CVE-2021-20233
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2021-20233
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-20233.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2021-20233
- Related
- Published
- 2021-03-03T17:15:12Z
- Modified
- 2024-09-18T03:12:26.799186Z
- Severity
-
- 8.2 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H CVSS Calculator
- Summary
- [none]
- Details
-
A flaw was found in grub2 in versions prior to 2.06. Setparam_prefix() in the menu rendering code performs a length calculation on the assumption that expressing a quoted single quote will require 3 characters, while it actually requires 4 characters which allows an attacker to corrupt memory by one byte for each quote in the input. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
- References
-
- https://security.gentoo.org/glsa/202104-05
- https://security.netapp.com/advisory/ntap-20220325-0001/
- https://bugzilla.redhat.com/show_bug.cgi?id=1926263
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZWZ36QK4IKU6MWDWNOOWKPH3WXZBHT2R/
- https://security.alpinelinux.org/vuln/CVE-2021-20233
- https://security-tracker.debian.org/tracker/CVE-2021-20233
Affected packages
Alpine:v3.17 / grub
Package
- Name
- grub
- Purl
- pkg:apk/alpine/grub?arch=source
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0Unknown introduced version / All previous versions are affectedFixed2.06-r0
Affected versions
2.*
2.02_beta3-r0
2.02_beta3-r1
2.02_beta3-r2
2.02_beta3-r3
2.02_beta3-r4
2.02_beta3-r5
2.02_beta3-r6
2.02_beta3-r7
2.02-r0
2.02-r1
2.02-r2
2.02-r3
2.02-r4
2.02-r5
2.02-r6
2.02-r7
2.02-r8
2.02-r9
2.02-r10
2.02-r11
2.02-r12
2.02-r13
2.02-r14
2.02-r15
2.02-r16
2.02-r17
2.02-r18
2.02-r19
2.02-r20
2.04-r0
2.04-r1
2.04-r2
2.04-r3
Alpine:v3.18 / grub
Package
- Name
- grub
- Purl
- pkg:apk/alpine/grub?arch=source
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0Unknown introduced version / All previous versions are affectedFixed2.06-r0
Affected versions
2.*
2.02_beta3-r0
2.02_beta3-r1
2.02_beta3-r2
2.02_beta3-r3
2.02_beta3-r4
2.02_beta3-r5
2.02_beta3-r6
2.02_beta3-r7
2.02-r0
2.02-r1
2.02-r2
2.02-r3
2.02-r4
2.02-r5
2.02-r6
2.02-r7
2.02-r8
2.02-r9
2.02-r10
2.02-r11
2.02-r12
2.02-r13
2.02-r14
2.02-r15
2.02-r16
2.02-r17
2.02-r18
2.02-r19
2.02-r20
2.04-r0
2.04-r1
2.04-r2
2.04-r3
Alpine:v3.19 / grub
Package
- Name
- grub
- Purl
- pkg:apk/alpine/grub?arch=source
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0Unknown introduced version / All previous versions are affectedFixed2.06-r0
Affected versions
2.*
2.02_beta3-r0
2.02_beta3-r1
2.02_beta3-r2
2.02_beta3-r3
2.02_beta3-r4
2.02_beta3-r5
2.02_beta3-r6
2.02_beta3-r7
2.02-r0
2.02-r1
2.02-r2
2.02-r3
2.02-r4
2.02-r5
2.02-r6
2.02-r7
2.02-r8
2.02-r9
2.02-r10
2.02-r11
2.02-r12
2.02-r13
2.02-r14
2.02-r15
2.02-r16
2.02-r17
2.02-r18
2.02-r19
2.02-r20
2.04-r0
2.04-r1
2.04-r2
2.04-r3
Alpine:v3.20 / grub
Package
- Name
- grub
- Purl
- pkg:apk/alpine/grub?arch=source
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0Unknown introduced version / All previous versions are affectedFixed2.06-r0
Affected versions
2.*
2.02_beta3-r0
2.02_beta3-r1
2.02_beta3-r2
2.02_beta3-r3
2.02_beta3-r4
2.02_beta3-r5
2.02_beta3-r6
2.02_beta3-r7
2.02-r0
2.02-r1
2.02-r2
2.02-r3
2.02-r4
2.02-r5
2.02-r6
2.02-r7
2.02-r8
2.02-r9
2.02-r10
2.02-r11
2.02-r12
2.02-r13
2.02-r14
2.02-r15
2.02-r16
2.02-r17
2.02-r18
2.02-r19
2.02-r20
2.04-r0
2.04-r1
2.04-r2
2.04-r3
Debian:11 / grub2
Package
- Name
- grub2
- Purl
- pkg:deb/debian/grub2?arch=source
Debian:12 / grub2
Package
- Name
- grub2
- Purl
- pkg:deb/debian/grub2?arch=source
Debian:13 / grub2
Package
- Name
- grub2
- Purl
- pkg:deb/debian/grub2?arch=source