CVE catalog
CVE-2022-42919
python3.11: CVE-2022-42919
- Severity
- High · CVSS 7.8
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.76% · Oct 22, 2026
Python 3.9.x before 3.9.16 and 3.10.x before 3.10.9 on Linux allows local privilege escalation in a non-default configuration. The Python multiprocessing library, when used with the forkserver start method on Linux, allows pickles to be deserialized from any user in the same machine local network namespace, which in many system configurations means any user on the same machine. Pickles can execute arbitrary code. Thus, this allows for local user privilege escalation to the user that any forkserver process is running as. Setting multiprocessing.util.abstract_sockets_supported to False is a workaround. The forkserver start method for multiprocessing is not the default start method. This issue is Linux specific because only Linux supports abstract namespace sockets. CPython before 3.9 does not make use of Linux abstract namespace sockets by default. Support for users manually specifying an abstract namespace socket was added as a bugfix in 3.7.8 and 3.8.3, but users would need to make specific uncommon API calls in order to do that in CPython before 3.9.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | pypy3 | sid | 8.0.1+dfsg-1 | fixed |
| Debian | pypy3 | forky | 8.0.1+dfsg-1 | fixed |
| Debian | pypy3 | trixie | 7.3.19+dfsg-2 | fixed |
| Debian | pypy3 | bookworm | 7.3.11+dfsg-2+deb12u3 | fixed |
| Debian | python3.11 | bookworm | 3.11.2-6+deb12u8 | fixed |
| Debian | python3.11 | bookworm-security | 3.11.2-6+deb12u9 | fixed |
| Ubuntu | python3.10 | 22.04 | 3.10.0-2 | vulnerable |
| Ubuntu | python3.10 | 22.04 | 3.10.0-3 | vulnerable |
| Ubuntu | python3.10 | 22.04 | 3.10.0-4 | vulnerable |
| Ubuntu | python3.10 | 22.04 | 3.10.0-5 | vulnerable |
| Ubuntu | python3.10 | 22.04 | 3.10.0-5build1 | vulnerable |
| Ubuntu | python3.10 | 22.04 | 3.10.1-1 | vulnerable |
| Ubuntu | python3.10 | 22.04 | 3.10.1-2 | vulnerable |
| Ubuntu | python3.10 | 22.04 | 3.10.2-1 | vulnerable |
| Ubuntu | python3.10 | 22.04 | 3.10.2-5 | vulnerable |
| Ubuntu | python3.10 | 22.04 | 3.10.2-7 | vulnerable |
| Ubuntu | python3.10 | 22.04 | 3.10.3-1 | vulnerable |
| Ubuntu | python3.10 | 22.04 | 3.10.4-3 | vulnerable |
| Ubuntu | python3.10 | 22.04 | 3.10.4-3ubuntu0.1 | vulnerable |
| Ubuntu | python3.10 | 22.04 | 3.10.6-1~22.04 | vulnerable |
| Ubuntu | python3.10 | 22.04 | 3.10.6-1~22.04.1 | fixed |
| Ubuntu | python3.9 | pro | 3.9.0~rc1-1~20.04 | vulnerable |
| Ubuntu | python3.9 | pro | 3.9.0-5~20.04 | vulnerable |
| Ubuntu | python3.9 | pro | 3.9.5-3~20.04.1 | vulnerable |
| Ubuntu | python3.9 | pro | 3.9.5-3ubuntu0~20.04.1 | vulnerable |
| Ubuntu | python3.9 | pro | 3.9.5-3ubuntu0~20.04.1+esm1 | fixed |
| Ubuntu | python3.10 | 22.04 | 3.10.0-2 | vulnerable |
| Ubuntu | python3.10 | 22.04 | 3.10.0-3 | vulnerable |
| Ubuntu | python3.10 | 22.04 | 3.10.0-4 | vulnerable |
| Ubuntu | python3.10 | 22.04 | 3.10.0-5 | vulnerable |
