Tag
#linux
Intel's RAPL (Running Average Power Limit) feature, introduced by the Sandy Bridge microarchitecture, provides software insights into hardware energy consumption. To facilitate this, Intel introduced the powercap framework in Linux kernel 3.13, which reads values via relevant MSRs (model specific registers) and provides unprivileged userspace access via `sysfs`. As RAPL is an interface to access a hardware feature, it is only available when running on bare metal with the module compiled into the kernel. By 2019, it was realized that in some cases unprivileged access to RAPL readings could be exploited as a power-based side-channel against security features including AES-NI (potentially inside a SGX enclave) and KASLR (kernel address space layout randomization). Also known as the [PLATYPUS attack](https://platypusattack.com/), Intel assigned [CVE-2020-8694](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-8694) and [CVE-2020-8695](https://cve.mitre.org/cgi-bin/cvename.cgi?name=C...
Gentoo Linux Security Advisory 202310-20 - A vulnerability has been discovered in rxvt-unicode where data written to the terminal can lead to code execution. Versions greater than or equal to 9.30 are affected.
Gentoo Linux Security Advisory 202310-19 - A vulnerability has been discovered in Dovecot that can lead to a privilege escalation when master and non-master passdbs are used. Versions greater than or equal to 2.3.19.1-r1 are affected.
Debian Linux Security Advisory 5538-1 - Multiple security issues were discovered in Thunderbird, which could result in denial of service or the execution of arbitrary code.
Debian Linux Security Advisory 5537-1 - Several vulnerabilities have been discovered in the OpenJDK Java runtime, which may result in bypass of sandbox restrictions or denial of service.
Gentoo Linux Security Advisory 202310-18 - Multiple vulnerabilities have been discovered in Rack, the worst of which can lead to sequence injection in logging components. Versions greater than or equal to 2.2.3.1 are affected.
Gentoo Linux Security Advisory 202310-17 - Multiple vulnerabilities have been discovered in UnZip, the worst of which could lead to code execution. Versions greater than or equal to 6.0_p27 are affected.
Red Hat Security Advisory 2023-6022-01 - An update for the varnish:6 module is now available for Red Hat Enterprise Linux 8.2 Advanced Update Support, Red Hat Enterprise Linux 8.2 Telecommunications Update Service, and Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions. Issues addressed include a denial of service vulnerability.
Red Hat Security Advisory 2023-6021-01 - An update for the varnish:6 module is now available for Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.4 Telecommunications Update Service, and Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions. Issues addressed include a denial of service vulnerability.
Red Hat Security Advisory 2023-5992-01 - An update for the python27:2.7 module is now available for Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.4 Telecommunications Update Service, and Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions. Issues addressed include a bypass vulnerability.