AI-generated voices are weaponised by online trolls, how ChatGPT reflects who we are as a society, and social media is in the firing line again. All this and much much more is discussed in the latest edition of the “Smashing Security” podcast by computer security veterans Graham Cluley and Carole Theriault, joined this week by … Continue reading “Smashing Security podcast #309: Synthetic voices, ChatGPT reflections, and social skirmishes”
webkit2gtk3-2.38.5-1.fc36
Fix large memory allocation when uploading content.
Fix scrolling after a history navigation with PSON enabled.
Always update the active uri of WebKitFrame.
Fix several crashes and rendering issues.
Security fixes: CVE-2023-23529
Improve GStreamer multimedia playback across the board with improved codec selection logic, better handling of latency, and improving frame discard to avoid audio/video desynchronization, among other fixes.
Disable HLS media playback by default, which makes web sites use MSE instead. If needed WEBKIT_GST_ENABLE_HLS_SUPPORT=1 can be set in the environment to enable it back.
Disable threaded rendering in GTK4 builds by default, as it was causing crashes.
Fix MediaSession API not showing artwork images.
Fix MediaSession MPRIS usage when running inside a Flatpak sandbox.
Fix input element controls to correctly scale when applying a zoom factor different than the default.
Fix leakage of Web processes in certain situations.
Fix several crashes and rendering issues.
Security fixes: CVE-2023-23517, CVE-2023-23518, CVE-2022-42826, and many additional security issues
A report from identity and access management (IAM) vendor Okta says that zero trust and new types of security tooling are in increasingly widespread use, as businesses tackle a changing security landscape.
Kyle Zeng discovered that the sysctl implementation in the Linux kernel
contained a stack-based buffer overflow. A local attacker could use this to
cause a denial of service (system crash) or execute arbitrary code.
(CVE-2022-4378)
Tamás Koczka discovered that the Bluetooth L2CAP handshake implementation
in the Linux kernel contained multiple use-after-free vulnerabilities. A
physically proximate attacker could use this to cause a denial of service
(system crash) or possibly execute arbitrary code. (CVE-2022-42896)
Mingwei Zhang discovered that the KVM implementation for AMD processors in
the Linux kernel did not properly handle cache coherency with Secure
Encrypted Virtualization (SEV). A local attacker could possibly use this to
cause a denial of service (host system crash). (CVE-2022-0171)
It was discovered that a race condition existed in the Android Binder IPC
subsystem 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-2022-20421)
David Leadbeater discovered that the netfilter IRC protocol tracking
implementation in the Linux Kernel incorrectly handled certain message
payloads in some situations. A remote attacker could possibly use this to
cause a denial of service or bypass firewall filtering. (CVE-2022-2663)
It was discovered that the Intel 740 frame buffer driver in the Linux
kernel contained a divide by zero vulnerability. A local attacker could use
this to cause a denial of service (system crash). (CVE-2022-3061)
It was discovered that the sound subsystem in the Linux kernel contained a
race condition in some situations. A local attacker could use this to cause
a denial of service (system crash). (CVE-2022-3303)
It was discovered that a memory leak existed in the Unix domain socket
implementation of the Linux kernel. A local attacker could use this to
cause a denial of service (memory exhaustion). (CVE-2022-3543)
Gwnaun Jung discovered that the SFB packet scheduling 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-2022-3586)
It was discovered that the Bluetooth HCI implementation in the Linux kernel
did not properly deallocate memory in some situations. An attacker could
possibly use this cause a denial of service (memory exhaustion).
(CVE-2022-3619)
It was discovered that the hugetlb implementation in the Linux kernel
contained a race condition in some situations. A local attacker could use
this to cause a denial of service (system crash) or expose sensitive
information (kernel memory). (CVE-2022-3623)
It was discovered that the Broadcom FullMAC USB WiFi driver in the Linux
kernel did not properly perform bounds checking in some situations. A
physically proximate attacker could use this to craft a malicious USB
device that when inserted, could cause a denial of service (system crash)
or possibly execute arbitrary code. (CVE-2022-3628)
It was discovered that a use-after-free vulnerability existed in the
Bluetooth stack in the Linux kernel. A local attacker could use this to
cause a denial of service (system crash) or possibly execute arbitrary
code. (CVE-2022-3640)
It was discovered that the Xen netback driver in the Linux kernel did not
properly handle packets structured in certain ways. An attacker in a guest
VM could possibly use this to cause a denial of service (host NIC
availability). (CVE-2022-3643)
It was discovered that the NILFS2 file system implementation in the Linux
kernel did not properly deallocate memory in certain error conditions. An
attacker could use this to cause a denial of service (memory exhaustion).
