CVE-2020-15703
published 2020-10-31CVE-2020-15703: There is no input validation on the Locale property in an apt transaction. An unprivileged user can supply a full path to a writable directory, which lets aptd…
PriorityP411low3.3CVSS 3.1
AVLACLPRLUINSUCLINAN
EPSS
0.48%
38.1th percentile
There is no input validation on the Locale property in an apt transaction. An unprivileged user can supply a full path to a writable directory, which lets aptd read a file as root. Having a symlink in place results in an error message if the file exists, and no error otherwise. This way an unprivileged user can check for the existence of any files on the system as root.
Affected
8 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| aptdaemon_project | aptdaemon | — | — |
| canonical | aptdaemon | >= 0 < 1.1.1 | 1.1.1 |
| canonical | aptdaemon | >= 0 < 1.1.1+bzr982-0ubuntu14.4 | 1.1.1+bzr982-0ubuntu14.4 |
| canonical | aptdaemon | >= 0 < 1.1.1+bzr982-0ubuntu19.4 | 1.1.1+bzr982-0ubuntu19.4 |
| canonical | aptdaemon | >= 0 < 1.1.1+bzr982-0ubuntu32.2 | 1.1.1+bzr982-0ubuntu32.2 |
| canonical | aptdaemon | >= unspecified < 1.1.1+bzr982-0ubuntu32.2 | 1.1.1+bzr982-0ubuntu32.2 |
| canonical | aptdaemon | >= unspecified < 1.1.1+bzr982-0ubuntu19.4 | 1.1.1+bzr982-0ubuntu19.4 |
| canonical | aptdaemon | >= unspecified < 1.1.1+bzr982-0ubuntu14.4 | 1.1.1+bzr982-0ubuntu14.4 |
CVSS provenance
nvdv3.13.3LOWCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
nvdv2.02.1LOWAV:L/AC:L/Au:N/C:P/I:N/A:N
osv3.3LOW
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GHSA
aptdaemon Information Disclosure via Improper Input Validation in Transaction class
ghsa·2022-05-24
CVE-2020-15703 [MEDIUM] CWE-200 aptdaemon Information Disclosure via Improper Input Validation in Transaction class
aptdaemon Information Disclosure via Improper Input Validation in Transaction class
There is no input validation on the Locale property in an apt transaction. An unprivileged user can supply a full path to a writable directory, which lets aptd read a file as root. Having a symlink in place results in an error message if the file exists, and no error otherwise. This way an unprivileged user can check for the existence of any files on the system as root.
OSV
aptdaemon Information Disclosure via Improper Input Validation in Transaction class
osv·2022-05-24
CVE-2020-15703 [MEDIUM] aptdaemon Information Disclosure via Improper Input Validation in Transaction class
aptdaemon Information Disclosure via Improper Input Validation in Transaction class
There is no input validation on the Locale property in an apt transaction. An unprivileged user can supply a full path to a writable directory, which lets aptd read a file as root. Having a symlink in place results in an error message if the file exists, and no error otherwise. This way an unprivileged user can check for the existence of any files on the system as root.
OSV
CVE-2020-15703: There is no input validation on the Locale property in an apt transaction
osv·2020-09-24·CVSS 3.3
CVE-2020-15703 [LOW] CVE-2020-15703: There is no input validation on the Locale property in an apt transaction
There is no input validation on the Locale property in an apt transaction. An unprivileged user can supply a full path to a writable directory, which lets aptd read a file as root. Having a symlink in place results in an error message if the file exists, and no error otherwise. This way an unprivileged user can check for the existence of any files on the system as root.
Ubuntu
Aptdaemon vulnerability
vendor_ubuntu·2020-09-24
CVE-2020-15703 Aptdaemon vulnerability
Title: Aptdaemon vulnerability
Summary: Aptdaemon could be made to expose sensitive information.
Vaisha Bernard discovered that Aptdaemon incorrectly handled the Locale
property. A local attacker could use this issue to test for the presence of
local files.
Instructions: After a standard system update you need to reboot your computer to make all
the necessary changes.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2020-10-31
Published