CVE-2020-14310
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I. Basic Information for CVE-2020-14310
Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
There is an issue on grub2 before version 2.06 at function read_section_as_string(). It expects a font name to be at max UINT32_MAX - 1 length in bytes but it doesn't verify it before proceed with buffer allocation to read the value from the font value. An attacker may leverage that by crafting a malicious font file which has a name with UINT32_MAX, leading to read_section_as_string() to an arithmetic overflow, zero-sized allocation and further heap-based buffer overflow.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
整数溢出或超界折返
Source: NVD (National Vulnerability Database)
Vulnerability Title
grub2 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
grub2是GNU社区的一款Linux系统引导程序。 grub2 2.06之前版本中的‘read_section_as_string()’函数存在输入验证错误漏洞。该漏洞源于网络系统或产品未对输入的数据进行正确的验证。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| The Grub2 Project | grub2 | 2.06 | - |
II. Public POCs for CVE-2020-14310
| # | POC Description | Source Link | Shenlong Link |
|---|
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- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-14310x_refsource_CONFIRM
- http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00017.htmlvendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00016.htmlvendor-advisoryx_refsource_SUSE
- https://nvd.nist.gov/vuln/detail/CVE-2020-14310
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Same weakness: CWE-190
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V. Comments for CVE-2020-14310
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