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OVAL Definitions
>
OVAL Definition Details
Id
oval:com.altx-soft.nix:def:224555
[Rus]
Version
1
Class
patch
ALTXid
451567
Language
English
Severity
High
Title
DLA-3572-1 -- libyang security update
Description
Multiple flaws were found in libyang, a parser toolkit for IETF YANG data modeling. Double frees, invalid memory access and Null pointer dereferences may cause a denial of service or potentially code execution.
Family
unix
Platform
Debian 10
Product
libyang
Reference
VENDOR: DLA-3572-1
VENDOR: DLA-3572-1
Id:
DLA-3572-1
Reference:
https://lists.debian.org/debian-lts-announce/2023/debian-lts-announce-202309/msg00019.html
CVE: CVE-2019-20391
CVE: CVE-2019-20391
Id:
CVE-2019-20391
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-20391
Comment
: An invalid memory access flaw is present in libyang before v1.0-r3 in the function resolve_feature_value() when an if-feature statement is used inside a bit. Applications that use libyang to parse untrusted input yang files may crash.
CVSSv2 Score:
4.3
Access vector:
NETWORK
Access complexity:
MEDIUM
Authentication:
NONE
Confidentiality impact:
NONE
Integrity impact:
NONE
Availability impact:
PARTIAL
CVSSv2 Vector:
AV:N/AC:M/Au:N/C:N/I:N/A:P
CVSSv3 Score:
6.5
Attack vector:
NETWORK
Attack complexity:
LOW
Privileges required:
NONE
User interaction:
REQUIRED
Scope:
UNCHANGED
Confidentiality impact:
NONE
Integrity impact:
NONE
Availability impact:
HIGH
CVSSv3 Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CWE:
119 (Improper Restriction of Operations within the Bounds of a Memory Buffer)
References:
https://github.com/CESNET/libyang/commit/bdb596ddc07596fa212f231135b87d0b9178f6f8 (MISC)
https://github.com/CESNET/libyang/compare/v1.0-r2...v1.0-r3 (MISC)
https://bugzilla.redhat.com/show_bug.cgi?id=1793934 (MISC)
https://github.com/CESNET/libyang/issues/772 (MISC)
[debian-lts-announce] 20230919 [SECURITY] [DLA 3572-1] libyang security update (MLIST)
CVE: CVE-2019-20392
CVE: CVE-2019-20392
Id:
CVE-2019-20392
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-20392
Comment
: An invalid memory access flaw is present in libyang before v1.0-r1 in the function resolve_feature_value() when an if-feature statement is used inside a list key node, and the feature used is not defined. Applications that use libyang to parse untrusted input yang files may crash.
CVSSv2 Score:
4.3
Access vector:
NETWORK
Access complexity:
MEDIUM
Authentication:
NONE
Confidentiality impact:
NONE
Integrity impact:
NONE
Availability impact:
PARTIAL
CVSSv2 Vector:
AV:N/AC:M/Au:N/C:N/I:N/A:P
CVSSv3 Score:
6.5
Attack vector:
NETWORK
Attack complexity:
LOW
Privileges required:
NONE
User interaction:
REQUIRED
Scope:
UNCHANGED
Confidentiality impact:
NONE
Integrity impact:
NONE
Availability impact:
HIGH
CVSSv3 Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CWE:
119 (Improper Restriction of Operations within the Bounds of a Memory Buffer)
References:
https://github.com/CESNET/libyang/issues/723 (MISC)
https://github.com/CESNET/libyang/compare/v0.16-r3...v1.0-r1 (MISC)
https://github.com/CESNET/libyang/commit/32fb4993bc8bb49e93e84016af3c10ea53964be5 (MISC)
https://bugzilla.redhat.com/show_bug.cgi?id=1793922 (MISC)
[debian-lts-announce] 20230919 [SECURITY] [DLA 3572-1] libyang security update (MLIST)
CVE: CVE-2019-20393
CVE: CVE-2019-20393
Id:
CVE-2019-20393
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-20393
Comment
: A double-free is present in libyang before v1.0-r1 in the function yyparse() when an empty description is used. 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.