(CVE-2022-3646)
Khalid Masum discovered that the NILFS2 file system implementation in the
Linux kernel did not properly handle certain error conditions, leading to a
use-after-free vulnerability. A local attacker could use this to cause a
denial of service or possibly execute arbitrary code. (CVE-2022-3649)
Jann Horn discovered a race condition existed in the Linux kernel when
unmapping VMAs in certain situations, resulting in possible use-after-free
vulnerabilities. A local attacker could possibly use this to cause a denial
of service (system crash) or execute arbitrary code. (CVE-2022-39188)
Hyunwoo Kim discovered that an integer overflow vulnerability existed in
the PXA3xx graphics driver in the Linux kernel. A local attacker could
possibly use this to cause a denial of service (system crash).
(CVE-2022-39842)
It was discovered that a race condition existed in the EFI capsule loader
driver 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-2022-40307)
Zheng Wang and Zhuorao Yang discovered that the RealTek RTL8712U wireless
driver 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-2022-4095)
It was discovered that a race condition existed in the SMSC UFX USB driver
implementation in the Linux kernel, leading to a use-after-free
vulnerability. A physically proximate attacker could use this to cause a
denial of service (system crash) or possibly execute arbitrary code.
(CVE-2022-41849)
It was discovered that a race condition existed in the Roccat HID driver 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-2022-41850)
Tamás Koczka discovered that the Bluetooth L2CAP implementation in the
Linux kernel did not properly initialize memory in some situations. A
physically proximate attacker could possibly use this to expose sensitive
information (kernel memory). (CVE-2022-42895)
It was discovered that the USB monitoring (usbmon) component in the Linux
kernel did not properly set permissions on memory mapped in to user space
processes. A local attacker could use this to cause a denial of service
(system crash) or possibly execute arbitrary code. (CVE-2022-43750)
It was discovered that an integer overflow vulnerability existed in the
Bluetooth subsystem in the Linux kernel. A physically proximate attacker
could use this to cause a denial of service (system crash).
(CVE-2022-45934)
It was discovered that the USB core subsystem in the Linux kernel did not
properly handle nested reset events. A local attacker with physical access
could plug in a specially crafted USB device to cause a denial of service
(kernel deadlock). (CVE-2022-4662)
Arnaud Gatignol, Quentin Minster, Florent Saudel and Guillaume Teissier
discovered that the KSMBD implementation in the Linux kernel did not
properly validate user-supplied data in some situations. An authenticated
attacker could use this to cause a denial of service (system crash), expose
sensitive information (kernel memory) or possibly execute arbitrary code.
(CVE-2022-47940)
It was discovered that a race condition existed in the qdisc 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-2023-0590)
It was discovered that a memory leak existed in the Unix domain socket
implementation of the Linux kernel. A local attacker could use this to
cause a denial of service (memory exhaustion). (CVE-2022-3543)
It was discovered that the Bluetooth HCI implementation in the Linux kernel
did not properly deallocate memory in some situations. An attacker could
possibly use this cause a denial of service (memory exhaustion).
(CVE-2022-3619)
It was discovered that the hugetlb implementation in the Linux kernel
contained a race condition in some situations. A local attacker could use
this to cause a denial of service (system crash) or expose sensitive
information (kernel memory). (CVE-2022-3623)
It was discovered that the Broadcom FullMAC USB WiFi driver in the Linux
kernel did not properly perform bounds checking in some situations. A
physically proximate attacker could use this to craft a malicious USB
device that when inserted, could cause a denial of service (system crash)
or possibly execute arbitrary code. (CVE-2022-3628)
It was discovered that a use-after-free vulnerability existed in the
Bluetooth stack in the Linux kernel. A local attacker could use this to
cause a denial of service (system crash) or possibly execute arbitrary
code. (CVE-2022-3640)
It was discovered that a race condition existed in the SMSC UFX USB driver
implementation in the Linux kernel, leading to a use-after-free
vulnerability. A physically proximate attacker could use this to cause a
denial of service (system crash) or possibly execute arbitrary code.
