Ubuntu.comUB:CVE-2019-20394CVE-2019-20394
6.8 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
8.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
0.006 Low
EPSS
Percentile
79.5%
A double-free is present in libyang before v1.0-r3 in the function
yyparse() when a type statement in used in a notification statement.
Applications that use libyang to parse untrusted input yang files may be
vulnerable to this flaw, which would cause a crash or potentially code
execution.
References
bugzilla.redhat.com/show_bug.cgi?id=1793932
github.com/CESNET/libyang/commit/6cc51b1757dfbb7cff92de074ada65e8523289a6
github.com/CESNET/libyang/compare/v1.0-r2...v1.0-r3
github.com/CESNET/libyang/issues/769
launchpad.net/bugs/cve/CVE-2019-20394
nvd.nist.gov/vuln/detail/CVE-2019-20394
security-tracker.debian.org/tracker/CVE-2019-20394
www.cve.org/CVERecord?id=CVE-2019-20394
Related
6.8 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
8.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
0.006 Low
EPSS
Percentile
79.5%