Kyle Zeng discovered that the netfilter subsystem in the Linux kernel
contained a race condition in IP set operations in certain situations. A
local attacker could use this to cause a denial of service (system crash).
(CVE-2023-42756)
Alex Birnberg discovered that the netfilter subsystem in the Linux kernel
did not properly validate register length, leading to an out-of- bounds
write vulnerability. A local attacker could possibly use this to cause a
denial of service (system crash). (CVE-2023-4881)
It was discovered that the Quick Fair Queueing scheduler implementation in
the Linux kernel did not properly handle network packets in certain
conditions, 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-2023-4921)
Kevin Rich discovered that the netfilter subsystem in the Linux kernel did
not properly handle removal of rules from chain bindings in certain
circumstances, leading to a use-after-free vulnerability. A local attacker
could possibly use this to cause a denial of service (system crash) or
execute arbitrary code. (CVE-2023-5197)
More Stories
USN-7015-1: Python vulnerabilities
It was discovered that the Python email module incorrectly parsed email addresses that contain special characters. A remote attacker could...
USN-7014-1: nginx vulnerability
It was discovered that the nginx ngx_http_mp4 module incorrectly handled certain malformed mp4 files. In environments where the mp4 directive...
USN-7013-1: Dovecot vulnerabilities
It was discovered that Dovecot incorrectly handled a large number of address headers. A remote attacker could possibly use this...
USN-7012-1: curl vulnerability
Hiroki Kurosawa discovered that curl incorrectly handled certain OCSP responses. This could result in bad certificates not being checked properly,...
USN-7011-1: ClamAV vulnerabilities
It was discovered that ClamAV incorrectly handled certain PDF files. A remote attacker could possibly use this issue to cause...
USN-6560-3: OpenSSH vulnerability
USN-6560-2 fixed a vulnerability in OpenSSH. This update provides the corresponding update for Ubuntu 16.04 LTS. Original advisory details: It...