drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Mehrere Probleme in Linux
Name: |
Mehrere Probleme in Linux |
|
ID: |
USN-5015-1 |
|
Distribution: |
Ubuntu |
|
Plattformen: |
Ubuntu 20.04 LTS |
|
Datum: |
Mi, 21. Juli 2021, 07:50 |
|
Referenzen: |
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3573
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3564
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-33909
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3587
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-28691 |
|
Applikationen: |
Linux |
|
Originalnachricht |
--===============6179770820389341365== Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="t9TbbIlPLOZvq2vl" Content-Disposition: inline
--t9TbbIlPLOZvq2vl Content-Type: text/plain; charset=us-ascii Content-Disposition: inline
========================================================================== Ubuntu Security Notice USN-5015-1 July 20, 2021
linux-oem-5.10 vulnerabilities ==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 20.04 LTS
Summary:
Several security issues were fixed in the Linux kernel.
Software Description: - linux-oem-5.10: Linux kernel for OEM systems
Details:
It was discovered that the virtual file system implementation in the Linux kernel contained an unsigned to signed integer conversion error. A local attacker could use this to cause a denial of service (system crash) or execute arbitrary code. (CVE-2021-33909)
Michael Brown discovered that the Xen netback driver in the Linux kernel did not properly handle malformed packets from a network PV frontend, leading to a use-after-free vulnerability. An attacker in a guest VM could use this to cause a denial of service or possibly execute arbitrary code. (CVE-2021-28691)
It was discovered that the bluetooth subsystem in the Linux kernel did not properly handle HCI device initialization failure, leading to a double-free vulnerability. An attacker could use this to cause a denial of service or possibly execute arbitrary code. (CVE-2021-3564)
It was discovered that the bluetooth subsystem in the Linux kernel did not properly handle HCI device detach events, leading to a use-after-free vulnerability. An attacker could use this to cause a denial of service or possibly execute arbitrary code. (CVE-2021-3573)
It was discovered that the NFC implementation in the Linux kernel did not properly handle failed connect events leading to a NULL pointer dereference. A local attacker could use this to cause a denial of service. (CVE-2021-3587)
Update instructions:
The problem can be corrected by updating your system to the following package versions:
Ubuntu 20.04 LTS: linux-image-5.10.0-1038-oem 5.10.0-1038.40 linux-image-oem-20.04 5.10.0.1038.40 linux-image-oem-20.04b 5.10.0.1038.40
After a standard system update you need to reboot your computer to make all the necessary changes.
ATTENTION: Due to an unavoidable ABI change the kernel updates have been given a new version number, which requires you to recompile and reinstall all third party kernel modules you might have installed. Unless you manually uninstalled the standard kernel metapackages (e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual, linux-powerpc), a standard system upgrade will automatically perform this as well.
References: https://ubuntu.com/security/notices/USN-5015-1 CVE-2021-28691, CVE-2021-33909, CVE-2021-3564, CVE-2021-3573, CVE-2021-3587
Package Information: https://launchpad.net/ubuntu/+source/linux-oem-5.10/5.10.0-1038.40
--t9TbbIlPLOZvq2vl Content-Type: application/pgp-signature; name="signature.asc"
-----BEGIN PGP SIGNATURE-----
iQIzBAABCgAdFiEEBAJL1M8q+hI0VIn8jRkUtPPTt5UFAmD3UyIACgkQjRkUtPPT t5WR7w//ZiKxY1MBZd0YhPICSePiD3BKwTXhO1uefLBPeU8yoPRUMvTl26IGd/gk 4jQDlpuzFR0JjgT6rtvCB6aMJiT3LIxWTBxWIRaH7OhzsHGKFEudLW3PjLqytAaK K/j7PyMlXWx8ap99qmhdp5jtTF2DO0DPNO7qn/XLXd+HlV7FCQCFSzSap5VdvPqK lINDuxvkQvmFIpdTMkzaQis6Yy+4HBIw8F3RRaeKL6yslbCET6YAYaQ+pA3M0RKg qdviTZBy9Y/zlqCozfC9UWIJTmAd+q7t67wQh0JA5PKKvBYV8LiM8zc4i3y3YO5E x3ih5N/EvCXJsKdpe+aEQvd0d0ElUBBG/Yed9AQKcNNziOcBQbwJCq750C/YBAaR nmiYCfe/sU/VNh2bnt8XRBcib72sxdAJ1EVz0xS7XWUpgAxXuB95B3slwbBEcHM6 bStP6j7lDOYejLmFJw4ccBE/1+9U8D1W40pcOhjuxQ0B+A+9PzJD4zo+5LNStnGi quVQR89+SjF9imXriiyUWZC1o0G2RULEjGpo6iD+j9efj2GFWRUR9HPhQ2tieOTX 0Dx6aXUUJtKAgqTZjKjbYuZZY7mkk9T+DgG1dQCocq5JODineaS6PMK3+V8zY05i Vcf59rhcs9Az3BU++iYvjt9zA3A8/qT5s+piJwkhOQUMSVgNkUw= =wcj1 -----END PGP SIGNATURE-----
--t9TbbIlPLOZvq2vl--
--===============6179770820389341365== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Content-Disposition: inline
-- ubuntu-security-announce mailing list ubuntu-security-announce@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-security-announce
|
|
|
|