CVE-2019-20907
HIGHCVSS 7.5/10EPSS 6.30%
Last modified
CVE-2019-20907 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. In Lib/tarfile.py in Python through 3.8.3, an attacker is able to craft a TAR archive leading to an infinite loop when opened by tarfile.open, because _proc_pax lacks header validation.. EPSS estimates a 6.30% chance of exploitation in the next 30 days.
Description
In Lib/tarfile.py in Python through 3.8.3, an attacker is able to craft a TAR archive leading to an infinite loop when opened by tarfile.open, because _proc_pax lacks header validation.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Python | Python | >= 3.5.0, < 3.5.10 |
| Python | Python | >= 3.6.0, < 3.6.12 |
| Python | Python | >= 3.7.0, < 3.7.9 |
| Python | Python | >= 3.8.0, < 3.8.5 |
| Opensuse | Leap | 15.1 |
| Opensuse | Leap | 15.2 |
| Debian | Debian Linux | 9.0 |
| Fedoraproject | Fedora | 31 |
| Fedoraproject | Fedora | 32 |
| Canonical | Ubuntu Linux | 12.04 |
| Canonical | Ubuntu Linux | 14.04 |
| Canonical | Ubuntu Linux | 16.04 |
| Canonical | Ubuntu Linux | 18.04 |
| Canonical | Ubuntu Linux | 20.04 |
| Netapp | Active Iq Unified Manager | >= 9.5 |
| Netapp | Cloud Volumes Ontap Mediator | All versions |
| Oracle | Zfs Storage Appliance Kit | 8.8 |
References
- http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00051.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00052.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00053.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00056.htmlMailing List, Third Party Advisory
- https://bugs.python.org/issue39017Issue Tracking, Vendor Advisory
- https://github.com/python/cpython/pull/21454Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/08/msg00034.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/11/msg00032.htmlMailing List, Third Party Advisory
- https://security.gentoo.org/glsa/202008-01Third Party Advisory
- https://security.netapp.com/advisory/ntap-20200731-0002/Third Party Advisory
- https://usn.ubuntu.com/4428-1/Third Party Advisory
- https://www.oracle.com/security-alerts/cpujan2021.htmlPatch, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00051.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00052.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00053.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00056.htmlMailing List, Third Party Advisory
- https://bugs.python.org/issue39017Issue Tracking, Vendor Advisory
- https://github.com/python/cpython/pull/21454Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/08/msg00034.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/11/msg00032.htmlMailing List, Third Party Advisory
- https://security.gentoo.org/glsa/202008-01Third Party Advisory
- https://security.netapp.com/advisory/ntap-20200731-0002/Third Party Advisory
- https://usn.ubuntu.com/4428-1/Third Party Advisory
- https://www.oracle.com/security-alerts/cpujan2021.htmlPatch, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2019-20907?
In Lib/tarfile.py in Python through 3.8.3, an attacker is able to craft a TAR archive leading to an infinite loop when opened by tarfile.open, because _proc_pax lacks header validation.
How severe is CVE-2019-20907?
CVE-2019-20907 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 6.30% probability of exploitation in the next 30 days.
How do I fix CVE-2019-20907?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2019
- CVE-2019-20899The Gadget API in Atlassian Jira Server and Data Center in a…5.3
- CVE-2019-2090In isPackageDeviceAdminOnAnyUser of PackageManagerService.ja…
- CVE-2019-20900Affected versions of Atlassian Jira Server and Data Center a…4.8
- CVE-2019-20901The login.jsp resource in Jira before version 8.5.2, and fro…6.1
- CVE-2019-20902Upgrading Crowd via XML Data Transfer can reactivate a disab…7.5
- CVE-2019-20903The hyperlinks functionality in atlaskit/editor-core in befo…5.4
- CVE-2019-20908An issue was discovered in drivers/firmware/efi/efi.c in the…6.7
- CVE-2019-20909An issue was discovered in GNU LibreDWG through 0.9.3. There…7.5
- CVE-2019-2091In GetPermittedAccessibilityServicesForUser of DevicePolicyM…
- CVE-2019-20910An issue was discovered in GNU LibreDWG through 0.9.3. Craft…8.1
- CVE-2019-20911An issue was discovered in GNU LibreDWG through 0.9.3. Craft…6.5
- CVE-2019-20912An issue was discovered in GNU LibreDWG through 0.9.3. Craft…8.8
Are you affected by CVE-2019-20907?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST