CVE-2020-10702
CVSS V2 Low 2.1
CVSS V3 Medium 5.5
Description
A flaw was found in QEMU in the implementation of the Pointer Authentication (PAuth) support for ARM introduced in version 4.0 and fixed in version 5.0.0. A general failure of the signature generation process caused every PAuth-enforced pointer to be signed with the same signature. A local attacker could obtain the signature of a protected pointer and abuse this flaw to bypass PAuth protection for all programs running on QEMU.
Overview
- CVE ID
- CVE-2020-10702
- Assigner
- secalert@redhat.com
- Vulnerability Status
- Analyzed
- Published Version
- 2020-06-04T18:15:14
- Last Modified Date
- 2023-01-27T18:56:16
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:* | 1 | OR | 4.0.0 | 5.0.0 |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:L/AC:L/Au:N/C:P/I:N/A:N
- Access Vector
- LOCAL
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- NONE
- Availability Impact
- NONE
- Base Score
- 2.1
- Severity
- LOW
- Exploitability Score
- 3.9
- Impact Score
- 2.9
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- Attack Vector
- LOCAL
- Attack Compatibility
- LOW
- Privileges Required
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- NONE
- Base Score
- 5.5
- Base Severity
- MEDIUM
- Exploitability Score
- 1.8
- Impact Score
- 3.6
References
| Reference URL | Reference Tags |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-10702 | Issue Tracking Third Party Advisory |
| https://git.qemu.org/?p=qemu.git;a=commit;h=de0b1bae6461f67243282555475f88b2384a1eb9 | Vendor Advisory |
| https://security.netapp.com/advisory/ntap-20200724-0007/ |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2020-10702 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-10702 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 16:39:52 | Added to TrackCVE | |||
| 2022-12-04 17:26:18 | 2020-06-04T18:15Z | 2020-06-04T18:15:14 | CVE Published Date | updated |
| 2022-12-04 17:26:18 | 2020-07-24T14:15:11 | CVE Modified Date | updated | |
| 2022-12-04 17:26:18 | Undergoing Analysis | Vulnerability Status | updated | |
| 2023-01-27 19:10:15 | 2023-01-27T18:56:16 | CVE Modified Date | updated | |
| 2023-01-27 19:10:15 | Undergoing Analysis | Analyzed | Vulnerability Status | updated |
| 2023-01-27 19:10:17 | Weakness Enumeration | update |