Description
Incomplete blacklist vulnerability in the chfn function in libuser before
0.56.13-8 and 0.60 before 0.60-7, as used in the userhelper program in the
usermode package, allows local users to cause a denial of service
(/etc/passwd corruption) via a newline character in the GECOS field.
Ubuntu-Description
It was discovered that libuser has incomplete blacklist vulnerability. A
local user could use it to cause a denial of service.
Package
| Upstream: | released
(1:0.62~dfsg-0.1)
|
| Ubuntu 18.04 LTS: | not-affected
(1:0.62~dfsg-0.1)
|
| Ubuntu 20.04 LTS: | not-affected
(1:0.62~dfsg-0.1)
|
| Ubuntu 21.10: | not-affected
(1:0.62~dfsg-0.1)
|
| Ubuntu 22.04 LTS: | not-affected
(1:0.62~dfsg-0.1)
|
| Ubuntu 14.04 ESM: | DNE
(trusty was needed)
|
| Ubuntu 20.04 FIPS Compliant: | not-affected
(1:0.62~dfsg-0.1)
|
Patches:
Updated: 2022-04-25 00:15:35 UTC (commit ecc1009cb19540b950de59270950018900f37f15)