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Alerts This Week
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SUSE: 2020:3507-1 Important: Linux Kernel Security Issues and Fixes

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Calendar Grey November 24, 2020
Scroller Suse
SUSE Security Update: Security update for the Linux Kernel _________________________________________
An update that solves three vulnerabilities and has 17 fixes is now available

Summary

The SUSE Linux Enterprise 15 SP1 kernel was updated to receive various security and bugfixes. The following security bugs were fixed: - CVE-2020-25705: A flaw in the way reply ICMP packets are limited in was found that allowed to quickly scan open UDP ports. This flaw allowed an off-path remote user to effectively bypassing source port UDP randomization. The highest threat from this vulnerability is to confidentiality and possibly integrity, because software and services that rely on UDP source port randomization (like DNS) are indirectly affected as well. Kernel versions may be vulnerable to this issue (bsc#1175721, bsc#1178782). - CVE-2020-25704: Fixed a memory leak in perf_event_parse_addr_filter() (bsc#1178393). - CVE-2020-25668: Fixed a use-after-free in con_font_op() (bnc#1178123).

Topics%20covered

Topics Covered

security advisory security issue DoS important SUSE Linux Kernel UDP port scan

References

#1058115 #1163592 #1167030 #1172873 #1175306

#1175721 #1176855 #1176907 #1176983 #1177703

#1177819 #1177820 #1178123 #1178393 #1178589

#1178622 #1178686 #1178765 #1178782 #927455

Cross- CVE-2020-25668 CVE-2020-25704 CVE-2020-25705

Affected Products:

SUSE Linux Enterprise Module for Live Patching 15-SP1

https://www.suse.com/security/cve/CVE-2020-25668.html

https://www.suse.com/security/cve/CVE-2020-25704.html

https://www.suse.com/security/cve/CVE-2020-25705.html

https://bugzilla.suse.com/1058115

https://bugzilla.suse.com/1163592

https://bugzilla.suse.com/1167030

https://bugzilla.suse.com/1172873

https://bugzilla.suse.com/1175306

https://bugzilla.suse.com/1175721

https://bugzilla.suse.com/1176855

https://bugzilla.suse.com/1176907

Severity
important
Lowest
Low
Medium
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Critical

Announcement ID: SUSE-SU-2020:3507-1
Rating: important

Topics%20covered

Topics Covered

security advisory security issue DoS important SUSE Linux Kernel UDP port scan

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