------------------------------------------------------------------------- Debian LTS Advisory DLA-4365-2 debian-lts@lists.debian.org https://www.debian.org/lts/security/ Guilhem Moulin November 30, 2025 https://wiki.debian.org/LTS ------------------------------------------------------------------------- Package : unbound Version : 1.13.1-1+deb11u7 CVE ID : CVE-2025-11411 Debian Bug : 1121446 Yuxiao Wu, Yunyi Zhang, Baojun Liu and Haixin Duan discovered that the initial fix for CVE-2025-11411 as applied in DLA 4365-1 did not fully fix the vulnerability. Updated packages correcting this issue are now available. Additionally, this update includes a fix for potential amplification DDoS attacks due to improperly following cleared RD flags. For Debian 11 bullseye, this problem has been fixed in version 1.13.1-1+deb11u7. We recommend that you upgrade your unbound packages. For the detailed security status of unbound please refer to its security tracker page at: https://security-tracker.debian.org/tracker/unbound Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS
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