CVE-2019-20907
HIGH
7.5
CVSS Score
Published: July 13, 2020 at 12:00 AM UTC
Updated: October 14, 2026 at 08:17 AM UTC
8 products affected across 7 vendorsDebian LinuxFedoraUbuntu Linux
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Severity
HIGH7.5
Exploit prediction
EPSS 3%
SSVC
No known exploit
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.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Debian Linux· Debiandrupal
95%v ≥ 9.5
All versions
Leap· openSUSEdrupal
95%3.5.0 ≤ v < 3.5.103.6.0 ≤ v < 3.6.123.7.0 ≤ v < 3.7.93.8.0 ≤ v < 3.8.5
Affected range stops below 3.5.10, so it looks safe — our inference, not a vendor statement
Affected range stops below 3.6.12, so it looks safe — our inference, not a vendor statement
Affected range stops below 3.7.9, so it looks safe — our inference, not a vendor statement
Affected range stops below 3.8.5, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
- http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00051.html
- http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00052.html
- http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00053.html
- http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00056.html
- https://bugs.python.org/issue39017
References (28)
Vendor AdvisoryMailing ListThird Party Advisory
Source: [email protected]
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00051.htmlVendor AdvisoryMailing ListThird Party Advisory
Source: [email protected]
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00052.htmlVendor AdvisoryMailing ListThird Party Advisory
Source: [email protected]
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00053.htmlVendor AdvisoryMailing ListThird Party Advisory
Source: [email protected]
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00056.htmlMailing ListThird Party Advisory
Source: [email protected]
https://lists.debian.org/debian-lts-announce/2020/08/msg00034.htmlMailing ListThird Party Advisory
Source: [email protected]
https://lists.debian.org/debian-lts-announce/2020/11/msg00032.htmlSSVC — Action Prioritization
SSVCNo known exploitNot automatablePartial impact
SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.
CVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-835
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