A use-after-free vulnerability in the Linux kernel's netfilter: nftables component can be exploited to achieve local privilege escalation.
The nftverdictinit() function allows positive values as drop error within the hook verdict, and hence the nfhookslow() function can cause a double free vulnerability when NFDROP is issued with a drop error which resembles NFACCEPT.
We recommend upgrading past commit f342de4e2f33e0e39165d8639387aa6c19dff660.
A flaw was found in X.Org server. Both DeviceFocusEvent and the XIQueryPointer reply contain a bit for each logical button currently down. Buttons can be arbitrarily mapped to any value up to 255, but the X.Org Server was only allocating space for the device's particular number of buttons, leading to a heap overflow if a bigger value was used.
A flaw was found in the X.Org server. The cursor code in both Xephyr and Xwayland uses the wrong type of private at creation. It uses the cursor bits type with the cursor as private, and when initiating the cursor, that overwrites the XSELINUX context.
A flaw was found in the X.Org server. The GLX PBuffer code does not call the XACE hook when creating the buffer, leaving it unlabeled. When the client issues another request to access that resource (as with a GetGeometry) or when it creates another resource that needs to access that buffer, such as a GC, the XSELINUX code will try to use an object that was never labeled and crash because the SID is NULL.
A flaw was found in PostgreSQL that allows authenticated database users to execute arbitrary code through missing overflow checks during SQL array value modification. This issue exists due to an integer overflow during array modification where a remote user can trigger the overflow by providing specially crafted data. This enables the execution of arbitrary code on the target system, allowing users to write arbitrary bytes to memory and extensively read the server's memory.
Description: Due to a buffer overflow bug Squid is vulnerable to a Denial of Service attack against HTTP Digest Authentication
Reference: https://github.com/squid-cache/squid/security/advisories/GHSA-phqj-m8gv-cq4g
Affected versions: 3.2.0.1-5.9, 6.0-6.3
A out-of-bounds write flaw was found in the xorg-x11-server. This issue occurs due to an incorrect calculation of a buffer offset when copying data stored in the heap in the XIChangeDeviceProperty function in Xi/xiproperty.c and in RRChangeOutputProperty function in randr/rrproperty.c, allowing for possible escalation of privileges or denial of service.
A Cross-site request forgery vulnerability exists in ipa/session/loginpassword in all supported versions of IPA. This flaw allows an attacker to trick the user into submitting a request that could perform actions as the user, resulting in a loss of confidentiality and system integrity. During community penetration testing it was found that for certain HTTP end-points FreeIPA does not ensure CSRF protection. Due to implementation details one cannot use this flaw for reflection of a cookie representing already logged-in user. An attacker would always have to go through a new authentication attempt.
A random memory access flaw was found in the Linux kernel's GPU i915 kernel driver functionality in the way a user may run malicious code on the GPU. This flaw allows a local user to crash the system or escalate their privileges on the system.
A Local Privilege Escalation vulnerability (from any user to root) was found in polkit's pkexec, a SUID-root program that is installed by default on every major Linux distribution.
A crafted request uri-path can cause modproxy to forward the request to an origin server choosen by the remote user. This issue affects Apache HTTP Server 2.4.48 and earlier.
A flaw was found in libhivex. A stack overflow occurs as the children of each listed node grows. This causes the getchildren function to continue calling until it eventually overflows the stack and causes the program to crash.
References:
https://github.com/libguestfs/hivex/commit/771728218dac2fbf6997a7e53225e75a4c6b7255 https://listman.redhat.com/archives/libguestfs/2021-August/msg00002.html
A flaw was found in grub2 in versions prior to 2.06. Setparamprefix() in the menu rendering code performs a length calculation on the assumption that expressing a quoted single quote will require 3 characters while it actually requires 4 characters which allows an attacker to corrupt memory by one byte for each quote in the input. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
A flaw was found in grub2 in versions prior to 2.06. The option parser allows an attacker to write past the end of a heap-allocated buffer by calling certain commands with a large number of specific short forms of options. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
A vulnerability was found in WebKit. The flaw is triggered when processing maliciously crafted web content that may lead to arbitrary code execution. Improved memory handling addresses the multiple memory corruption issues.
