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).
References
Configurations
History
21 Nov 2024, 04:01
| Type | Values Removed | Values Added |
|---|---|---|
| References | () http://git.savannah.gnu.org/cgit/tar.git/commit/?id=c15c42ccd1e2377945fd0414eca1a49294bff454 - Patch, Third Party Advisory | |
| References | () http://lists.gnu.org/archive/html/bug-tar/2018-12/msg00023.html - Third Party Advisory | |
| References | () http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00077.html - Mailing List, Third Party Advisory | |
| References | () http://www.securityfocus.com/bid/106354 - Third Party Advisory, VDB Entry | |
| References | () https://lists.debian.org/debian-lts-announce/2018/12/msg00023.html - Mailing List, Third Party Advisory | |
| References | () https://lists.debian.org/debian-lts-announce/2021/11/msg00025.html - Mailing List, Third Party Advisory | |
| References | () https://news.ycombinator.com/item?id=18745431 - Exploit, Third Party Advisory | |
| References | () https://security.gentoo.org/glsa/201903-05 - Third Party Advisory | |
| References | () https://twitter.com/thatcks/status/1076166645708668928 - Patch, Third Party Advisory | |
| References | () https://utcc.utoronto.ca/~cks/space/blog/sysadmin/TarFindingTruncateBug - Patch, Third Party Advisory |
Information
Published : 2018-12-26 18:29
Updated : 2024-11-21 04:01
NVD link : CVE-2018-20482
Mitre link : CVE-2018-20482
CVE.ORG link : CVE-2018-20482
JSON object : View
Products Affected
debian
- debian_linux
gnu
- tar
opensuse
- leap
CWE
CWE-835
Loop with Unreachable Exit Condition ('Infinite Loop')