CVE-2019-19334
CVSS V2 High 7.5
CVSS V3 Critical 9.8
Description
In all versions of libyang before 1.0-r5, a stack-based buffer overflow was discovered in the way libyang parses YANG files with a leaf of type "identityref". An application that uses libyang to parse untrusted YANG files may be vulnerable to this flaw, which would allow an attacker to cause a denial of service or possibly gain code execution.
Overview
- CVE ID
- CVE-2019-19334
- Assigner
- secalert@redhat.com
- Vulnerability Status
- Modified
- Published Version
- 2019-12-06T16:15:10
- Last Modified Date
- 2019-12-18T18:15:19
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:cesnet:libyang:0.11:r1:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:cesnet:libyang:0.11:r2:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:cesnet:libyang:0.12:r1:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:cesnet:libyang:0.12:r2:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:cesnet:libyang:0.13:r1:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:cesnet:libyang:0.13:r2:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:cesnet:libyang:0.14:r1:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:cesnet:libyang:0.15:r1:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:cesnet:libyang:0.16:r1:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:cesnet:libyang:0.16:r2:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:cesnet:libyang:0.16:r3:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:cesnet:libyang:1.0:r1:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:cesnet:libyang:1.0:r2:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:cesnet:libyang:1.0:r3:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:cesnet:libyang:1.0:r4:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:* | 1 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:L/Au:N/C:P/I:P/A:P
- Access Vector
- NETWORK
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- PARTIAL
- Availability Impact
- PARTIAL
- Base Score
- 7.5
- Severity
- HIGH
- Exploitability Score
- 10
- Impact Score
- 6.4
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- HIGH
- Base Score
- 9.8
- Base Severity
- CRITICAL
- Exploitability Score
- 3.9
- Impact Score
- 5.9
References
| Reference URL | Reference Tags |
|---|---|
| https://github.com/CESNET/libyang/commit/6980afae2ff9fcd6d67508b0a3f694d75fd059d6 | Patch Third Party Advisory |
| https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-19334 | Issue Tracking Patch Third Party Advisory |
| https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PETB6TVMFV5KUD4IKVP2JPLBCYHUGSAJ/ | Mailing List Third Party Advisory |
| https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RL54JMS7XW7PI6JC4BFSNNLSX5AINQUL/ | |
| https://access.redhat.com/errata/RHSA-2019:4360 |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2019-19334 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-19334 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 16:56:23 | Added to TrackCVE | |||
| 2022-12-04 07:27:50 | 2019-12-06T16:15Z | 2019-12-06T16:15:10 | CVE Published Date | updated |
| 2022-12-04 07:27:50 | 2019-12-18T18:15:19 | CVE Modified Date | updated | |
| 2022-12-04 07:27:50 | Modified | Vulnerability Status | updated |