Google Chromium V8 Engine contains a type confusion vulnerability allows a remote attacker to potentially exploit heap corruption via a crafted HTML page. This vulnerability could affect multiple web browsers that utilize Chromium, including, but not limited to, Google Chrome, Microsoft Edge, and Opera.
An use after free flaw was found in the speech component of the Chromium browser.
Upstream bug(s):
https://code.google.com/p/chromium/issues/detail?id=1043603
External References:
https://chromereleases.googleblog.com/2020/02/stable-channel-update-for-desktop18.html
A type confusion flaw was found in the V8 component of the Chromium browser.
Upstream bug(s):
https://code.google.com/p/chromium/issues/detail?id=1051017
External References:
https://chromereleases.googleblog.com/2020/02/stable-channel-update-for-desktop18.html
An use after free flaw was found in the WebAudio component of the Chromium browser.
Upstream bug(s):
https://code.google.com/p/chromium/issues/detail?id=1048473
External References:
https://chromereleases.googleblog.com/2020/02/stable-channel-update-for-desktop18.html
Adobe Flash Player versions 32.0.0.321 and earlier, 32.0.0.314 and earlier, 32.0.0.321 and earlier, and 32.0.0.255 and earlier have a type confusion vulnerability. Successful exploitation could lead to arbitrary code execution.
An inappropriate implementation flaw was found in the JavaScript component of the Chromium browser.
Upstream bug(s):
https://code.google.com/p/chromium/issues/detail?id=1029576
External References:
https://chromereleases.googleblog.com/2020/02/stable-channel-update-for-desktop.html
An insufficient data validation flaw was found in the streams component of the Chromium browser.
Upstream bug(s):
https://code.google.com/p/chromium/issues/detail?id=1031895
External References:
https://chromereleases.googleblog.com/2020/02/stable-channel-update-for-desktop.html
An use after free flaw was found in the audio component of the Chromium browser.
Upstream bug(s):
https://code.google.com/p/chromium/issues/detail?id=1042254
External References:
https://chromereleases.googleblog.com/2020/02/stable-channel-update-for-desktop.html
An inappropriate implementation flaw was found in the Blink component of the Chromium browser.
Upstream bug(s):
https://code.google.com/p/chromium/issues/detail?id=1024256
External References:
https://chromereleases.googleblog.com/2020/02/stable-channel-update-for-desktop.html
An insufficient policy enforcement flaw was found in the CORS component of the Chromium browser.
Upstream bug(s):
https://code.google.com/p/chromium/issues/detail?id=1026546
External References:
https://chromereleases.googleblog.com/2020/02/stable-channel-update-for-desktop.html
An incorrect security ui flaw was found in the Omnibox component of the Chromium browser.
Upstream bug(s):
https://code.google.com/p/chromium/issues/detail?id=1006012
External References:
https://chromereleases.googleblog.com/2020/02/stable-channel-update-for-desktop.html
An inappropriate implementation flaw was found in the CORS component of the Chromium browser.
Upstream bug(s):
https://code.google.com/p/chromium/issues/detail?id=1038036
External References:
https://chromereleases.googleblog.com/2020/02/stable-channel-update-for-desktop.html
An uninitialized use flaw was found in the PDFium component of the Chromium browser.
Upstream bug(s):
https://code.google.com/p/chromium/issues/detail?id=1032090
External References:
https://chromereleases.googleblog.com/2020/02/stable-channel-update-for-desktop.html
An insufficient policy enforcement flaw was found in the downloads component of the Chromium browser.
Upstream bug(s):
https://code.google.com/p/chromium/issues/detail?id=1029375
External References:
https://chromereleases.googleblog.com/2020/02/stable-channel-update-for-desktop.html
An incorrect security ui flaw was found in the sharing component of the Chromium browser.
Upstream bug(s):
https://code.google.com/p/chromium/issues/detail?id=1027408
External References:
https://chromereleases.googleblog.com/2020/02/stable-channel-update-for-desktop.html