| Ubuntu | python3.10 | 22.04 | 3.10.0-5build1 | vulnerable |
| Ubuntu | python3.10 | 22.04 | 3.10.1-1 | vulnerable |
| Ubuntu | python3.10 | 22.04 | 3.10.1-2 | vulnerable |
| Ubuntu | python3.10 | 22.04 | 3.10.2-1 | vulnerable |
| Ubuntu | python3.10 | 22.04 | 3.10.2-5 | vulnerable |
| Ubuntu | python3.10 | 22.04 | 3.10.2-7 | vulnerable |
| Ubuntu | python3.10 | 22.04 | 3.10.3-1 | vulnerable |
| Ubuntu | python3.10 | 22.04 | 3.10.4-3 | vulnerable |
| Ubuntu | python3.10 | 22.04 | 3.10.4-3ubuntu0.1 | vulnerable |
| Ubuntu | python3.10 | 22.04 | 3.10.6-1~22.04 | vulnerable |
| Ubuntu | python3.10 | 22.04 | 3.10.6-1~22.04.1 | fixed |
| Ubuntu | python3.11 | pro | 3.11.0~rc1-1~22.04 | vulnerable |
| Ubuntu | python3.11 | pro | 3.11.0~rc1-1~22.04.1~esm1 | fixed |
| Suse | python39 | linux enterprise module for basesystem 15 sp3 | 3.9.15-150300.4.21.1 | fixed |
| Suse | python39-core | linux enterprise module for basesystem 15 sp3 | 3.9.15-150300.4.21.1 | fixed |
| Suse | python39-core | linux enterprise module for development tools 15 sp3 | 3.9.15-150300.4.21.1 | fixed |
| Opensuse | python39 | leap 15.3 | 3.9.15-150300.4.21.1 | fixed |
| Opensuse | python39-core | leap 15.3 | 3.9.15-150300.4.21.1 | fixed |
| Opensuse | python39-documentation | leap 15.3 | 3.9.15-150300.4.21.1 | fixed |
| Opensuse | python39 | leap 15.4 | 3.9.15-150300.4.21.1 | fixed |
| Opensuse | python39-core | leap 15.4 | 3.9.15-150300.4.21.1 | fixed |
| Opensuse | python39-documentation | leap 15.4 | 3.9.15-150300.4.21.1 | fixed |
| Opensuse | python310 | tumbleweed | 3.10.8-2.1 | fixed |
| Opensuse | python311 | tumbleweed | 3.11.0-1.1 | fixed |
| Suse | python310 | linux enterprise module for python 3 15 sp4 | 3.10.8-150400.4.15.1 | fixed |
| Suse | python310-core | linux enterprise module for python 3 15 sp4 | 3.10.8-150400.4.15.1 | fixed |
| Opensuse | python310 | leap 15.4 | 3.10.8-150400.4.15.1 | fixed |
| Opensuse | python310-core | leap 15.4 | 3.10.8-150400.4.15.1 | fixed |
| Opensuse | python310-documentation | leap 15.4 | 3.10.8-150400.4.15.1 | fixed |
| Opensuse | python39 | tumbleweed | 3.9.15-2.1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | pypy3 | source | sid | 7.3.11+dfsg-1 | not yet assigned | Not reported | Not reported |
| Debian | pypy3 | source | forky | 7.3.11+dfsg-1 | not yet assigned | Not reported | Not reported |
| Debian | pypy3 | source | trixie | 7.3.11+dfsg-1 | not yet assigned | Not reported | Not reported |
| Debian | pypy3 | source | bookworm | 7.3.11+dfsg-1 | not yet assigned | Not reported | Not reported |
| Debian | python3.11 | source | bookworm | 3.11.0-2 | not yet assigned | Not reported | Not reported |
| Ubuntu | python3.10 | deb | 22.04 | 3.10.6-1~22.04.1 | Not reported | USN-5713-1 | Not reported |
| Ubuntu | python3.9 | deb | pro | 3.9.5-3ubuntu0~20.04.1+esm1 | Not reported | UBUNTU-CVE-2022-42919 | Not reported |
| Ubuntu | python3.10 | deb | 22.04 | 3.10.6-1~22.04.1 | Not reported | UBUNTU-CVE-2022-42919 | Not reported |
