Security Leftovers
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A local root kernel vulnerability
Commit 8cae8cd89f05 went into the mainline kernel repository on July 19; it puts a limit on the size of buffers allocated in the seq_file mechanism and mentions "int overflow pitfalls".
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[oss-security] CVE-2021-33909: size_t-to-int vulnerability in Linux's filesystem layer
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Security updates for Tuesday
Security updates have been issued by Debian (kernel, libjdom1-java, rabbitmq-server, and systemd), Fedora (glibc), Gentoo (libpano13, libslirp, mpv, pjproject, pycharm-community, and rpm), Mageia (glibc, libuv, mbedtls, rvxt-unicode, mxrvt, eterm, tomcat, and zziplib), openSUSE (dbus-1, firefox, go1.15, lasso, nodejs10, nodejs12, nodejs14, and sqlite3), SUSE (go1.15), and Ubuntu (containerd).
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Netgate® Releases TNSR® High Performance Router Version 21.07
During this development period, Netgate also began the effort to move the underlying OS base from CentOS to Ubuntu, in response to the recently announced shift from CentOS Linux to CentOS Stream. The company expects to have TNSR on Ubuntu commercially ready for users in November.
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today's howtos
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Nasty Linux systemd security bug revealed
Nasty Linux systemd security bug revealed
SystemD
New Linux kernel bug lets you get root on most modern distros
Conflating "Linux" with systemd
Researchers flag 7-years-old privilege escalation flaw in Linux kernel (CVE-2021-33909)
Dan Goodin
Two-for-Tuesday vulnerabilities send Windows and Linux users scrambling [Ed: Dan Goodin interjecting extra drama, comparing an OS with back doors to this systemd bug]
More hysteria
Patch now: Linux file system security hole, dubbed Sequoia, can take over systems
New Windows and Linux Flaws Give Attackers Highest System Privileges
Root kernel vulnerability threatens many Linux distributions
Root kernel vulnerability threatens many Linux distributions [Ed: AFAIK, systemd is NOT a kernel (yet)]
The Terrible Tuesday For Both Linux And Windows Sysadmins
The Terrible Tuesday For Both Linux And Windows Sysadmins