Test ID:	1.3.6.1.4.1.25623.1.0.704867
Category:	Debian Local Security Checks
Title:	Debian: Security Advisory (DSA-4867-1)
Summary:	The remote host is missing an update for the Debian 'grub2' package(s) announced via the DSA-4867-1 advisory.
Description:	Summary: The remote host is missing an update for the Debian 'grub2' package(s) announced via the DSA-4867-1 advisory. Vulnerability Insight: 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 [link moved to references] 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: [link moved to references] Affected Software/OS: 'grub2' package(s) on Debian 10. Solution: Please install the updated package(s). CVSS Score: 7.2 CVSS Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C
Cross-Ref:	Common Vulnerability Exposure (CVE) ID: CVE-2020-14372 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZWZ36QK4IKU6MWDWNOOWKPH3WXZBHT2R/ https://security.gentoo.org/glsa/202104-05 https://access.redhat.com/security/vulnerabilities/RHSB-2021-003 https://bugzilla.redhat.com/show_bug.cgi?id=1873150 Common Vulnerability Exposure (CVE) ID: CVE-2020-25632 https://bugzilla.redhat.com/show_bug.cgi?id=1879577 Common Vulnerability Exposure (CVE) ID: CVE-2020-25647 https://bugzilla.redhat.com/show_bug.cgi?id=1886936 Common Vulnerability Exposure (CVE) ID: CVE-2020-27749 https://bugzilla.redhat.com/show_bug.cgi?id=1899966 Common Vulnerability Exposure (CVE) ID: CVE-2020-27779 https://bugzilla.redhat.com/show_bug.cgi?id=1900698 Common Vulnerability Exposure (CVE) ID: CVE-2021-20225 https://bugzilla.redhat.com/show_bug.cgi?id=1924696 Common Vulnerability Exposure (CVE) ID: CVE-2021-20233 https://bugzilla.redhat.com/show_bug.cgi?id=1926263
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