Home

CVE-2018-20482

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 users process (e.g., a system backup running as root).

Risk Information

Base Score
4.7
MODERATE
Vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS Score
Exploitation Probability
0.02

Associated Vulnerability

VulnerabilityOS Platform
Vulnerabilities CVE-2018-20482 are affected in GNU Tar 1.30Windows
SUSE-SU-2020:2806-1(SUSE Linux Enterprise Server 12-SP5 ) tar-1.27.1-15.6.3.x86_64.rpmLinux
SUSE-SU-2020:2806-1(SUSE Linux Enterprise Server 12-SP5 ) tar-debuginfo-1.27.1-15.6.3.x86_64.rpmLinux
SUSE-SU-2020:2806-1(SUSE Linux Enterprise Server 12-SP5 ) tar-debugsource-1.27.1-15.6.3.x86_64.rpmLinux
SUSE-SU-2020:2806-1(SUSE Linux Enterprise Server 12-SP5 ) tar-lang-1.27.1-15.6.3.noarch.rpmLinux
GNU version of the tar archiving utility (USN-4692-1) tar_1.29b-2ubuntu0.2_i386.debLinux
GNU version of the tar archiving utility (USN-4692-1) tar_1.29b-2ubuntu0.2_amd64.debLinux
GNU version of the tar archiving utility (USN-4692-1) tar_1.28-2.1ubuntu0.2_i386.debLinux
GNU version of the tar archiving utility (USN-4692-1) tar_1.28-2.1ubuntu0.2_amd64.debLinux
GNU version of the tar archiving utility (USN-4692-1) tar_1.30+dfsg-7ubuntu0.20.04.1_i386.debLinux
GNU version of the tar archiving utility (USN-4692-1) tar_1.30+dfsg-7ubuntu0.20.04.1_amd64.debLinux
GNU version of the tar archiving utility (USN-4692-1) tar_1.30+dfsg-7ubuntu0.20.10.1_i386.debLinux
GNU version of the tar archiving utility (USN-4692-1) tar_1.30+dfsg-7ubuntu0.20.10.1_amd64.debLinux
SUSE-SU-2023:2507-1(SUSE Linux Enterprise Server 12 SP5 ) kernel-azure-4.12.14-16.136.1.x86_64.rpmLinux
SUSE-SU-2023:2507-1(SUSE Linux Enterprise Server 12 SP5 ) kernel-azure-base-4.12.14-16.136.1.x86_64.rpmLinux
SUSE-SU-2023:2507-1(SUSE Linux Enterprise Server 12 SP5 ) kernel-azure-base-debuginfo-4.12.14-16.136.1.x86_64.rpmLinux
SUSE-SU-2023:2507-1(SUSE Linux Enterprise Server 12 SP5 ) kernel-azure-debuginfo-4.12.14-16.136.1.x86_64.rpmLinux
SUSE-SU-2023:2507-1(SUSE Linux Enterprise Server 12 SP5 ) kernel-azure-debugsource-4.12.14-16.136.1.x86_64.rpmLinux
SUSE-SU-2023:2507-1(SUSE Linux Enterprise Server 12 SP5 ) kernel-azure-devel-4.12.14-16.136.1.x86_64.rpmLinux
SUSE-SU-2023:2507-1(SUSE Linux Enterprise Server 12 SP5 ) kernel-devel-azure-4.12.14-16.136.1.noarch.rpmLinux
SUSE-SU-2023:2507-1(SUSE Linux Enterprise Server 12 SP5 ) kernel-source-azure-4.12.14-16.136.1.noarch.rpmLinux
SUSE-SU-2023:2507-1(SUSE Linux Enterprise Server 12 SP5 ) kernel-syms-azure-4.12.14-16.136.1.x86_64.rpmLinux
Loop with Unreachable Exit Condition (Infinite Loop) Vulnerability (CVE-2018-20482)NCM

Patch Details

No records found

References

https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234