CVE-2020-14309
CVSS V2 Medium 4.6
CVSS V3 Medium 6.7
Description
There's an issue with grub2 in all versions before 2.06 when handling squashfs filesystems containing a symbolic link with name length of UINT32 bytes in size. The name size leads to an arithmetic overflow leading to a zero-size allocation further causing a heap-based buffer overflow with attacker controlled data.
Overview
- CVE ID
- CVE-2020-14309
- Assigner
- secalert@redhat.com
- Vulnerability Status
- Analyzed
- Published Version
- 2020-07-30T13:15:10
- Last Modified Date
- 2022-04-28T18:58:26
Weakness Enumerations
CPE Configuration (Product)
CPE | Vulnerable | Operator | Version Start | Version End |
---|---|---|---|---|
cpe:2.3:a:gnu:grub2:*:*:*:*:*:*:*:* | 1 | OR | 2.06 | |
cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:* | 1 | OR | ||
cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:* | 1 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:L/AC:L/Au:N/C:P/I:P/A:P
- Access Vector
- LOCAL
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- PARTIAL
- Availability Impact
- PARTIAL
- Base Score
- 4.6
- Severity
- MEDIUM
- Exploitability Score
- 3.9
- Impact Score
- 6.4
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
- Attack Vector
- LOCAL
- Attack Compatibility
- LOW
- Privileges Required
- HIGH
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- HIGH
- Base Score
- 6.7
- Base Severity
- MEDIUM
- Exploitability Score
- 0.8
- Impact Score
- 5.9
References
Reference URL | Reference Tags |
---|---|
https://bugzilla.redhat.com/show_bug.cgi?id=1852022 | Issue Tracking Third Party Advisory |
https://security.netapp.com/advisory/ntap-20200731-0008/ | 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 |
Sources
Source Name | Source URL |
---|---|
NIST | https://nvd.nist.gov/vuln/detail/CVE-2020-14309 |
MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-14309 |
History
Created | Old Value | New Value | Data Type | Notes |
---|---|---|---|---|
2022-05-10 06:25:34 | Added to TrackCVE | |||
2022-12-04 20:27:23 | 2020-07-30T13:15Z | 2020-07-30T13:15:10 | CVE Published Date | updated |
2022-12-04 20:27:23 | 2022-04-28T18:58:26 | CVE Modified Date | updated | |
2022-12-04 20:27:23 | Analyzed | Vulnerability Status | updated |