CVE-2021-4203
See a problem?- Source
- https://nvd.nist.gov/vuln/detail/CVE-2021-4203
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-4203.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2021-4203
- Related
- Published
- 2022-03-25T19:15:09Z
- Modified
- 2024-09-18T03:16:34.900096Z
- Severity
-
- 6.8 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:H CVSS Calculator
- Summary
- [none]
- Details
-
A use-after-free read flaw was found in sockgetsockopt() in net/core/sock.c due to SOPEERCRED and SO_PEERGROUPS race with listen() (and connect()) in the Linux kernel. In this flaw, an attacker with a user privileges may crash the system or leak internal kernel information.
- References
-
- https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=35306eb23814
- https://security.netapp.com/advisory/ntap-20221111-0003/
- https://bugs.chromium.org/p/project-zero/issues/detail?id=2230&can=7&q=modified-after%3Atoday-30&sort=-modified&colspec=ID%20Type%20Status%20Priority%20Milestone%20Owner%20Summary%20Modified%20Cve&cells=tiles&redir=1
- https://bugzilla.redhat.com/show_bug.cgi?id=2036934
- https://www.oracle.com/security-alerts/cpujul2022.html
- https://lore.kernel.org/netdev/20210929225750.2548112-1-eric.dumazet%40gmail.com/T/
- https://security-tracker.debian.org/tracker/CVE-2021-4203
Affected packages
Debian:11 / linux
Package
- Name
- linux
- Purl
- pkg:deb/debian/linux?arch=source
Debian:12 / linux
Package
- Name
- linux
- Purl
- pkg:deb/debian/linux?arch=source
Debian:13 / linux
Package
- Name
- linux
- Purl
- pkg:deb/debian/linux?arch=source