CVE-2016-4980
published 2019-11-27CVE-2016-4980: A password generation weakness exists in xquest through 2016-06-13.
PriorityP410low2.5CVSS 3.1
AVLACHPRLUINSUCNILAN
EPSS
0.32%
24.3th percentile
A password generation weakness exists in xquest through 2016-06-13.
Affected
5 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| ethz | xquest | <= 2016-06-13 | — |
| fedoraproject | fedora | — | — |
| redhat | enterprise_linux | — | — |
| redhat | enterprise_linux | — | — |
| xguest | xguest | — | — |
CVSS provenance
nvdv3.12.5LOWCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N
nvdv2.01.9LOWAV:L/AC:M/Au:N/C:N/I:P/A:N
vendor_redhat2.5LOW
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Red Hat
xguest insecure password creation
vendor_redhat·2016-06-13·CVSS 2.5
CVE-2016-4980 [LOW] CWE-331 xguest insecure password creation
xguest insecure password creation
A password generation weakness exists in xquest through 2016-06-13.
Package: xguest (Red Hat Enterprise Linux 6) - Will not fix
Package: xguest (Red Hat Enterprise Linux 7) - Will not fix
GHSA
GHSA-pm4j-hv98-68cq: A password generation weakness exists in xquest through 2016-06-13
ghsa_unreviewed·2022-05-24
CVE-2016-4980 [LOW] CWE-330 GHSA-pm4j-hv98-68cq: A password generation weakness exists in xquest through 2016-06-13
A password generation weakness exists in xquest through 2016-06-13.
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2016-4980 xguest: xguest insecure password creation [fedora-all]
bugzilla·2016-06-13·CVSS 2.5
CVE-2016-4980 [LOW] CVE-2016-4980 xguest: xguest insecure password creation [fedora-all]
CVE-2016-4980 xguest: xguest insecure password creation [fedora-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of Fedora.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
NOTE: this issue affects multiple supported versions of Fedora. W
Bugzilla
CVE-2016-4980 xguest insecure password creation
bugzilla·2016-06-13·CVSS 2.5
CVE-2016-4980 [LOW] CVE-2016-4980 xguest insecure password creation
CVE-2016-4980 xguest insecure password creation
Kurt Seifried of Red Hat reports:
The xguest rpm creates a user and sets a password using the following rpm postinstall script:
head -1 /dev/urandom | passwd xguest --stdin > /dev/null
this can lead to insufficient randomness being used (in testing with head -n 1 /dev/urandom | wc -c it took an average of 10 attempts to get only 2 characters out). This password is required due to GDM requiring a password for automated passwordless logins at the console.
A better method would be to use a tool such as openssl to get a guaranteed amount of entropy to create the password.
Additionally this password needs to be unique per instance or install but this value is created at install-time and not during the first run. All container and image insta
https://access.redhat.com/security/cve/cve-2016-4980https://bugzilla.redhat.com/show_bug.cgi?id=1346016https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-4980https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AVW2QJFNZUZYBN4M4YUE7S2NZBWWMGES/https://access.redhat.com/security/cve/cve-2016-4980https://bugzilla.redhat.com/show_bug.cgi?id=1346016https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-4980https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AVW2QJFNZUZYBN4M4YUE7S2NZBWWMGES/
2019-11-27
Published