CVE-2020-14311

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.

Link	Resource
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-14311	Issue Tracking Third Party Advisory
https://usn.ubuntu.com/4432-1/	Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00017.html	Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00016.html	Mailing List Third Party Advisory
https://security.gentoo.org/glsa/202104-05	Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/09/17/2	Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/09/17/4	Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/09/21/1	Mailing List Third Party Advisory

Configuration 1

cpe:2.3:a:gnu:grub2:*:*:*:*:*:*:*:* cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* cpe:2.3:o:redhat:enterprise_linux_eus:8.1:*:*:*:*:*:*:* cpe:2.3:o:redhat:enterprise_linux_eus:8.2:*:*:*:*:*:*:* cpe:2.3:o:redhat:enterprise_linux_server_tus:8.2:*:*:*:*:*:*:* cpe:2.3:o:redhat:enterprise_linux_server_aus:8.2:*:*:*:*:*:*:* cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:* cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:* cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:* cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:* cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*

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Published : 2020-07-31 10:15

Updated : 2021-10-19 01:23

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NVD link : CVE-2020-14311

Mitre link : CVE-2020-14311

No products.

CWE-122

CWE-190