4.7

CVE-2018-20482

Exploit
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).
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Gnu ≫ Tar Version <= 1.30
Debian ≫ Debian Linux Version8.0
Debian ≫ Debian Linux Version9.0
Opensuse ≫ Leap Version15.0
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.53% 0.403
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 4.7 1 3.6
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
nvd@nist.gov 1.9 3.4 2.9
AV:L/AC:M/Au:N/C:N/I:N/A:P
CWE-835 Loop with Unreachable Exit Condition ('Infinite Loop')

The product contains an iteration or loop with an exit condition that cannot be reached, i.e., an infinite loop.

http://git.savannah.gnu.org/cgit/tar.git/commit/?id=c15c42ccd1e2377945fd0414eca1a49294bff454
Patch
Third Party Advisory
http://lists.gnu.org/archive/html/bug-tar/2018-12/msg00023.html
Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00077.html
Third Party Advisory
Mailing List
http://www.securityfocus.com/bid/106354
Third Party Advisory
VDB Entry
https://lists.debian.org/debian-lts-announce/2018/12/msg00023.html
Third Party Advisory
Mailing List
https://lists.debian.org/debian-lts-announce/2021/11/msg00025.html
Third Party Advisory
Mailing List
https://news.ycombinator.com/item?id=18745431
Third Party Advisory
Exploit
https://security.gentoo.org/glsa/201903-05
Third Party Advisory
https://twitter.com/thatcks/status/1076166645708668928
Patch
Third Party Advisory
https://utcc.utoronto.ca/~cks/space/blog/sysadmin/TarFindingTruncateBug
Patch
Third Party Advisory