Daily Archives: August 1, 2024

Advisories

USN-6922-2: Linux kernel vulnerabilities

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It was discovered that a race condition existed in the Bluetooth subsystem
in the Linux kernel when modifying certain settings values through debugfs.
A privileged local attacker could use this to cause a denial of service.
(CVE-2024-24857, CVE-2024-24858, CVE-2024-24859)

Chenyuan Yang discovered that the Unsorted Block Images (UBI) flash device
volume management subsystem did not properly validate logical eraseblock
sizes in certain situations. An attacker could possibly use this to cause a
denial of service (system crash). (CVE-2024-25739)

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Advisories

USN-6941-1: Python vulnerability

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It was discovered that the Python ipaddress module contained incorrect
information about which IP address ranges were considered “private” or
“globally reachable”. This could possibly result in applications applying
incorrect security policies.

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News

Education in Secure Software Development

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The Linux Foundation and OpenSSF released a report on the state of education in secure software development.

…many developers lack the essential knowledge and skills to effectively implement secure software development. Survey findings outlined in the report show nearly one-third of all professionals directly involved in development and deployment ­ system operations, software developers, committers, and maintainers ­ self-report feeling unfamiliar with secure software development practices. This is of particular concern as they are the ones at the forefront of creating and maintaining the code that runs a company’s applications and systems.

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Advisories

bind-9.18.28-2.fc39 bind-dyndb-ldap-11.10-26.fc39

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FEDORA-2024-ef8a7031e7

Packages in this update:

bind-9.18.28-2.fc39
bind-dyndb-ldap-11.10-26.fc39

Update description:

Update to BIND 9.18.28

Security Fixes

A malicious DNS client that sent many queries over TCP but never read the responses could cause a server to respond slowly or not at all for other clients. This has been fixed. (CVE-2024-0760) [GL #4481]

It is possible to craft excessively large resource records sets, which have the effect of slowing down database processing. This has been addressed by adding a configurable limit to the number of records that can be stored per name and type in a cache or zone database. The default is 100, which can be tuned with the new max-records-per-type option. [GL #497] [GL #3405]

It is possible to craft excessively large numbers of resource record types for a given owner name, which has the effect of slowing down database processing. This has been addressed by adding a configurable limit to the number of records that can be stored per name and type in a cache or zone database. The default is 100, which can be tuned with the new max-types-per-name option. (CVE-2024-1737) [GL #3403]

ISC would like to thank Toshifumi Sakaguchi who independently discovered and responsibly reported the issue to ISC. [GL #4548]

Validating DNS messages signed using the SIG(0) protocol (RFC 2931) could cause excessive CPU load, leading to a denial-of-service condition. Support for SIG(0) message validation was removed from this version of named. (CVE-2024-1975) [GL #4480]

Due to a logic error, lookups that triggered serving stale data and required lookups in local authoritative zone data could have resulted in an assertion failure. This has been fixed. (CVE-2024-4076) [GL #4507]

Potential data races were found in our DoH implementation, related to HTTP/2 session object management and endpoints set object management after reconfiguration. These issues have been fixed. [GL #4473]

ISC would like to thank Dzintars and Ivo from nic.lv for bringing this to our attention.

When looking up the NS records of parent zones as part of looking up DS records, it was possible for named to trigger an assertion failure if serve-stale was enabled. This has been fixed. [GL #4661]

https://downloads.isc.org/isc/bind9/9.18.28/doc/arm/html/notes.html

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