PatchTheCVECVE-2017-9671: A heap overflow in apk (Alpine Linux's package manager) allows a remote attacker to cause a denial of service,
CVE-2017-9671 is a high-severity flaw (CVSS 7.8) affecting alpine linux. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
A heap overflow in apk (Alpine Linux's package manager) allows a remote attacker to cause a denial of service, or achieve code execution, by crafting a malicious APKINDEX.tar.gz file with a bad pax header block.
Why this priority
- High severity
- Public exploit reference
- On your watchlist
No fix is published yet: follow the downgrade or mitigation steps.
Risk facts
| CVSS score | 7.8 (High) |
| Attack vector | Local |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | Required |
| EPSS exploit chance | 3.2% (top 12%) |
| CISA exploited list | No |
| Weakness | CWE-119 |
| Published | 2017-07-17 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2017-9671?
alpine linux: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.
Is CVE-2017-9671 being exploited?
CVE-2017-9671 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2017-9671 affect?
CVE-2017-9671 affects alpine linux. Severity is high (CVSS 7.8). A heap overflow in apk (Alpine Linux's package manager) allows a remote attacker to cause a denial of service, or achieve code execution, by crafting a malicious APKINDEX.tar.gz file with a bad pax header block.
How urgent is CVE-2017-9671?
Priority 59/100. High severity; Public exploit reference; On your watchlist
Related CVEs
- CVE-2018-1000849 HIGH 8.8 UPGRADE Alpine Linux version Versions prior to 2.6.10, 2.7.6, and 2.10.1 contains a Other/Unknown vulnerability in apk
- CVE-2017-9669 HIGH 7.8 MITIGATE A heap overflow in apk (Alpine Linux's package manager) allows a remote attacker to cause a denial of service,