CVE-2019-9686
CVSS V2 High 9.3
CVSS V3 High 8.8
Description
pacman before 5.1.3 allows directory traversal when installing a remote package via a specified URL "pacman -U <url>" due to an unsanitized file name received from a Content-Disposition header. pacman renames the downloaded package file to match the name given in this header. However, pacman did not sanitize this name, which may contain slashes, before calling rename(). A malicious server (or a network MitM if downloading over HTTP) can send a Content-Disposition header to make pacman place the file anywhere in the filesystem, potentially leading to arbitrary root code execution. Notably, this bypasses pacman's package signature checking. This occurs in curl_download_internal in lib/libalpm/dload.c.
Overview
- CVE ID
- CVE-2019-9686
- Assigner
- cve@mitre.org
- Vulnerability Status
- Analyzed
- Published Version
- 2019-03-11T16:29:00
- Last Modified Date
- 2020-11-09T21:45:43
Weakness Enumerations
CPE Configuration (Product)
CPE | Vulnerable | Operator | Version Start | Version End |
---|---|---|---|---|
cpe:2.3:a:pacman_project:pacman:*:*:*:*:*:*:*:* | 1 | OR | 5.1.3 |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:M/Au:N/C:C/I:C/A:C
- Access Vector
- NETWORK
- Access Compatibility
- MEDIUM
- Authentication
- NONE
- Confidentiality Impact
- COMPLETE
- Integrity Impact
- COMPLETE
- Availability Impact
- COMPLETE
- Base Score
- 9.3
- Severity
- HIGH
- Exploitability Score
- 8.6
- Impact Score
- 10
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- NONE
- User Interaction
- REQUIRED
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- HIGH
- Base Score
- 8.8
- Base Severity
- HIGH
- Exploitability Score
- 2.8
- Impact Score
- 5.9
References
Reference URL | Reference Tags |
---|---|
https://git.archlinux.org/pacman.git/commit/?id=d197d8ab82cf10650487518fb968067897a12775 | Mailing List Patch Third Party Advisory |
https://git.archlinux.org/pacman.git/commit/?id=9702703633bec2c007730006de2aeec8587dfc84 | Mailing List Patch Third Party Advisory |
https://git.archlinux.org/pacman.git/commit/?h=release/5.1.x&id=1bf767234363f7ad5933af3f7ce267c123017bde | Mailing List Third Party Advisory |
Sources
Source Name | Source URL |
---|---|
NIST | https://nvd.nist.gov/vuln/detail/CVE-2019-9686 |
MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-9686 |
History
Created | Old Value | New Value | Data Type | Notes |
---|---|---|---|---|
2022-05-10 16:20:46 | Added to TrackCVE | |||
2022-12-03 18:05:47 | 2019-03-11T16:29Z | 2019-03-11T16:29:00 | CVE Published Date | updated |
2022-12-03 18:05:47 | 2020-11-09T21:45:43 | CVE Modified Date | updated | |
2022-12-03 18:05:47 | Analyzed | Vulnerability Status | updated |