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Alpine: multiple borgbackup packages: security update to 1.2.6-r0

medium Tenable Self-Hosted Container Security Plugin ID 427136

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - borgbackup is an opensource, deduplicating archiver with compression and authenticated encryption. A flaw
 in the cryptographic authentication scheme in borgbackup allowed an attacker to fake archives and
 potentially indirectly cause backup data loss in the repository. The attack requires an attacker to be
 able to: 1. insert files (with no additional headers) into backups and 2. gain write access to the
 repository. This vulnerability does not disclose plaintext to the attacker, nor does it affect the
 authenticity of existing archives. Creating plausible fake archives may be feasible for empty or small
 archives, but is unlikely for large archives. The issue has been fixed in borgbackup 1.2.5. Users are
 advised to upgrade. Additionally to installing the fixed code, users must follow the upgrade procedure as
 documented in the change log. Data loss after being attacked can be avoided by reviewing the archives
 (timestamp and contents valid and as expected) after any "borg check --repair" and before "borg prune".
 There are no known workarounds for this vulnerability. (CVE-2023-36811)

See Also

https://security.alpinelinux.org/vuln/CVE-2023-36811

Plugin Details

Severity: Medium

ID: 427136

Version: Revision 1.8

Type: Local

Published: 5/16/2025

Updated: 10/20/2025

Supported Sensors: Agentless Assessment

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.66

CVSS v2

Risk Factor: Low

Base Score: 3.8

Temporal Score: 2.8

Vector: CVSS2#AV:L/AC:H/Au:S/C:N/I:C/A:N

CVSS Score Source: CVE-2023-36811

CVSS v3

Risk Factor: Medium

Base Score: 4.7

Temporal Score: 4.1

Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS v4

Risk Factor: Medium

Base Score: 6

Threat Score: 2.3

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N

Vulnerability Information

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 8/30/2023

Reference Information

CVE: CVE-2023-36811