CVE-2020-14308MEDIUM
Description
In grub2 versions before 2.06 the grub memory allocator doesn't check for possible arithmetic overflows on the requested allocation size. This leads the function to return invalid memory allocations which can be further used to cause possible integrity, confidentiality and availability impacts during the boot process.
References
https://bugzilla.redhat.com/show_bug.cgi?id=1852009
http://www.openwall.com/lists/oss-security/2020/07/29/3
https://security.netapp.com/advisory/ntap-20200731-0008/
https://usn.ubuntu.com/4432-1/
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00017.html
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00016.html
Details
Source: MITRE
Published: 2020-07-29
Updated: 2021-05-01
Type: CWE-190
Risk Information
CVSS v2.0
Base Score: 4.4
Vector: AV:L/AC:M/Au:N/C:P/I:P/A:P
Impact Score: 6.4
Exploitability Score: 3.4
Severity: MEDIUM
CVSS v3.0
Base Score: 6.4
Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
Impact Score: 5.9
Exploitability Score: 0.5
Severity: MEDIUM
Vulnerable Software
Configuration 1
OR
Tenable Plugins
| ID | Name | Product | Family | Severity |
|---|---|---|---|---|
| 149217 | GLSA-202104-05 : GRUB: Multiple vulnerabilities | Nessus | Gentoo Local Security Checks | high |
| 147445 | EulerOS Virtualization 2.9.1 : grub2 (EulerOS-SA-2021-1601) | Nessus | Huawei Local Security Checks | medium |
| 147274 | NewStart CGSL CORE 5.04 / MAIN 5.04 : grub2 Multiple Vulnerabilities (NS-SA-2021-0008) | Nessus | NewStart CGSL Local Security Checks | medium |
| 146030 | CentOS 8 : grub2 (CESA-2020:3216) | Nessus | CentOS Local Security Checks | medium |
| 140948 | EulerOS Virtualization for ARM 64 3.0.6.0 : grub2 (EulerOS-SA-2020-2000) | Nessus | Huawei Local Security Checks | medium |
| 139956 | EulerOS 2.0 SP8 : grub2 (EulerOS-SA-2020-1853) | Nessus | Huawei Local Security Checks | medium |
| 139449 | openSUSE Security Update : grub2 (openSUSE-2020-1169) | Nessus | SuSE Local Security Checks | medium |
| 139448 | openSUSE Security Update : grub2 (openSUSE-2020-1168) | Nessus | SuSE Local Security Checks | medium |
| 139365 | Ubuntu 16.04 LTS / 18.04 LTS / 20.04 : GRUB2 regression (USN-4432-2) | Nessus | Ubuntu Local Security Checks | medium |
| 139294 | RHEL 7 : grub2 (RHSA-2020:3274) | Nessus | Red Hat Local Security Checks | medium |
| 139288 | RHEL 7 : grub2 (RHSA-2020:3271) | Nessus | Red Hat Local Security Checks | medium |
| 139287 | RHEL 7 : grub2 (RHSA-2020:3276) | Nessus | Red Hat Local Security Checks | medium |
| 139284 | RHEL 7 : grub2 (RHSA-2020:3273) | Nessus | Red Hat Local Security Checks | medium |
| 139283 | RHEL 7 : grub2 (RHSA-2020:3275) | Nessus | Red Hat Local Security Checks | medium |
| 139243 | Photon OS 2.0: Grub2 PHSA-2020-2.0-0267 | Nessus | PhotonOS Local Security Checks | medium |
| 139242 | Photon OS 1.0: Grub2 PHSA-2020-1.0-0311 | Nessus | PhotonOS Local Security Checks | medium |
| 139239 | Windows Security Feature Bypass in Secure Boot (BootHole) | Nessus | Windows | medium |
| 139236 | CentOS 7 : grub2 (CESA-2020:3217) | Nessus | CentOS Local Security Checks | medium |
| 139198 | RHEL 7 : grub2 (RHSA-2020:3217) | Nessus | Red Hat Local Security Checks | medium |
| 139194 | RHEL 8 : grub2 (RHSA-2020:3216) | Nessus | Red Hat Local Security Checks | medium |
| 139193 | RHEL 8 : grub2 (RHSA-2020:3223) | Nessus | Red Hat Local Security Checks | medium |
| 139192 | RHEL 8 : grub2 (RHSA-2020:3227) | Nessus | Red Hat Local Security Checks | medium |
| 139179 | Ubuntu 16.04 LTS / 18.04 LTS / 20.04 : GRUB 2 vulnerabilities (USN-4432-1) | Nessus | Ubuntu Local Security Checks | medium |
| 139178 | SUSE SLES12 Security Update : grub2 (SUSE-SU-2020:2079-1) | Nessus | SuSE Local Security Checks | medium |
| 139177 | SUSE SLES12 Security Update : grub2 (SUSE-SU-2020:2078-1) | Nessus | SuSE Local Security Checks | medium |
| 139176 | SUSE SLED15 / SLES15 Security Update : grub2 (SUSE-SU-2020:2077-1) | Nessus | SuSE Local Security Checks | medium |
| 139175 | SUSE SLES12 Security Update : grub2 (SUSE-SU-2020:2076-1) | Nessus | SuSE Local Security Checks | medium |
| 139174 | SUSE SLED15 / SLES15 Security Update : grub2 (SUSE-SU-2020:2074-1) | Nessus | SuSE Local Security Checks | medium |
| 139173 | SUSE SLES15 Security Update : grub2 (SUSE-SU-2020:2073-1) | Nessus | SuSE Local Security Checks | medium |
| 139165 | Oracle Linux 8 : grub2 (ELSA-2020-5786) | Nessus | Oracle Linux Local Security Checks | high |
| 139164 | Oracle Linux 7 : grub2 (ELSA-2020-5782) | Nessus | Oracle Linux Local Security Checks | high |
| 139099 | Debian DSA-4735-1 : grub2 - security update | Nessus | Debian Local Security Checks | medium |