What’s Vulnerable › Vulnerabilities

CVE-2018-1000849

• Severity: high (CVSS 8.8 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.5% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2018-12-20 · updated 2026-06-17
• Weakness: CWE-20

Description

Alpine Linux version Versions prior to 2.6.10, 2.7.6, and 2.10.1 contains a Other/Unknown vulnerability in apk-tools (Alpine Linux' package manager) that can result in Remote Code Execution. This attack appear to be exploitable via A specially crafted APK-file can cause apk to write arbitrary data to an attacker-specified file, due to bugs in handling long link target name and the way a regular file is extracted.. This vulnerability appears to have been fixed in 2.6.10, 2.7.6, and 2.10.1.

Affected products

• Alpinelinux Alpine Linux: before 2.6.10; from 2.7.0 before 2.7.6; from 2.7.7 before 2.10.1 — fixed in 2.10.1, 2.6.10, 2.7.6

How to fix

Upgrade to a fixed version: Alpinelinux Alpine Linux 2.10.1, 2.6.10, 2.7.6. Check the vendor advisory for mitigations.

References

• https://alpinelinux.org/posts/Alpine-3.8.1-released.html
• https://git.alpinelinux.org/cgit/apk-tools/commit/?id=6484ed9849f03971eb48ee1fdc21a2f128247eb1
• https://justi.cz/security/2018/09/13/alpine-apk-rce.html
• https://alpinelinux.org/posts/Alpine-3.8.1-released.html
• https://git.alpinelinux.org/cgit/apk-tools/commit/?id=6484ed9849f03971eb48ee1fdc21a2f128247eb1
• https://justi.cz/security/2018/09/13/alpine-apk-rce.html

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