CVE-2020-16127 — Improper Input Validation in Accountsservice

CWE-20 — Improper Input ValidationCWE-835 — Infinite Loop6 documents5 sources
Severity
5.5MEDIUMNVD
OSV6.5
EPSS
0.2%
top 61.55%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
Freedesktop AccountsserviceCanonical AccountsserviceDebian Accountsservice
Timeline
PublishedNov 11
Latest updateMay 24

Description

An Ubuntu-specific modification to AccountsService in versions before 0.6.55-0ubuntu13.2, among other earlier versions, would perform unbounded read operations on user-controlled ~/.pam_environment files, allowing an infinite loop if /dev/zero is symlinked to this location.

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitability: 1.8 | Impact: 3.6

Affected Packages4 packages

▶CVEListV5freedesktop/accountsservice0.6.35-0ubuntu7.3 — 0.6.35-0ubuntu7.3+esm2+4
▶Ubuntucanonical/accountsservice< 0.6.40-2ubuntu11.6+2

🔴Vulnerability Details

3
GHSA
GHSA-vg2p-x98m-7mxr: An Ubuntu-specific modification to AccountsService in versions before 0↗2022-05-24
▶
OSV
accountsservice vulnerabilities↗2020-11-03
▶
OSV
CVE-2020-16127: An Ubuntu-specific modification to AccountsService in versions before 0↗2020-11-03
▶

📋Vendor Advisories

2
Ubuntu
AccountsService vulnerabilities↗2020-11-03
▶
Debian
CVE-2020-16127: accountsservice - An Ubuntu-specific modification to AccountsService in versions before 0.6.55-0ub...↗2020
▶