CVE-2012-0871 — Link Following in Project Systemd

CWE-59 — Link Following7 documents6 sources
Severity
6.3MEDIUMNVD
EPSS
0.1%
top 68.63%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Systemd Project SystemdOpensuse
Timeline
PublishedApr 18
Latest updateMay 13

Description

The session_link_x11_socket function in login/logind-session.c in systemd-logind in systemd, possibly 37 and earlier, allows local users to create or overwrite arbitrary files via a symlink attack on the X11 user directory in /run/user/.

CVSS vector

AV:L/AC:M/C:N/I:C/A:CExploitability: 3.4 | Impact: 9.2

Affected Packages3 packages

▶Debiansystemd_project/systemd< 43-1+3

🔴Vulnerability Details

3
GHSA
GHSA-jv9q-v37q-34vv: The session_link_x11_socket function in login/logind-session↗2022-05-13
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CVEList
CVE-2012-0871: The session_link_x11_socket function in login/logind-session↗2014-04-18
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OSV
CVE-2012-0871: The session_link_x11_socket function in login/logind-session↗2014-04-18
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📋Vendor Advisories

1
Debian
CVE-2012-0871: systemd - The session_link_x11_socket function in login/logind-session.c in systemd-logind...↗2012
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💬Community

2
Bugzilla
CVE-2012-0871 systemd: insecure file creation may lead to elevated privileges [fedora-all]↗2012-03-01
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Bugzilla
CVE-2012-0871 systemd: insecure file creation may lead to elevated privileges↗2012-02-21
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CVE-2012-0871 — Link Following in Project Systemd | cvebase