drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Mehrere Probleme in grub2
Name: |
Mehrere Probleme in grub2 |
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ID: |
DSA-4867-1 |
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Distribution: |
Debian |
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Plattformen: |
Debian buster |
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Datum: |
Di, 2. März 2021, 20:39 |
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Referenzen: |
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-14372
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-27779
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-20233
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-25632
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-25647
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-20225
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-27749 |
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Applikationen: |
GRUB |
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Originalnachricht |
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512
- ------------------------------------------------------------------------- Debian Security Advisory DSA-4867-1 security@debian.org https://www.debian.org/security/ Salvatore Bonaccorso March 02, 2021 https://www.debian.org/security/faq - -------------------------------------------------------------------------
Package : grub2 CVE ID : CVE-2020-14372 CVE-2020-25632 CVE-2020-25647 CVE-2020-27749 CVE-2020-27779 CVE-2021-20225 CVE-2021-20233
Several vulnerabilities have been discovered in the GRUB2 bootloader.
CVE-2020-14372
It was discovered that the acpi command allows a privileged user to load crafted ACPI tables when Secure Boot is enabled.
CVE-2020-25632
A use-after-free vulnerability was found in the rmmod command.
CVE-2020-25647
An out-of-bound write vulnerability was found in the grub_usb_device_initialize() function, which is called to handle USB device initialization.
CVE-2020-27749
A stack buffer overflow flaw was found in grub_parser_split_cmdline.
CVE-2020-27779
It was discovered that the cutmem command allows a privileged user to remove memory regions when Secure Boot is enabled.
CVE-2021-20225
A heap out-of-bounds write vulnerability was found in the short form option parser.
CVE-2021-20233
A heap out-of-bound write flaw was found caused by mis-calculation of space required for quoting in the menu rendering.
Further detailed information can be found at https://www.debian.org/security/2021-GRUB-UEFI-SecureBoot
For the stable distribution (buster), these problems have been fixed in version 2.02+dfsg1-20+deb10u4.
We recommend that you upgrade your grub2 packages.
For the detailed security status of grub2 please refer to its security tracker page at: https://security-tracker.debian.org/tracker/grub2
Further information about Debian Security Advisories, how to apply these updates to your system and frequently asked questions can be found at: https://www.debian.org/security/
Mailing list: debian-security-announce@lists.debian.org -----BEGIN PGP SIGNATURE-----
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