VDB
CVE-2020-14308
CVE-2020-14308
PUBLISHED
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.
EPSS 0.03% · 10.4th percentile
Risk Scores
EPSS Score
0.03%
10.4th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:20.04:LTS | grub2-unsigned | 0, 2.04-1ubuntu44, 2.04-1ubuntu44.2 |
| Ubuntu:16.04:LTS | grub2 | 2.02~beta2-36ubuntu3.8, 2.02~beta2-36ubuntu3.18, 2.02~beta2-36ubuntu3.17 |
| Ubuntu:20.04:LTS | grub2 | 2.04-1ubuntu26, 2.04-1ubuntu23, 2.04-1ubuntu16 |
| Ubuntu:Pro:14.04:LTS | grub2-signed | 1.23, 1.34.18, 1.34.17 |
| Ubuntu:Pro:14.04:LTS | grub2 | 2.02~beta2-9ubuntu1.16, 2.02~beta2-9ubuntu1.17, * |
| Ubuntu:18.04:LTS | grub2-signed | 1.93, 1.85, 1.87 |
| Ubuntu:16.04:LTS | grub2-unsigned | 2.04-1ubuntu44.1.2, 2.04-1ubuntu44, 2.04-1ubuntu44.1 |
| Ubuntu:16.04:LTS | grub2-signed | 1.66.20, 1.66.16, 1.66.19 |
| Ubuntu:18.04:LTS | grub2-unsigned | 2.04-1ubuntu44.1.2, 0, 2.04-1ubuntu44 |
| Ubuntu:18.04:LTS | grub2 | 2.02-2ubuntu8.3, 2.02-2ubuntu8.14, 2.02-2ubuntu8.2 |
| Ubuntu:20.04:LTS | grub2-signed | 1.133, 1.134, 1.135 |
Exploit Intelligence
- CVE-2008-5161 OpenSSH 4.7p1 Audit Helper Automates version checking and credential auditing of legacy OpenSSH 4.7p1 (Debian-8ubuntu1) targets by driving Metasploit’s auxiliary/scanner/ssh/ssh_login module from Python via pwntools. (github-poc)
- CVE-2008-5161 OpenSSH 4.7p1 Audit Helper Automates version checking and credential auditing of legacy OpenSSH 4.7p1 (Debian-8ubuntu1) targets by driving Metasploit’s auxiliary/scanner/ssh/ssh_login module from Python via pwntools. (github-poc)
- CVE-2008-5161 OpenSSH 4.7p1 Audit Helper Automates version checking and credential auditing of legacy OpenSSH 4.7p1 (Debian-8ubuntu1) targets by driving Metasploit’s auxiliary/scanner/ssh/ssh_login module from Python via pwntools. (github-poc)
- CVE-2008-5161 OpenSSH 4.7p1 Audit Helper Automates version checking and credential auditing of legacy OpenSSH 4.7p1 (Debian-8ubuntu1) targets by driving Metasploit’s auxiliary/scanner/ssh/ssh_login module from Python via pwntools. (github-poc)
- CVE-2008-5161 OpenSSH 4.7p1 Audit Helper Automates version checking and credential auditing of legacy OpenSSH 4.7p1 (Debian-8ubuntu1) targets by driving Metasploit’s auxiliary/scanner/ssh/ssh_login module from Python via pwntools. (github-poc)
- CVE-2008-5161 OpenSSH 4.7p1 Audit Helper Automates version checking and credential auditing of legacy OpenSSH 4.7p1 (Debian-8ubuntu1) targets by driving Metasploit’s auxiliary/scanner/ssh/ssh_login module from Python via pwntools. (github-poc)
- CVE-2008-5161 OpenSSH 4.7p1 Audit Helper Automates version checking and credential auditing of legacy OpenSSH 4.7p1 (Debian-8ubuntu1) targets by driving Metasploit’s auxiliary/scanner/ssh/ssh_login module from Python via pwntools. (github-poc)
Timeline
- Jul 29, 2020 CVE Published
- Apr 14, 2021 EPSS Score
- Jun 23, 2021 EPSS Score
- Aug 24, 2021 EPSS Score
- Oct 26, 2021 EPSS Score
- Jan 6, 2022 EPSS Score
- Feb 4, 2022 EPSS Score
- Feb 28, 2022 EPSS Score
- Apr 1, 2022 EPSS Score
- May 1, 2022 EPSS Score
- Jul 3, 2022 EPSS Score
- Sep 4, 2022 EPSS Score
References
- https://ubuntu.com/security/CVE-2020-14308 third-party-advisory
- https://www.eclypsium.com/2020/07/29/theres-a-hole-in-the-boot/ third-party-advisory
- https://wiki.ubuntu.com/SecurityTeam/KnowledgeBase/GRUB2SecureBootBypass third-party-advisory
- https://www.openwall.com/lists/oss-security/2020/07/29/3 third-party-advisory
- https://lists.gnu.org/archive/html/grub-devel/2020-07/msg00034.html third-party-advisory
- https://ubuntu.com/security/notices/USN-4432-1 vendor-advisory
- https://www.cve.org/CVERecord?id=CVE-2020-14308 third-party-advisory