jamie Hill-Daniel discovered that the file system context
functionality in the Linux kernel contained an integer underflow
vulnerability, leading to an out-of-bounds write. A local attacker could
use this to cause a denial of service (system crash) or execute arbitrary
code. (CVE-2022-0185)

Enrico Barberis, Pietro Frigo, Marius Muench, Herbert Bos, and Cristiano
Giuffrida discovered that hardware mitigations added by Intel to their
processors to address Spectre-BTI were insufficient. A local attacker could
potentially use this to expose sensitive information. (CVE-2022-0001)

Jann Horn discovered a race condition in the Unix domain socket
implementation in the Linux kernel that could result in a read-after-free.
A local attacker could use this to cause a denial of service (system crash)
or possibly execute arbitrary code. (CVE-2021-4083)

It was discovered that the NFS server implementation in the Linux kernel
contained an out-of-bounds write vulnerability. A local attacker could use
this to cause a denial of service (system crash) or possibly execute
arbitrary code. (CVE-2021-4090)

Kirill Tkhai discovered that the XFS file system implementation in the
Linux kernel did not calculate size correctly when pre-allocating space in
some situations. A local attacker could use this to expose sensitive
information. (CVE-2021-4155)

It was discovered that the AMD Radeon GPU driver in the Linux kernel did
not properly validate writes in the debugfs file system. A privileged
attacker could use this to cause a denial of service (system crash) or
possibly execute arbitrary code. (CVE-2021-42327)

Sushma Venkatesh Reddy discovered that the Intel i915 graphics driver in
the Linux kernel did not perform a GPU TLB flush in some situations. A
local attacker could use this to cause a denial of service or possibly
execute arbitrary code. (CVE-2022-0330)

Samuel Page discovered that the Transparent Inter-Process Communication
(TIPC) protocol implementation in the Linux kernel contained a stack-based
buffer overflow. A remote attacker could use this to cause a denial of
service (system crash) for systems that have a TIPC bearer configured.
(CVE-2022-0435)

It was discovered that the KVM implementation for s390 systems in the Linux
kernel did not properly prevent memory operations on PVM guests that were
in non-protected mode. A local attacker could use this to obtain
unauthorized memory write access. (CVE-2022-0516)

It was discovered that the ICMPv6 implementation in the Linux kernel did
not properly deallocate memory in certain situations. A remote attacker
could possibly use this to cause a denial of service (memory exhaustion).
(CVE-2022-0742)

It was discovered that the VMware Virtual GPU driver in the Linux kernel
did not properly handle certain failure conditions, leading to a stale
entry in the file descriptor table. A local attacker could use this to
expose sensitive information or possibly gain administrative privileges.
(CVE-2022-22942)

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It was discovered that the VFIO PCI driver in the Linux kernel did not
properly handle attempts to access disabled memory spaces. A local attacker
could use this to cause a denial of service (system crash).
(CVE-2020-12888)

Mathy Vanhoef discovered that the Linux kernel’s WiFi implementation did
not properly verify certain fragmented frames. A physically proximate
attacker could possibly use this issue to inject or decrypt packets.
(CVE-2020-26141)

Mathy Vanhoef discovered that the Linux kernel’s WiFi implementation
accepted plaintext fragments in certain situations. A physically proximate
attacker could use this issue to inject packets. (CVE-2020-26145)

It was discovered that a race condition existed in the Atheros Ath9k WiFi
driver in the Linux kernel. An attacker could possibly use this to expose
sensitive information (WiFi network traffic). (CVE-2020-3702)

It was discovered a race condition existed in the Unix domain socket
implementation in the Linux kernel, 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-2021-0920)

It was discovered that the IPv6 implementation in the Linux kernel
contained 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-2021-0935)

Zygo Blaxell discovered that the btrfs file system implementation in the
Linux kernel contained a race condition during certain cloning operations.
A local attacker could possibly use this to cause a denial of service
(system crash). (CVE-2021-28964)

Dan Carpenter discovered that the block device manager (dm) implementation
in the Linux kernel contained a buffer overflow in the ioctl for listing
devices. A privileged local attacker could use this to cause a denial of
service (system crash). (CVE-2021-31916)

It was discovered that the Option USB High Speed Mobile device driver in
the Linux kernel did not properly handle error conditions. A physically
proximate attacker could use this to cause a denial of service (system
crash) or possibly execute arbitrary code. (CVE-2021-37159)

It was discovered that the network packet filtering implementation in the
Linux kernel did not properly initialize information in certain
circumstances. A local attacker could use this to expose sensitive
information (kernel memory). (CVE-2021-39636)

Jann Horn discovered a race condition in the Unix domain socket
implementation in the Linux kernel that could result in a read-after-free.
A local attacker could use this to cause a denial of service (system crash)
or possibly execute arbitrary code. (CVE-2021-4083)

Luo Likang discovered that the FireDTV Firewire driver in the Linux kernel
did not properly perform bounds checking in some situations. A local
attacker could use this to cause a denial of service (system crash) or
possibly execute arbitrary code. (CVE-2021-42739)

Brendan Dolan-Gavitt discovered that the Marvell WiFi-Ex USB device driver
in the Linux kernel did not properly handle some error conditions. A
physically proximate attacker could use this to cause a denial of service
(system crash). (CVE-2021-43976)

Amit Klein discovered that the IPv4 implementation in the Linux kernel
could disclose internal state in some situations. An attacker could
possibly use this to expose sensitive information. (CVE-2021-45486)

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Danilo Ramos discovered that incorrect memory handling in zlib’s deflate
handling could result in denial of service or potentially the execution
of arbitrary code if specially crafted input is processed.

