Home/CVE/The session_link_x11_socket function in login/logind-session.c in systemd-logind in systemd, possibly 37 and earlier, al
CVE

CVE-2012-0871

The session_link_x11_socket function in login/logind-session.c in systemd-logind in systemd, possibly 37 and earlier, al

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/.

MEDIUM · CVSS 6.3 EPSS 0.00122
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  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules1 YARA rules0
⬡

Weakness Classification

CWE-59Improper Link Resolution Before File Access ('Link Following')
▤

Affected Products & Versions

3
systemd project systemd<= 037
systemd project systemdall versions
opensuseall versions
◈

Sigma Hunt Rules

1
Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.
productmediumSystemd Service Creation
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Scoring & Timeline

6.3
MEDIUM · CVSS v2 (legacy) · secalert@redhat.com
View on NVD
This CVE predates CVSS v3; the legacy v2 score is shown so triage still has a severity to work with.
v2 Vector
AV:L/AC:M/Au:N/C:N/I:C/A:C
Published to NVD18 Apr 2014 · 02:55 PM
🔗

References & Sources

5
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://cgit.freedesktop.org/systemd/systemd/commit/?id=fc3c1c6e091ea16ad5600b145201ec535bbb5d7c
http://lists.opensuse.org/opensuse-security-announce/2012-02/msg00030.html
http://www.osvdb.org/79768
https://bugzilla.novell.com/show_bug.cgi?id=747154
https://bugzilla.redhat.com/show_bug.cgi?id=795853
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