CVE-2020-14311
Get alerts for future matching vulnerabilitiesLog in to subscribe
I. Basic Information for CVE-2020-14311
Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗ Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.
Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
There is an issue with grub2 before version 2.06 while handling symlink on ext filesystems. A filesystem containing a symbolic link with an inode size of UINT32_MAX causes an arithmetic overflow leading to a zero-sized memory allocation with subsequent 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-2020-14311
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POCPremium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2020-14311
请登录查看更多情报信息。
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-14311x_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-2020-14311
IV. Related Vulnerabilities
Same product: grub2
- CVE-2025-54770
Grub2: use-after-free in net_set_vlan - CVE-2025-61664
Grub2: missing unregister call for normal_exit command may l - CVE-2025-61663
Grub2: missing unregister call for normal commands may lead - CVE-2025-61662
Grub2: missing unregister call for gettext command may lead - CVE-2025-61661
Grub2: grub2: out-of-bounds write via malicious usb device
Same vendor: The Grub2 Project
Same weakness: CWE-190
- CVE-2026-7568
Signed integer overflow in metaphone() - CVE-2026-42311
Pillow: OOB Write with Invalid PSD Tile Extents (Integer Ove - CVE-2026-42308
Pillow: Integer overflow when processing fonts - CVE-2026-6664
PgBouncer integer overflow in PgBouncer network packet parsi - CVE-2026-42199
Grid: Integer Overflow in Grid::expand_rows Leads to Safe-AP
V. Comments for CVE-2020-14311
No comments yet