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Sicherheit: Ausführen beliebiger Kommandos in glibc
Aktuelle Meldungen Distributionen
Name: Ausführen beliebiger Kommandos in glibc
ID: FEDORA-2021-7ddb8b0537
Distribution: Fedora
Plattformen: Fedora 34
Datum: Mo, 14. Juni 2021, 07:52
Referenzen: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-33574
Applikationen: GNU C library

Originalnachricht

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Fedora Update Notification
FEDORA-2021-7ddb8b0537
2021-06-14 01:05:42.031176
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Name : glibc
Product : Fedora 34
Version : 2.33
Release : 16.fc34
URL : http://www.gnu.org/software/glibc/
Summary : The GNU libc libraries
Description :
The glibc package contains standard libraries which are used by
multiple programs on the system. In order to save disk space and
memory, as well as to make upgrading easier, common system code is
kept in one place and shared between programs. This particular package
contains the most important sets of shared libraries: the standard C
library and the standard math library. Without these two libraries, a
Linux system will not function.

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Update Information:

This glibc update fixes a use-after-free in the `mq_notify` function
(CVE-2021-33574).
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ChangeLog:

* Fri Jun 11 2021 Arjun Shankar <arjun@redhat.com> - 2.33-16
- CVE-2021-33574: Use __pthread_attr_copy in mq_notify (#1965410)
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References:

[ 1 ] Bug #1965410 - CVE-2021-33574 glibc: mq_notify does not handle
separately allocated thread attributes [fedora-all]
https://bugzilla.redhat.com/show_bug.cgi?id=1965410
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This update can be installed with the "dnf" update program. Use
su -c 'dnf upgrade --advisory FEDORA-2021-7ddb8b0537' at the command
line. For more information, refer to the dnf documentation available at
http://dnf.readthedocs.io/en/latest/command_ref.html#upgrade-command-label

All packages are signed with the Fedora Project GPG key. More details on the
GPG keys used by the Fedora Project can be found at
https://fedoraproject.org/keys
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