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It was discovered that the network traffic control implementation in the
Linux kernel contained 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-2022-1055)

It was discovered that the IPsec implementation in the Linux kernel did not
properly allocate enough memory when performing ESP transformations,
leading to a heap-based buffer overflow. A local attacker could use this to
cause a denial of service (system crash) or possibly execute arbitrary
code. (CVE-2022-27666)

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It was discovered that the IPsec implementation in the Linux kernel did not
properly allocate enough memory when performing ESP transformations,
leading to a heap-based buffer overflow. A local attacker could use this to
cause a denial of service (system crash) or possibly execute arbitrary
code.

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It was discovered that Tomcat incorrectly performed input verification.
A remote attacker could possibly use this issue to intercept sensitive
information. (CVE-2020-13943, CVE-2020-17527, CVE-2021-25122, CVE-2021-30640)

It was discovered that Tomcat did not properly deserialize untrusted data.
An attacker could possibly use this issue to execute arbitrary code.
(CVE-2020-9484, CVE-2021-33037)

It was discovered that Tomcat did not properly validate the input length. An
attacker could possibly use this to trigger an infinite loop, resulting in a
denial of service. (CVE-2020-9494, CVE-2021-25329, CVE-2021-41079)

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FEDORA-2022-10fd054d40

Packages in this update:

crun-1.4.4-1.fc34

Update description:

Security fix for CVE-2022-27650

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FortiGuard Labs is aware that an alleged Proof-of-Concept (POC) code for a new Remote Code Execution (RCE) vulnerability in Spring Core, part of the popular web open-source framework for Java called “Spring,” was made available to the public (the POC was later removed). Dubbed SpringShell (Spring4Shell), CVE-2022-22965 has been assigned to the vulnerability and an emergency fix was released on March 31st, 2022.Why is this Significant?This is significant because Spring Core is part of Spring Framework, one of the most popular JAVA frameworks used in the field and is very popular for enterprise applications. As such, wide exploitation of the vulnerability can impact users globally if the security update is not applied.What is the Vulnerability Detail?An insecure de-serialization exists in Spring Core Framework. The vulnerability is due to insufficient validation of user supplied inputs and could lead to remote code execution.The official advisory reads “A Spring MVC or Spring WebFlux application running on JDK 9+ may be vulnerable to remote code execution (RCE) via data binding. The specific exploit requires the application to run on Tomcat as a WAR deployment. If the application is deployed as a Spring Boot executable jar, i.e. the default, it is not vulnerable to the exploit. However, the nature of the vulnerability is more general, and there may be other ways to exploit it”.Has the Vendor Released an Advisory?An advisory has been published by both Spring and VMware, who supports Spring. See the Appendix for a link to “Spring Framework RCE, Early Announcement” and “CVE-2022-22965: Spring Framework RCE via Data Binding on JDK 9+”.What Versions of Spring Core are Vulnerable?The official advisory states that the following prerequisites for the exploit:JDK 9 or higherApache Tomcat as the Servlet containerPackaged as a traditional WAR (in contrast to a Spring Boot executable jar)spring-webmvc or spring-webflux dependencySpring Framework versions 5.3.0 to 5.3.17, 5.2.0 to 5.2.19, and older versionsHas a CVE been Assigned to the Vulnerability?CVE-2022-22965 has been assigned to the vulnerability.There is a lot of online chatter about SpringShell being related to CVE-2022-22963 or CVE-2022-27772, but that is not the case.CVE-2022-22963 is a vulnerability in Spring Cloud and was patched on March 29, 2022.CVE-2022-27772 is a vulnerability in Spring Boot that allows temporary directory hijacking.Has the Vendor Released a Patch?Yes, the fix was released on March 31, 2022 for the following versions of Spring Framework:5.3.185.2.20What is the Status of Coverage?FortiGuard Labs provides the following AV coverage based on available SpringShell POCs:Python/SpingShell.A!exploitFortiGuard Labs is currently investigating for IPS coverage. This Threat Signal will be updated when coverage becomes available.

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FEDORA-2022-814ee0c43b

Packages in this update:

mod_auth_openidc-2.4.9.4-1.fc36

Update description:

mod_auth_openidc 2.4.9.4 security update

CVE-2021-39191 mod_auth_openidc: open redirect by supplying a crafted URL in the target_link_uri parameter

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