[SECURITY] [DLA 2095-1] storebackup security update

2020-02-0510:38:24

lists.debian.org

8.1 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

9.3 High

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:N/AC:M/Au:N/C:C/I:C/A:C

0.005 Low

EPSS

Percentile

77.1%

JSON

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

storeBackup.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.

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

OSVersionArchitecturePackageVersionFilename
Debian10allstorebackup< 3.2.1-2~deb10u1storebackup_3.2.1-2~deb10u1_all.deb
Debian8allstorebackup< 3.2.1-1+deb8u1storebackup_3.2.1-1+deb8u1_all.deb
Debian9allstorebackup< 3.2.1-2~deb9u1storebackup_3.2.1-2~deb9u1_all.deb

OS	Version	Architecture	Package	Version	Filename
Debian	10	all	storebackup	< 3.2.1-2~deb10u1	storebackup_3.2.1-2~deb10u1_all.deb
Debian	8	all	storebackup	< 3.2.1-1+deb8u1	storebackup_3.2.1-1+deb8u1_all.deb
Debian	9	all	storebackup	< 3.2.1-2~deb9u1	storebackup_3.2.1-2~deb9u1_all.deb