(CVE-2022-41849)
It was discovered that a race condition existed in the Roccat HID driver 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-2022-41850)
Tamás Koczka discovered that the Bluetooth L2CAP implementation in the
Linux kernel did not properly initialize memory in some situations. A
physically proximate attacker could possibly use this to expose sensitive
information (kernel memory). (CVE-2022-42895)
Arnaud Gatignol, Quentin Minster, Florent Saudel and Guillaume Teissier
discovered that the KSMBD implementation in the Linux kernel did not
properly validate user-supplied data in some situations. An authenticated
attacker could use this to cause a denial of service (system crash), expose
sensitive information (kernel memory) or possibly execute arbitrary code.
(CVE-2022-47940)
It was discovered that a race condition existed in the qdisc 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-2023-0590)
On February 14, 2023, Microsoft released more than 70 security patches as part of regular Patch Tuesday. Microsoft observed CVE-2023-21715, CVE-2023-23376, and CVE-2023-21823 were exploited in the wild.Why is this Significant?This is significant because three vulnerabilities (CVE-2023-21715, CVE-2023-23376, and CVE-2023-21823) were observed to have been exploited in the field as such corresponding patches should be applied as soon as possible.What is CVE-2023-21715?CVE-2023-23376 is a security feature bypass vulnerability in Microsoft Office and allows an attacker to bypass a security feature designed to block malicious macros. Exploiting this vulnerability requires a local authenticated user, and at in parallel a victim needs to be lured into downloading and opening a malicious file from the internet.The vulnerability has a CVSS base score of 7.3 and is rated important by Microsoft.What is CVE-2023-23376?CVE-2023-23376 is an elevation of privilege vulnerability in the Windows Common Log File System (CLFS). The vulnerability has a CVSS base score of 7.8 and is rated important by Microsoft.The vulnerability is due to an error when the vulnerable software handles a maliciously crafted application. A remote attacker may be able to exploit this to escalate their privileges on vulnerable systems. Since the vulnerability is a local privilege escalation, an attacker needs to have access to the victims’ network to exploit the vulnerability.What is CVE-2023-21823?CVE-2023-21823 is an elevation of privilege vulnerability in Windows Graphics Component that allows an attacker to gain SYSTEM privileges and execute commands as such upon successful exploitation. The vulnerability has a CVSS base score of 7.8 and is rated important by Microsoft..Reportedly Kevin Breen of Immersive Labs claimed that Microsoft OneNote was leveraged in observed attacks involving CVE-2023-21823.Note that a patch for this vulnerability may only be available via the Microsoft Store. For details, see the Appendix for a link to “CVE-2023-21823 (Microsoft)”.What is the Status of Protection?FortiGuard Labs released the following IPS signatures in version 22.495 for CVE-2023-23376 and CVE-2023-21823:MS.Windows.CVE-2023-23376.Privilege.Elevation (CVE-2023-23376) MS.Windows.Win32k.GDI.ExtTextOut.Privilege.Elevation (CVE-2023-21823)Default action for both signatures are set to “pass”.As of this writing, CVE-2023-21715 has no sufficient information that allows us to investigate coverage. This Threat Signal will be updated once new information becomes available.
Cross Site Request Forgery (CSRF) vulnerability in baijiacms 4.1.4, allows attackers to change the password or other information of an arbitrary account via index.php.
Double Free vulnerability in virtualsquare picoTCP v1.7.0 and picoTCP-NG v2.1 in modules/pico_fragments.c in function pico_fragments_reassemble, allows attackers to execute arbitrary code.
SQL Injection vulnerability in file homecontrolscart.class.php in UQCMS 2.1.3, allows attackers execute arbitrary commands via the cookie_cart parameter to /index.php/cart/num.
SQL Injection vulnerability in Kliqqi-CMS 2.0.2 in admin/admin_update_module_widgets.php in recordIDValue parameter, allows attackers to gain escalated privileges and execute arbitrary code.
