Summary
An update is available that resolves vulnerability in the product versions listed as affected in the advisory.
An attacker who successfully exploited this vulnerability could cause the product to stop or corrupt memory data.
Vulnerabilities 1
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High 8.7
XZ has a heap-use-after-free bug in threaded .xz decoder
XZ Utils provide a general-purpose data-compression library plus command-line tools. In XZ Utils 5.3.3alpha to 5.8.0, the multithreaded .xz decoder in liblzma has a bug where invalid input can at least result in a crash. The effects include heap use after fre…
Revision history
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#2
Initial CISA Republication of ABB PSIRT SA26P009 advisory
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#1
Initial version.
References
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B&R CYBERSECURITY ADVISORY - PDF Version
https://br-cws-assets.de-fra-1.linodeobjects.com/SA26P009-b2b4dd6d.pdf
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Defense in Depth for B&R products
https://www.br-automation.com/fileadmin/Cyber_Security_-_Defense_in_Depth_for_BR_Products-bdd37e82.pdf
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ICS Advisory ICSA-26-181-05 - Web Version
https://www.cisa.gov/news-events/ics-advisories/icsa-26-181-05
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Recommended Practices
https://www.cisa.gov/news-events/ics-alerts/ics-alert-10-301-01
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Recommended Practices
https://www.cisa.gov/resources-tools/resources/ics-recommended-practices
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Recommended Practices
https://www.cisa.gov/topics/industrial-control-systems
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Recommended Practices
https://www.cisa.gov/sites/default/files/recommended_practices/NCCIC_ICS-CERT_Defense_in_Depth_2016_S508C.pdf
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Recommended Practices
https://www.cisa.gov/sites/default/files/publications/Cybersecurity_Best_Practices_for_Industrial_Control_Systems.pdf
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Recommended Practices
https://www.cisa.gov/news-events/news/targeted-cyber-intrusion-detection-and-mitigation-strategies-update-b