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Debian 8 Jessie DLA-2095-1 Critical: StoreBackup Symlink Attack

debian lts
Calendar Grey February 5, 2020
Dist Debian Esm H88
BackupSecure Patch Release: Mitigating Symlink Vulnerabilities in Ubuntu LTS to strengthen system integrity and dependability.
storeBackup.pl in storeBackup through 3.5 relies on the /tmp/storeBackup.lock pathname, which allows symlink attacks that possibly lead to privilege escalation
Topics%20covered

Topics Covered

security advisory debian privilege escalation storebackup attack vector

Summary

Local users can also create a plain file named /tmp/storeBackup.lock
to block use of storeBackup until an admin manually deletes that file.

For Debian 8 "Jessie", this problem has been fixed in version
3.2.1-1+deb8u1.

We recommend that you upgrade your storebackup packages.

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS


Severity
critical
Lowest
Low
Medium
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Critical

Package: storebackup
Version: 3.2.1-1+deb8u1
CVE ID: CVE-2020-7040
Debian Bug: 949393

Topics%20covered

Topics Covered

security advisory debian privilege escalation storebackup attack vector

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