CVE-2019-20907

HIGHScheduled

Published:Jul 13, 2020(5 years ago)

Modified:Nov 21, 2024

Remote ExploitNo Auth RequiredNo InteractionLow Complexity

Vulnerability 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.

Attack Characteristics

Network AccessLow ComplexityNo Auth NeededNo User Interaction

🤖

AI analysis not yet available

Plain-English explanation, risk summary, and remediation steps will appear here once AI analysis is complete.

No Fix Known

No patch has been released yet. Apply workarounds or mitigations where available.

Affected Software

Vendor	Product	Versions	Fixed In
python	python	3.5.0 - 3.5.10	-
python	python	3.6.0 - 3.6.12	-
python	python	3.7.0 - 3.7.9

Timeline

Published
CVE disclosed publicly
Jul 13, 20205 years ago
Last Modified
Most recent update
Nov 21, 20241 year ago
Indexed to CVEInsight
Added to this platform
Mar 29, 20261 month ago

References

http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00051....Mailing List
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00052....Mailing List
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00053....Mailing List

CVSS Score

v3.1

7.5/ 10.0

HIGH

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

At a Glance

Affected Products

References

python / python

http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00056....Mailing List

https://bugs.python.org/issue39017Issue Tracking

https://github.com/python/cpython/pull/21454Patch

https://lists.debian.org/debian-lts-announce/2020/08/msg00034.htmlMailing List

https://lists.debian.org/debian-lts-announce/2020/11/msg00032.htmlMailing List

https://lists.debian.org/debian-lts-announce/2023/05/msg00024.html

https://lists.fedoraproject.org/archives/list/package-announce%40lists...

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

http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00051....Mailing List

http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00052....Mailing List

http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00053....Mailing List

http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00056....Mailing List

https://bugs.python.org/issue39017Issue Tracking

https://github.com/python/cpython/pull/21454Patch

https://lists.debian.org/debian-lts-announce/2020/08/msg00034.htmlMailing List

https://lists.debian.org/debian-lts-announce/2020/11/msg00032.htmlMailing List

https://lists.debian.org/debian-lts-announce/2023/05/msg00024.html

https://lists.fedoraproject.org/archives/list/package-announce%40lists...

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

CVSS v3 Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

Impact

ScopeUnchanged

ConfidentialityNone

IntegrityNone

AvailabilityHigh

Impact Analysis

ConfidentialityNone

NoneLowHigh

IntegrityNone

NoneLowHigh

AvailabilityHigh

NoneLowHigh

CVE-2019-20907

✦ Vulnerability Description

Attack Characteristics

Affected Software

Timeline

References

CVSS Score

At a Glance

Official Sources

CVSS v3 Vector

Impact Analysis

Vulnerability Description