yum does not properly handle bad metadata, which allows an attacker to cause a denial of service and possibly have other unspecified impact via a Trojan horse file in the metadata of a remote repository.
CVSS 3.x
| Source | Score | Severity | Vector | Exploitability | Impact |
|---|---|---|---|---|---|
| nvd@nist.gov | 9.8 | CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | 3.9 | 5.9 |
CVSS 2.0
Severity: HIGH
Problem Type: CWE-20,
Products Affected
| Vendor | Product | Version |
|---|---|---|
| baseurl | yum | 3.4.3 |
| debian | debian_linux | 10.0 |
| debian | debian_linux | 8.0 |
| debian | debian_linux | 9.0 |
The installUpdates function in yum-cron/yum-cron.py in yum 3.4.3 and earlier does not properly check the return value of the sigCheckPkg function, which allows remote attackers to bypass the RMP package signing restriction via an unsigned package.
CVSS 2.0
Severity: MEDIUM
Problem Type: CWE-20,
Products Affected
| Vendor | Product | Version |
|---|---|---|
| baseurl | yum | 3.4.2 |
| baseurl | yum | 3.4.0 |
| baseurl | yum | * |
| baseurl | yum | 3.4.1 |