CVSSv2 Score:
6.8
Access vector:
NETWORK
Access complexity:
MEDIUM
Authentication:
NONE
Confidentiality impact:
PARTIAL
Integrity impact:
PARTIAL
Availability impact:
PARTIAL
CVSSv2 Vector:
AV:N/AC:M/Au:N/C:P/I:P/A:P
CVSSv3 Score:
8.8
Attack vector:
NETWORK
Attack complexity:
LOW
Privileges required:
NONE
User interaction:
REQUIRED
Scope:
UNCHANGED
Confidentiality impact:
HIGH
Integrity impact:
HIGH
Availability impact:
HIGH
CVSSv3 Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE:
415 (Double Free)
References:
https://github.com/CESNET/libyang/commit/d9feacc4a590d35dbc1af21caf9080008b4450ed (MISC)
https://github.com/CESNET/libyang/compare/v0.16-r3...v1.0-r1 (MISC)
https://bugzilla.redhat.com/show_bug.cgi?id=1793930 (MISC)
https://github.com/CESNET/libyang/issues/742 (MISC)
[debian-lts-announce] 20230919 [SECURITY] [DLA 3572-1] libyang security update (MLIST)
CVE: CVE-2019-20394
CVE: CVE-2019-20394
Id:
CVE-2019-20394
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-20394
Comment
: 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.
CVSSv2 Score:
6.8
Access vector:
NETWORK
Access complexity:
MEDIUM
Authentication:
NONE
Confidentiality impact:
PARTIAL
Integrity impact:
PARTIAL
Availability impact:
PARTIAL
CVSSv2 Vector:
AV:N/AC:M/Au:N/C:P/I:P/A:P
CVSSv3 Score:
8.8
Attack vector:
NETWORK
Attack complexity:
LOW
Privileges required:
NONE
User interaction:
REQUIRED
Scope:
UNCHANGED
Confidentiality impact:
HIGH
Integrity impact:
HIGH
Availability impact:
HIGH
CVSSv3 Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE:
415 (Double Free)
References:
https://github.com/CESNET/libyang/commit/6cc51b1757dfbb7cff92de074ada65e8523289a6 (MISC)
https://github.com/CESNET/libyang/compare/v1.0-r2...v1.0-r3 (MISC)
https://github.com/CESNET/libyang/issues/769 (MISC)
https://bugzilla.redhat.com/show_bug.cgi?id=1793932 (MISC)
[debian-lts-announce] 20230919 [SECURITY] [DLA 3572-1] libyang security update (MLIST)
CVE: CVE-2019-20395
CVE: CVE-2019-20395
Id:
CVE-2019-20395
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-20395
Comment
: A stack consumption issue is present in libyang before v1.0-r1 due to the self-referential union type containing leafrefs. Applications that use libyang to parse untrusted input yang files may crash.
CVSSv2 Score:
4.3
Access vector:
NETWORK
Access complexity:
MEDIUM
Authentication:
NONE
Confidentiality impact:
NONE
Integrity impact:
NONE
Availability impact:
PARTIAL
CVSSv2 Vector:
AV:N/AC:M/Au:N/C:N/I:N/A:P
CVSSv3 Score:
6.5
Attack vector:
NETWORK
Attack complexity:
LOW
Privileges required:
NONE
User interaction:
REQUIRED
Scope:
UNCHANGED
Confidentiality impact:
NONE
Integrity impact:
NONE
Availability impact:
HIGH
CVSSv3 Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CWE:
674 (Uncontrolled Recursion)
References:
https://github.com/CESNET/libyang/compare/v0.16-r3...v1.0-r1 (MISC)
https://github.com/CESNET/libyang/issues/724 (MISC)
https://github.com/CESNET/libyang/commit/4e610ccd87a2ba9413819777d508f71163fcc237 (MISC)
https://bugzilla.redhat.com/show_bug.cgi?id=1793924 (MISC)
[debian-lts-announce] 20230919 [SECURITY] [DLA 3572-1] libyang security update (MLIST)
CVE: CVE-2019-20396
CVE: CVE-2019-20396
Id:
CVE-2019-20396
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-20396
Comment
: A segmentation fault is present in yyparse in libyang before v1.0-r1 due to a malformed pattern statement value during lys_parse_path parsing.
