Stay Secure with the Latest Linux Advisories

security advisorybindupgrade

Slackware: 2020-140-01 Moderate: Bind Reflection Attack Fix

New bind packages are available for Slackware 14.0, 14.1, 14.2, and -current to fix security issues. . -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 [slackware-security] bind (SSA:2020-140-01) New bind packages are available for Slackware 14.0, 14.1, 14.2, and -current to fix security issues. Here are the details from the Slackware 14.2 ChangeLog: +--------------------------+ patches/packages/bind-9.11.19-i586-1_slack14.2.txz: Upgraded. This update fixes security issues: A malicious actor who intentionally exploits the lack of effective limitation on the number of fetches performed when processing referrals can, through the use of specially crafted referrals, cause a recursing server to issue a very large number of fetches in an attempt to process the referral. This has at least two potential effects: The performance of the recursing server can potentially be degraded by the additional work required to perform these fetches, and the attacker can exploit this behavior to use the recursing server as a reflector in a reflection attack with a high amplification factor. Replaying a TSIG BADTIME response as a request could trigger an assertion failure. For more information, see: https://kb.isc.org/docs/cve-2020-8616 https://www.cve.org/CVERecord?id=CVE-2020-8616 https://kb.isc.org/docs/cve-2020-8617 https://www.cve.org/CVERecord?id=CVE-2020-8617 (* Security fix *) +--------------------------+ Where to find the new packages: +-----------------------------+ Thanks to the friendly folks at the OSU Open Source Lab (https://osuosl.org/) for donating FTP and rsync hosting to the Slackware project! :-) Also see the "Get Slack" section on http://www.slackware.com/ for additional mirror sites near you. Updated package for Slackware 14.0: Updated package for Slackware x86_64 14.0: Updated package for Slackware 14.1: Updated package for Slackware x86_64 14.1: Updated package for Slackware 14.2: Updated package for Slackware x86_64 14.2: Updated package forSlackware -current: Updated package for Slackware x86_64 -current: MD5 signatures: +-------------+ Slackware 14.0 package: 8a8be89119053b4cf308e94c39b0441f bind-9.11.19-i486-1_slack14.0.txz Slackware x86_64 14.0 package: c1ff5217ff073769862204f708bfc969 bind-9.11.19-x86_64-1_slack14.0.txz Slackware 14.1 package: 08b6ff961e66d98a4a3cab7dc6485c83 bind-9.11.19-i486-1_slack14.1.txz Slackware x86_64 14.1 package: 28421755e2c614bbfba77ad5d19ed95a bind-9.11.19-x86_64-1_slack14.1.txz Slackware 14.2 package: 3def6c8b8115e1b5eb199281dd7bd6c7 bind-9.11.19-i586-1_slack14.2.txz Slackware x86_64 14.2 package: 1533854201484c39c4d6d13a0b0ac246 bind-9.11.19-x86_64-1_slack14.2.txz Slackware -current package: 1d0111759a7622d5341a3acb620d42a8 n/bind-9.16.3-i586-1.txz Slackware x86_64 -current package: f22d2d2b35b461bca96df936a65fc4dc n/bind-9.16.3-x86_64-1.txz Installation instructions: +------------------------+ Upgrade the package as root: # upgradepkg bind-9.11.19-i586-1_slack14.2.txz Then, restart the name server: # /etc/rc.d/rc.bind restart +-----+ . Recent bind updates resolve essential security vulnerabilities in Slackware versions. Update promptly to improve your defense today.. bind security, Slackware update, performance issues, security fixes, system upgrade. . LinuxSecurity.com Team

May 19, 2020 Slackware