CVE-2018-20482
Detail
Modified This CVE record has been updated after NVD enrichment efforts were completed. Enrichment data supplied by the NVD may require amendment due to these changes.
Description
GNU Tar through 1.30, when --sparse is used, mishandles file shrinkage during read access, which allows local users to cause a denial of service (infinite read loop in sparse_dump_region in sparse.c) by modifying a file that is supposed to be archived by a different user's process (e.g., a system backup running as root).
Metrics
CVSS Version 4.0
CVSS Version 3.x
CVSS Version 2.0
NVD enrichment efforts reference publicly available information to associate
vector strings. CVSS information contributed by other sources is also
displayed.
CVSS 4.0 Severity and Vector Strings:
NVD assessment
not yet provided.
CVSS 3.x Severity and Vector Strings:
Vector:
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0 Severity and Vector Strings:
Vector:
(AV:L/AC:M/Au:N/C:N/I:N/A:P)
References to Advisories, Solutions, and Tools
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URL
Source(s)
Tag(s)
http://git.savannah.gnu.org/cgit/tar.git/commit/?id=c15c42ccd1e2377945fd0414eca1a49294bff454
CVE, MITRE
Patch
Third Party Advisory
http://lists.gnu.org/archive/html/bug-tar/2018-12/msg00023.html
CVE, MITRE
Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00077.html
CVE, MITRE
Mailing List
Third Party Advisory
http://www.securityfocus.com/bid/106354
CVE, MITRE
Third Party Advisory
VDB Entry
https://lists.debian.org/debian-lts-announce/2018/12/msg00023.html
CVE, MITRE
Mailing List
Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/11/msg00025.html
CVE, MITRE
Mailing List
Third Party Advisory
https://news.ycombinator.com/item?id=18745431
CVE, MITRE
Exploit
Third Party Advisory
https://security.gentoo.org/glsa/201903-05
CVE, MITRE
Third Party Advisory
https://twitter.com/thatcks/status/1076166645708668928
CVE, MITRE
Patch
Third Party Advisory
https://utcc.utoronto.ca/~cks/space/blog/sysadmin/TarFindingTruncateBug
CVE, MITRE
Patch
Third Party Advisory
Weakness Enumeration
CWE-ID
CWE Name
Source
CWE-835
Loop with Unreachable Exit Condition ('Infinite Loop')
NIST
Change History
13 change records found show changes
CVE Modified by CVE 11/20/2024 11:01:34 PM
Action
Type
Old Value
New Value
Added
Reference
http://git.savannah.gnu.org/cgit/tar.git/commit/?id=c15c42ccd1e2377945fd0414eca1a49294bff454
Added
Reference
http://lists.gnu.org/archive/html/bug-tar/2018-12/msg00023.html
Added
Reference
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00077.html
Added
Reference
http://www.securityfocus.com/bid/106354
Added
Reference
https://lists.debian.org/debian-lts-announce/2018/12/msg00023.html
Added
Reference
https://lists.debian.org/debian-lts-announce/2021/11/msg00025.html
Added
Reference
https://news.ycombinator.com/item?id=18745431
Added
Reference
https://security.gentoo.org/glsa/201903-05
Added
Reference
https://twitter.com/thatcks/status/1076166645708668928
Added
Reference
https://utcc.utoronto.ca/~cks/space/blog/sysadmin/TarFindingTruncateBug
CVE Modified by MITRE 5/14/2024 1:14:29 AM
Action
Type
Old Value
New Value
Modified Analysis by NIST 11/30/2021 2:52:03 PM
Action
Type
Old Value
New Value
Added
CVSS V3.1
NIST AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Removed
CVSS V3
NIST AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Changed
CPE Configuration
OR
*cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
OR
*cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
*cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
Changed
Reference Type
https://lists.debian.org/debian-lts-announce/2021/11/msg00025.html No Types Assigned
https://lists.debian.org/debian-lts-announce/2021/11/msg00025.html Mailing List, Third Party Advisory