| Ubuntu | python3.11 | deb | pro | 3.11.0~rc1-1~22.04.1~esm1 | Not reported | UBUNTU-CVE-2022-42919 | Not reported |
| Suse | python39 | rpm | linux enterprise module for basesystem 15 sp3 | 3.9.15-150300.4.21.1 | Not reported | SUSE-SU-2022:4071-1 | Not reported |
| Suse | python39-core | rpm | linux enterprise module for basesystem 15 sp3 | 3.9.15-150300.4.21.1 | Not reported | SUSE-SU-2022:4071-1 | Not reported |
| Suse | python39-core | rpm | linux enterprise module for development tools 15 sp3 | 3.9.15-150300.4.21.1 | Not reported | SUSE-SU-2022:4071-1 | Not reported |
| Opensuse | python39 | rpm | leap 15.3 | 3.9.15-150300.4.21.1 | Not reported | SUSE-SU-2022:4071-1 | Not reported |
| Opensuse | python39-core | rpm | leap 15.3 | 3.9.15-150300.4.21.1 | Not reported | SUSE-SU-2022:4071-1 | Not reported |
| Opensuse | python39-documentation | rpm | leap 15.3 | 3.9.15-150300.4.21.1 | Not reported | SUSE-SU-2022:4071-1 | Not reported |
| Opensuse | python39 | rpm | leap 15.4 | 3.9.15-150300.4.21.1 | Not reported | SUSE-SU-2022:4071-1 | Not reported |
| Opensuse | python39-core | rpm | leap 15.4 | 3.9.15-150300.4.21.1 | Not reported | SUSE-SU-2022:4071-1 | Not reported |
| Opensuse | python39-documentation | rpm | leap 15.4 | 3.9.15-150300.4.21.1 | Not reported | SUSE-SU-2022:4071-1 | Not reported |
| Opensuse | python310 | rpm | tumbleweed | 3.10.8-2.1 | Not reported | OPENSUSE-SU-2024:12481-1 | Not reported |
| Opensuse | python311 | rpm | tumbleweed | 3.11.0-1.1 | Not reported | OPENSUSE-SU-2024:12453-1 | Not reported |
| Suse | python310 | rpm | linux enterprise module for python 3 15 sp4 | 3.10.8-150400.4.15.1 | Not reported | SUSE-SU-2022:4004-1 | Not reported |
| Suse | python310-core | rpm | linux enterprise module for python 3 15 sp4 | 3.10.8-150400.4.15.1 | Not reported | SUSE-SU-2022:4004-1 | Not reported |
| Opensuse | python310 | rpm | leap 15.4 | 3.10.8-150400.4.15.1 | Not reported | SUSE-SU-2022:4004-1 | Not reported |
| Opensuse | python310-core | rpm | leap 15.4 | 3.10.8-150400.4.15.1 | Not reported | SUSE-SU-2022:4004-1 | Not reported |
| Opensuse | python310-documentation | rpm | leap 15.4 | 3.10.8-150400.4.15.1 | Not reported | SUSE-SU-2022:4004-1 | Not reported |
| Opensuse | python39 | rpm | tumbleweed | 3.9.15-2.1 | Not reported | OPENSUSE-SU-2024:12482-1 | Not reported |
OpenFactory catalog packages
[openSUSE Tumbleweed]
- [python310-curses]Unknown
Source package: [python310]
Details (1)
3.10.20-9.1· x86_64 · tumbleweedUnknown · Fixed:
3.10.8-2.1Version impact unknown
dsa · python310 · opensuse · tumbleweed
- [python310-dbm]Unknown
Source package: [python310]
Details (1)
3.10.20-9.1· x86_64 · tumbleweedUnknown · Fixed:
3.10.8-2.1Version impact unknown
dsa · python310 · opensuse · tumbleweed
- [python310-idle]Unknown
Source package: [python310]
Details (1)
3.10.20-9.1· x86_64 · tumbleweedUnknown · Fixed:
3.10.8-2.1Version impact unknown
dsa · python310 · opensuse · tumbleweed
- [python310-tk]Unknown
Source package: [python310]
Details (1)
3.10.20-9.1· x86_64 · tumbleweedUnknown · Fixed:
