Vulnerability CVE-2013-4391
Published: 2013-10-28   Modified: 2013-10-29

Description:
Integer overflow in the valid_user_field function in journal/journald-native.c in systemd allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a large journal data field, which triggers a heap-based buffer overflow.

CVSS2 => (AV:N/AC:L/Au:N/C:P/I:P/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
7.5/10
6.4/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
Partial
Affected software
Ubuntu developers -> Systemd 

 References:
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=725357
http://cgit.freedesktop.org/systemd/systemd/commit/?id=505b6a61c22d5565e9308045c7b9bf79f7d0517e
http://www.debian.org/security/2013/dsa-2777
http://www.openwall.com/lists/oss-security/2013/10/01/9
https://bugzilla.redhat.com/show_bug.cgi?id=859051
https://security.gentoo.org/glsa/201612-34
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