CVE-2019-3902
Ubuntu Security Notice USN-5102-1
Severity Score
5.9
*CVSS v3
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
A flaw was found in Mercurial before 4.9. It was possible to use symlinks and subrepositories to defeat Mercurial's path-checking logic and write files outside a repository.
Se encontró un defecto en Mercurial, en versiones anteriores a la 4.9. Era posible utilizar enlaces simbólicos y subrepositorios para acabar con la lógica de comprobación de rutas de Mercurial y escribir archivos fuera de un repositorio.
It was discovered that Mercurial mishandled symlinks in subrepositories. An attacker could use this issue to write arbitrary files to the target’s filesystem. It was discovered that Mercurial incorrectly handled certain manifest files. An attacker could use this issue to cause a denial of service and possibly execute arbitrary code.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2019-01-03 CVE Reserved
- 2019-04-22 CVE Published
- 2024-08-04 CVE Updated
- 2025-03-30 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
- CWE-59: Improper Link Resolution Before File Access ('Link Following')
CAPEC
References (5)
| URL | Tag | Source |
|---|---|---|
| https://lists.debian.org/debian-lts-announce/2019/04/msg00024.html | Mailing List |
|
| https://lists.debian.org/debian-lts-announce/2020/07/msg00032.html | Mailing List |
|
| https://www.mercurial-scm.org/wiki/WhatsNew#Mercurial_4.9_.282019-02-01.29 | Third Party Advisory |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3902 | 2020-07-31 | |
| https://usn.ubuntu.com/4086-1 | 2020-07-31 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Mercurial Search vendor "Mercurial" | Mercurial Search vendor "Mercurial" for product "Mercurial" | < 4.9 Search vendor "Mercurial" for product "Mercurial" and version " < 4.9" | - |
Affected
| ||||||
| Debian Search vendor "Debian" | Debian Linux Search vendor "Debian" for product "Debian Linux" | 8.0 Search vendor "Debian" for product "Debian Linux" and version "8.0" | - |
Affected
| ||||||
| Redhat Search vendor "Redhat" | Enterprise Linux Search vendor "Redhat" for product "Enterprise Linux" | 7.0 Search vendor "Redhat" for product "Enterprise Linux" and version "7.0" | - |
Affected
| ||||||