3.10.8-2.1Version impact unknown
dsa · python310 · opensuse · tumbleweed
- [python311-32bit]Unknown
Source package: [python311]
Details (1)
3.11.15-9.1· x86_64 · tumbleweedUnknown · Fixed:
3.11.0-1.1Version impact unknown
dsa · python311 · opensuse · tumbleweed
- [python311-curses]Unknown
Source package: [python311]
Details (1)
3.11.15-9.1· x86_64 · tumbleweedUnknown · Fixed:
3.11.0-1.1Version impact unknown
dsa · python311 · opensuse · tumbleweed
- [python311-dbm]Unknown
Source package: [python311]
Details (1)
3.11.15-9.1· x86_64 · tumbleweedUnknown · Fixed:
3.11.0-1.1Version impact unknown
dsa · python311 · opensuse · tumbleweed
- [python311-idle]Unknown
Source package: [python311]
Details (1)
3.11.15-9.1· x86_64 · tumbleweedUnknown · Fixed:
3.11.0-1.1Version impact unknown
dsa · python311 · opensuse · tumbleweed
- [python311-tk]Unknown
Source package: [python311]
Details (1)
3.11.15-9.1· x86_64 · tumbleweedUnknown · Fixed:
3.11.0-1.1Version impact unknown
dsa · python311 · opensuse · tumbleweed
- [python311-x86-64-v3]Unknown
Source package: [python311]
Details (1)
3.11.15-9.1· x86_64 · tumbleweedUnknown · Fixed:
3.11.0-1.1Version impact unknown
dsa · python311 · opensuse · tumbleweed
[Debian 12 (Bookworm)]
- [idle-python3.11]Fixed
Source package: [python3.11]
Details (4)
3.11.2-6+deb12u8· all · bookwormFixed · Fixed:
3.11.0-2dsa · python3.11 · debian · bookworm
3.11.2-6+deb12u8· all · bookwormFixed · Fixed:
3.11.0-2dsa · python3.11 · debian · bookworm
3.11.2-6+deb12u3· all · bookworm-securityFixed · Fixed:
3.11.0-2dsa · python3.11 · debian · bookworm
3.11.2-6+deb12u3· all · bookworm-securityFixed · Fixed:
3.11.0-2dsa · python3.11 · debian · bookworm
- [libpython3.11]Fixed
Source package: [python3.11]
Details (4)
3.11.2-6+deb12u8· amd64 · bookwormFixed · Fixed:
3.11.0-2dsa · python3.11 · debian · bookworm
3.11.2-6+deb12u8· arm64 · bookwormFixed · Fixed:
3.11.0-2dsa · python3.11 · debian · bookworm
3.11.2-6+deb12u3· amd64 · bookworm-securityFixed · Fixed:
3.11.0-2dsa · python3.11 · debian · bookworm
3.11.2-6+deb12u3· arm64 · bookworm-securityFixed · Fixed:
3.11.0-2dsa · python3.11 · debian · bookworm
- [libpython3.11-dbg]Fixed
Source package: [python3.11]
Details (4)
3.11.2-6+deb12u8· amd64 · bookwormFixed · Fixed:
3.11.0-2dsa · python3.11 · debian · bookworm
3.11.2-6+deb12u8· arm64 · bookwormFixed · Fixed:
3.11.0-2dsa · python3.11 · debian · bookworm
3.11.2-6+deb12u3· amd64 · bookworm-securityFixed · Fixed:
3.11.0-2dsa · python3.11 · debian · bookworm
3.11.2-6+deb12u3· arm64 · bookworm-securityFixed · Fixed:
3.11.0-2dsa · python3.11 · debian · bookworm
- [libpython3.11-dev]Fixed
Source package: [python3.11]
Details (4)
3.11.2-6+deb12u8· amd64 · bookwormFixed · Fixed:
3.11.0-2dsa · python3.11 · debian · bookworm
3.11.2-6+deb12u8· arm64 · bookwormFixed · Fixed:
3.11.0-2dsa · python3.11 · debian · bookworm
3.11.2-6+deb12u3· amd64 · bookworm-securityFixed · Fixed:
3.11.0-2dsa · python3.11 · debian · bookworm
3.11.2-6+deb12u3· arm64 · bookworm-securityFixed · Fixed:
