CVE-2022-2601

See a problem?
Please try reporting it to the source first.
Source
https://nvd.nist.gov/vuln/detail/CVE-2022-2601
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-2601.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2022-2601
Related
Published
2022-12-14T21:15:10Z
Modified
2024-09-18T03:12:23.055646Z
Severity
  • 8.6 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

A buffer overflow was found in grubfontconstructglyph(). A malicious crafted pf2 font can lead to an overflow when calculating the maxglyph_size value, allocating a smaller than needed buffer for the glyph, this further leads to a buffer overflow and a heap based out-of-bounds write. An attacker may use this vulnerability to circumvent the secure boot mechanism.

References

Affected packages

Debian:11 / grub2

Package

Name
grub2
Purl
pkg:deb/debian/grub2?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.06-3~deb11u4

Affected versions

2.*

2.04-20
2.06-1
2.06-2
2.06-2+hurd.1
2.06-2+hurd.2
2.06-2+hurd.3
2.06-2+hurd.4
2.06-2+hurd.5
2.06-2+hurd.6
2.06-2+hurd.7
2.06-2+hurd.8
2.06-3~deb10u1
2.06-3~deb10u2
2.06-3~deb10u3
2.06-3~deb10u4
2.06-3~deb11u1
2.06-3~deb11u2

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:12 / grub2

Package

Name
grub2
Purl
pkg:deb/debian/grub2?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.06-5

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:13 / grub2

Package

Name
grub2
Purl
pkg:deb/debian/grub2?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.06-5

Ecosystem specific 

{
    "urgency": "not yet assigned"
}