5.5
CVE-2021-32554
- EPSS 0.29%
- Veröffentlicht 12.06.2021 04:15:12
- Zuletzt bearbeitet 21.11.2024 06:07:15
- Erkennungen
Loginapport read_file() function could follow maliciously constructed symbolic links
It was discovered that read_file() in apport/hookutils.py would follow symbolic links or open FIFOs. When this function is used by the xorg package apport hooks, it could expose private data to other local users.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Canonical ≫ Ubuntu Linux Version 18.04 SwEdition lts
Canonical ≫ Ubuntu Linux Version 20.04 SwEdition lts
Canonical ≫ Ubuntu Linux Version 20.10
Canonical ≫ Ubuntu Linux Version 21.04 SwEdition lts
Canonical ≫ Ubuntu Linux Version 21.10
| Typ | Quelle | Score | Percentile |
|---|---|---|---|
| EPSS | FIRST.org | 0.29% | 0.204 |
| Quelle | Base Score | Exploit Score | Impact Score | Vector String |
|---|---|---|---|---|
| NIST | 5.5 | 1.8 | 3.6 |
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
|
| NIST | 2.1 | 3.9 | 2.9 |
AV:L/AC:L/Au:N/C:P/I:N/A:N
|
| Canonical | 7.3 | 2 | 4.7 |
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:L
|
CWE-59 Improper Link Resolution Before File Access ('Link Following')
The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource.
CWE-61 UNIX Symbolic Link (Symlink) Following
The product, when opening a file or directory, does not sufficiently account for when the file is a symbolic link that resolves to a target outside of the intended control sphere. This could allow an attacker to cause the product to operate on unauthorized files.
https://bugs.launchpad.net/ubuntu/+source/apport/+bug/1917904