3.11.0-2dsa · python3.11 · debian · bookworm
- [libpython3.11-minimal]Fixed
Source package: [python3.11]
Details (4)
3.11.2-6+deb12u8· amd64 · bookwormFixed · Fixed:
3.11.0-2dsa · python3.11 · debian · bookworm
3.11.2-6+deb12u8· arm64 · bookwormFixed · Fixed:
3.11.0-2dsa · python3.11 · debian · bookworm
3.11.2-6+deb12u3· amd64 · bookworm-securityFixed · Fixed:
3.11.0-2dsa · python3.11 · debian · bookworm
3.11.2-6+deb12u3· arm64 · bookworm-securityFixed · Fixed:
3.11.0-2dsa · python3.11 · debian · bookworm
- [libpython3.11-stdlib]Fixed
Source package: [python3.11]
Details (4)
3.11.2-6+deb12u8· amd64 · bookwormFixed · Fixed:
3.11.0-2dsa · python3.11 · debian · bookworm
3.11.2-6+deb12u8· arm64 · bookwormFixed · Fixed:
3.11.0-2dsa · python3.11 · debian · bookworm
3.11.2-6+deb12u3· amd64 · bookworm-securityFixed · Fixed:
3.11.0-2dsa · python3.11 · debian · bookworm
3.11.2-6+deb12u3· arm64 · bookworm-securityFixed · Fixed:
3.11.0-2dsa · python3.11 · debian · bookworm
- [libpython3.11-testsuite]Fixed
Source package: [python3.11]
Details (4)
3.11.2-6+deb12u8· all · bookwormFixed · Fixed:
3.11.0-2dsa · python3.11 · debian · bookworm
3.11.2-6+deb12u8· all · bookwormFixed · Fixed:
3.11.0-2dsa · python3.11 · debian · bookworm
3.11.2-6+deb12u3· all · bookworm-securityFixed · Fixed:
3.11.0-2dsa · python3.11 · debian · bookworm
3.11.2-6+deb12u3· all · bookworm-securityFixed · Fixed:
3.11.0-2dsa · python3.11 · debian · bookworm
- [pypy3]Fixed
Details (2)
7.3.11+dfsg-2+deb12u3· amd64 · bookwormFixed · Fixed:
7.3.11+dfsg-1dsa · pypy3 · debian · bookworm
7.3.11+dfsg-2+deb12u3· arm64 · bookwormFixed · Fixed:
7.3.11+dfsg-1dsa · pypy3 · debian · bookworm
- [pypy3-dev]Fixed
Source package: [pypy3]
Details (2)
7.3.11+dfsg-2+deb12u3· all · bookwormFixed · Fixed:
7.3.11+dfsg-1dsa · pypy3 · debian · bookworm
7.3.11+dfsg-2+deb12u3· all · bookwormFixed · Fixed:
7.3.11+dfsg-1dsa · pypy3 · debian · bookworm
- [pypy3-doc]Fixed
Source package: [pypy3]
Details (2)
7.3.11+dfsg-2+deb12u3· all · bookwormFixed · Fixed:
7.3.11+dfsg-1dsa · pypy3 · debian · bookworm
7.3.11+dfsg-2+deb12u3· all · bookwormFixed · Fixed:
7.3.11+dfsg-1dsa · pypy3 · debian · bookworm
Observed:
References
- [https://access.redhat.com/errata/RHSA-2022:8493]
- [https://cert-portal.siemens.com/productcert/csaf/ssa-806742.json]
- [https://ftp.suse.com/pub/projects/security/]
- [https://osv.dev/vulnerability/SUSE-SU-2022:4004-1]
- [https://osv.dev/vulnerability/SUSE-SU-2022:4071-1]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2022-42919]
- [https://osv.dev/vulnerability/USN-5713-1]
- [https://osv.dev/vulnerability/openSUSE-SU-2024:12453-1]
- [https://osv.dev/vulnerability/openSUSE-SU-2024:12481-1]
- [https://osv.dev/vulnerability/openSUSE-SU-2024:12482-1]
- [https://security-tracker.debian.org/tracker/CVE-2022-42919]
- [https://wid.cert-bund.de/.well-known/csaf/white/2022/wid-sec-w-2022-1904.json]
[CERT-Bund public advisories] · [CISA cybersecurity advisories] · [Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]