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RedHat: RHSA-2020-4687-01 Moderate: oddjob Symlink Attack Risk

red hat
Calendar Grey November 3, 2020
Dist Redhat Esm H88
Red Hat has issued a medium-level security patch for oddjob to mitigate a possible symlink attack vulnerability. Discover more details!
An update for oddjob is now available for Red Hat Enterprise Linux 8

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

Summary

The oddjob packages contain a D-Bus service which performs particular tasks for clients which connect to it and issue requests using the system-wide message bus.
The following packages have been upgraded to a later upstream version: oddjob (0.34.5). (BZ#1833289)
Security Fix(es):
* oddjob: race condition in oddjob_selinux_mkdir function in mkhomedir.c can lead to symlink attack (CVE-2020-10737)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Additional Changes:
For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.3 Release Notes linked from the References section.

Topics%20covered

Topics Covered

security advisory moderate red hat bug fix symlink attack oddjob

References

https://access.redhat.com/security/cve/CVE-2020-10737 https://access.redhat.com/security/updates/classification/#moderate https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/8.3_release_notes/

Package List

Red Hat Enterprise Linux AppStream (v. 8):
Source: oddjob-0.34.5-3.el8.src.rpm
aarch64: oddjob-0.34.5-3.el8.aarch64.rpm oddjob-debuginfo-0.34.5-3.el8.aarch64.rpm oddjob-debugsource-0.34.5-3.el8.aarch64.rpm oddjob-mkhomedir-0.34.5-3.el8.aarch64.rpm oddjob-mkhomedir-debuginfo-0.34.5-3.el8.aarch64.rpm
ppc64le: oddjob-0.34.5-3.el8.ppc64le.rpm oddjob-debuginfo-0.34.5-3.el8.ppc64le.rpm oddjob-debugsource-0.34.5-3.el8.ppc64le.rpm oddjob-mkhomedir-0.34.5-3.el8.ppc64le.rpm oddjob-mkhomedir-debuginfo-0.34.5-3.el8.ppc64le.rpm
s390x: oddjob-0.34.5-3.el8.s390x.rpm oddjob-debuginfo-0.34.5-3.el8.s390x.rpm oddjob-debugsource-0.34.5-3.el8.s390x.rpm oddjob-mkhomedir-0.34.5-3.el8.s390x.rpm oddjob-mkhomedir-debuginfo-0.34.5-3.el8.s390x.rpm
x86_64: oddjob-0.34.5-3.el8.x86_64.rpm oddjob-debuginfo-0.34.5-3.el8.x86_64.rpm oddjob-debugsource-0.34.5-3.el8.x86_64.rpm oddjob-mkhomedir-0.34.5-3.el8.x86_64.rpm oddjob-mkhomedir-debuginfo-0.34.5-3.el8.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/


Advisory ID: RHSA-2020:4687-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:4687
Issue date: 2020-11-03

Topic

An update for oddjob is now available for Red Hat Enterprise Linux 8.Red Hat Product Security has rated this update as having a security impactof Moderate. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available for each vulnerability fromthe CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory moderate red hat bug fix symlink attack oddjob

Relevant Releases Architectures

Red Hat Enterprise Linux AppStream (v. 8) - aarch64, ppc64le, s390x, x86_64

Bugs Fixed

1833042 - CVE-2020-10737 oddjob: race condition in oddjob_selinux_mkdir function in mkhomedir.c can lead to symlink attack

1833289 - [Rebase] Rebase oddjob to 0.34.5

1886362 - oddjob-mkhomedir - homedir has a wrong permissions

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