CVE-2021-3426CWE-200CWE-22path-traversalinformation-disclosure

CVE-2021-3426

Medium · published May 20, 2021

CVSS v3.1
5.7
EPSS
2%
Percentile
79.3
In the wild
Unconfirmed
What it is

There's a flaw in Python 3's pydoc. A local or adjacent attacker who discovers or is able to convince another local or adjacent user to start a pydoc server could access the server and use it to disclose sensitive information belonging to the other user that they would not normally be able to access. The highest risk of this flaw is to data confidentiality. This flaw affects Python versions before 3.8.9, Python versions before 3.9.3 and Python versions before 3.10.0a7.

The record
Technical detail
CVSS v3.1
5.7 · MEDIUM
Vector
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.01878 · 79.3th percentile
Weaknesses
CWE-200 · Exposure of Sensitive Information to an Unauthorized Actor; CWE-22 · Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Published
2021-05-20T17:15Z
Affected products (22)
ProductVersionsFixed in
python/python< 2.7.182.7.18
python/python≥ 3.6.0, < 3.6.133.6.13
python/python≥ 3.7.0, < 3.7.103.7.10
python/python≥ 3.8.0, < 3.8.83.8.8
python/python≥ 3.9.0, < 3.9.33.9.3
python/pythonall versions—
python/pythonall versions—
python/pythonall versions—
python/pythonall versions—
python/pythonall versions—
python/pythonall versions—
fedoraproject/fedoraall versions—
fedoraproject/fedoraall versions—
fedoraproject/fedoraall versions—
debian/debian_linuxall versions—
redhat/software_collectionsall versions—
redhat/enterprise_linuxall versions—
netapp/cloud_backupall versions—
netapp/ontap_select_deploy_administration_utilityall versions—
netapp/snapcenterall versions—
oracle/communications_cloud_native_core_binding_support_functionall versions—
oracle/zfs_storage_appliance_kitall versions—
References (30)
https://bugzilla.redhat.com/show_bug.cgi?id=1935913 · [email protected]https://lists.debian.org/debian-lts-announce/2021/04/msg00005.html · [email protected]https://lists.debian.org/debian-lts-announce/2023/06/msg00039.html · [email protected]https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/25HVHLBGO2KNPXJ3G426QEYSSCECJDU5/ · [email protected]https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BF2K7HEWADHN6P52R3QLIOX27U3DJ4HI/ · [email protected]https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DQYPUKLLBOZMKFPO7RD7CENTXHUUEUV7/ · [email protected]https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LM5V4VPLBHBEASSAROYPSHXGXGGPHNOE/ · [email protected]https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/N6VXJZSZ6N64AILJX4CTMACYGQGHHD5C/ · [email protected]https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QNGAFMPIYIVJ47FCF2NK2PIX22HUG35B/ · [email protected]https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VPX7Y5GQDNB4FJTREWONGC4ZSVH7TGHF/ · [email protected]https://security.gentoo.org/glsa/202104-04 · [email protected]https://security.netapp.com/advisory/ntap-20210629-0003/ · [email protected]https://www.oracle.com/security-alerts/cpujan2022.html · [email protected]https://www.oracle.com/security-alerts/cpuoct2021.html · [email protected]https://bugzilla.redhat.com/show_bug.cgi?id=1935913 · af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2021/04/msg00005.html · af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2023/06/msg00039.html · af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2024/12/msg00000.html · af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/25HVHLBGO2KNPXJ3G426QEYSSCECJDU5/ · af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BF2K7HEWADHN6P52R3QLIOX27U3DJ4HI/ · af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DQYPUKLLBOZMKFPO7RD7CENTXHUUEUV7/ · af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LM5V4VPLBHBEASSAROYPSHXGXGGPHNOE/ · af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/N6VXJZSZ6N64AILJX4CTMACYGQGHHD5C/ · af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QNGAFMPIYIVJ47FCF2NK2PIX22HUG35B/ · af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VPX7Y5GQDNB4FJTREWONGC4ZSVH7TGHF/ · af854a3a-2127-422b-91ae-364da2661108https://security.gentoo.org/glsa/202104-04 · af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20210629-0003/ · af854a3a-2127-422b-91ae-364da2661108https://www.oracle.com/security-alerts/cpujan2022.html · af854a3a-2127-422b-91ae-364da2661108https://www.oracle.com/security-alerts/cpuoct2021.html · af854a3a-2127-422b-91ae-364da2661108https://cert-portal.siemens.com/productcert/html/ssa-398330.html · 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
EPSS history
Timeline
  • 20 MAY 00:00Z
    There's a flaw in Python 3's pydoc
    cvelistv5