CVE Modified by MITRE 11/28/2021 10:15:07 AM
Action
Type
Old Value
New Value
Added
Reference
https://lists.debian.org/debian-lts-announce/2021/11/msg00025.html [No Types Assigned]
CWE Remap by NIST 10/02/2019 8:03:26 PM
Action
Type
Old Value
New Value
Changed
CWE
CWE-125
CWE-125
CWE-835
Modified Analysis by NIST 4/26/2019 8:37:08 AM
Action
Type
Old Value
New Value
Added
CPE Configuration
OR
*cpe:2.3:o:opensuse:leap:15.0:*:*:*:*:*:*:*
Changed
Reference Type
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00077.html No Types Assigned
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00077.html Mailing List, Third Party Advisory
CVE Modified by MITRE 4/18/2019 3:29:01 PM
Action
Type
Old Value
New Value
Added
Reference
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00077.html [No Types Assigned]
Modified Analysis by NIST 3/13/2019 8:16:39 AM
Action
Type
Old Value
New Value
Changed
Reference Type
https://security.gentoo.org/glsa/201903-05 No Types Assigned
https://security.gentoo.org/glsa/201903-05 Third Party Advisory
CVE Modified by MITRE 3/11/2019 7:29:09 AM
Action
Type
Old Value
New Value
Added
Reference
https://security.gentoo.org/glsa/201903-05 [No Types Assigned]
Initial Analysis by NIST 2/14/2019 12:42:25 PM
Action
Type
Old Value
New Value
Added
CVSS V3
AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Added
CVSS V2
(AV:L/AC:M/Au:N/C:N/I:N/A:P)
Added
CWE
CWE-125
Added
CPE Configuration
OR
*cpe:2.3:a:gnu:tar:*:*:*:*:*:*:*:* versions up to (including) 1.30
Added
CPE Configuration
OR
*cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
Changed
Reference Type
http://git.savannah.gnu.org/cgit/tar.git/commit/?id=c15c42ccd1e2377945fd0414eca1a49294bff454 No Types Assigned
http://git.savannah.gnu.org/cgit/tar.git/commit/?id=c15c42ccd1e2377945fd0414eca1a49294bff454 Patch, Third Party Advisory
Changed
Reference Type
http://lists.gnu.org/archive/html/bug-tar/2018-12/msg00023.html No Types Assigned
http://lists.gnu.org/archive/html/bug-tar/2018-12/msg00023.html Third Party Advisory
Changed
Reference Type
http://www.securityfocus.com/bid/106354 No Types Assigned
http://www.securityfocus.com/bid/106354 Third Party Advisory, VDB Entry
Changed
Reference Type
https://lists.debian.org/debian-lts-announce/2018/12/msg00023.html No Types Assigned
https://lists.debian.org/debian-lts-announce/2018/12/msg00023.html Mailing List, Third Party Advisory
Changed
Reference Type
https://news.ycombinator.com/item?id=18745431 No Types Assigned
https://news.ycombinator.com/item?id=18745431 Exploit, Third Party Advisory
Changed
Reference Type
https://twitter.com/thatcks/status/1076166645708668928 No Types Assigned
https://twitter.com/thatcks/status/1076166645708668928 Patch, Third Party Advisory
Changed
Reference Type
https://utcc.utoronto.ca/~cks/space/blog/sysadmin/TarFindingTruncateBug No Types Assigned
https://utcc.utoronto.ca/~cks/space/blog/sysadmin/TarFindingTruncateBug Patch, Third Party Advisory
CVE Modified by MITRE 1/03/2019 2:29:01 PM
Action
Type
Old Value
New Value
Added
Reference
http://git.savannah.gnu.org/cgit/tar.git/commit/?id=c15c42ccd1e2377945fd0414eca1a49294bff454 [No Types Assigned]
CVE Modified by MITRE 1/01/2019 6:29:00 AM
Action
Type
Old Value
New Value
Added
Reference
http://www.securityfocus.com/bid/106354 [No Types Assigned]
Added
Reference
https://lists.debian.org/debian-lts-announce/2018/12/msg00023.html [No Types Assigned]
CVE Modified by MITRE 12/27/2018 8:29:00 AM
Action
Type
Old Value
New Value
Added
Reference
http://lists.gnu.org/archive/html/bug-tar/2018-12/msg00023.html [No Types Assigned]
Quick Info
CVE Dictionary Entry: CVE-2018-20482 NVD
Published Date: 12/26/2018 NVD
Last Modified: 11/20/2024
Source: MITRE
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