CVE-2020-7040

NameCVE-2020-7040
DescriptionstoreBackup.pl in storeBackup through 3.5 relies on the /tmp/storeBackup.lock pathname, which allows symlink attacks that possibly lead to privilege escalation. (Local users can also create a plain file named /tmp/storeBackup.lock to block use of storeBackup until an admin manually deletes that file.)
SourceCVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesDLA-2095-1
Debian Bugs949393

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
storebackup (PTS)bookworm, bullseye, trixie3.2.1-2fixed
forky, sid3.5.2-1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
storebackupsourcejessie3.2.1-1+deb8u1DLA-2095-1
storebackupsourcestretch3.2.1-2~deb9u1
storebackupsourcebuster3.2.1-2~deb10u1
storebackupsource(unstable)3.2.1-2949393

Notes

https://bugzilla.suse.com/show_bug.cgi?id=1156767
https://www.openwall.com/lists/oss-security/2020/01/20/3
SuSE provided patch: https://www.openwall.com/lists/oss-security/2020/01/20/3/1
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