CVE-2020-14310

Name
CVE-2020-14310
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.
NVD Severity
medium
Other trackers
Mailing lists
Exploits
Forges
GitHub (code, issues), Aports (code, issues)

References

Type URI
Issue Tracking https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-14310
UBUNTU https://usn.ubuntu.com/4432-1/
SUSE http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00017.html
SUSE http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00016.html
GENTOO https://security.gentoo.org/glsa/202104-05

Match rules

CPE URI Source package Min version Max version
cpe:2.3:a:gnu:grub2:*:*:*:*:*:*:*:* grub2 >= None < 2.06

Vulnerable and fixed packages

Source package Branch Version Maintainer Status