CVSSv2 Score:
4.3
Access vector:
NETWORK
Access complexity:
MEDIUM
Authentication:
NONE
Confidentiality impact:
NONE
Integrity impact:
NONE
Availability impact:
PARTIAL
CVSSv2 Vector:
AV:N/AC:M/Au:N/C:N/I:N/A:P
CVSSv3 Score:
6.5
Attack vector:
NETWORK
Attack complexity:
LOW
Privileges required:
NONE
User interaction:
REQUIRED
Scope:
UNCHANGED
Confidentiality impact:
NONE
Integrity impact:
NONE
Availability impact:
HIGH
CVSSv3 Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CWE:
119 (Improper Restriction of Operations within the Bounds of a Memory Buffer)
References:
https://github.com/CESNET/libyang/compare/v0.16-r3...v1.0-r1 (MISC)
https://github.com/CESNET/libyang/commit/a1f17693904ed6fecc8902c747fc50a8f20e6af8 (MISC)
https://github.com/CESNET/libyang/issues/740 (MISC)
[debian-lts-announce] 20230919 [SECURITY] [DLA 3572-1] libyang security update (MLIST)
CVE: CVE-2019-20397
CVE: CVE-2019-20397
Id:
CVE-2019-20397
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-20397
Comment
: A double-free is present in libyang before v1.0-r1 in the function yyparse() when an organization field is not terminated. 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.
CVSSv2 Score:
6.8
Access vector:
NETWORK
Access complexity:
MEDIUM
Authentication:
NONE
Confidentiality impact:
PARTIAL
Integrity impact:
PARTIAL
Availability impact:
PARTIAL
CVSSv2 Vector:
AV:N/AC:M/Au:N/C:P/I:P/A:P
CVSSv3 Score:
8.8
Attack vector:
NETWORK
Attack complexity:
LOW
Privileges required:
NONE
User interaction:
REQUIRED
Scope:
UNCHANGED
Confidentiality impact:
HIGH
Integrity impact:
HIGH
Availability impact:
HIGH
CVSSv3 Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE:
415 (Double Free)
References:
https://bugzilla.redhat.com/show_bug.cgi?id=1793928 (MISC)
https://github.com/CESNET/libyang/compare/v0.16-r3...v1.0-r1 (MISC)
https://github.com/CESNET/libyang/issues/739 (MISC)
https://github.com/CESNET/libyang/commit/88bd6c548ba79bce176cd875e9b56e7e0ef4d8d4 (MISC)
[debian-lts-announce] 20230919 [SECURITY] [DLA 3572-1] libyang security update (MLIST)
CVE: CVE-2019-20398
CVE: CVE-2019-20398
Id:
CVE-2019-20398
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-20398
Comment
: A NULL pointer dereference is present in libyang before v1.0-r3 in the function lys_extension_instances_free() due to a copy of unresolved extensions in lys_restr_dup(). Applications that use libyang to parse untrusted input yang files may crash.
CVSSv2 Score:
4.3
Access vector:
NETWORK
Access complexity:
MEDIUM
Authentication:
NONE
Confidentiality impact:
NONE
Integrity impact:
NONE
Availability impact:
PARTIAL
CVSSv2 Vector:
AV:N/AC:M/Au:N/C:N/I:N/A:P
CVSSv3 Score:
6.5
Attack vector:
NETWORK
Attack complexity:
LOW
Privileges required:
NONE
User interaction:
REQUIRED
Scope:
UNCHANGED
Confidentiality impact:
NONE
Integrity impact:
NONE
Availability impact:
HIGH
CVSSv3 Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CWE:
476 (NULL Pointer Dereference)
References:
https://github.com/CESNET/libyang/commit/7852b272ef77f8098c35deea6c6f09cb78176f08 (MISC)
https://bugzilla.redhat.com/show_bug.cgi?id=1793935 (MISC)
https://github.com/CESNET/libyang/compare/v1.0-r2...v1.0-r3 (MISC)
https://github.com/CESNET/libyang/issues/773 (MISC)
[debian-lts-announce] 20230919 [SECURITY] [DLA 3572-1] libyang security update (MLIST)
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