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.
References
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 |
Configurations
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Information
Published : 2020-07-31 15:15
Updated : 2021-10-19 06:23
NVD link : CVE-2020-14311
Mitre link : CVE-2020-14311
JSON object : View
Products Affected
redhat
- enterprise_linux_server_aus
- enterprise_linux
- enterprise_linux_server_tus
- enterprise_linux_eus
gnu
- grub2
canonical
- ubuntu_linux
opensuse
- leap