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Debian 10 Buster: DLA-3205-1 Moderate: Inetutils Buffer Oversight

Several security vulnerabilities were discovered in inetutils, a collection of common network programs. CVE-2019-0053 . ------------------------------------------------------------------------- Debian LTS Advisory DLA-3205-1 This email address is being protected from spambots. You need JavaScript enabled to view it. https://www.debian.org/lts/security/ Guilhem Moulin November 25, 2022 https://wiki.debian.org/LTS ------------------------------------------------------------------------- Package : inetutils Version : 2:1.9.4-7+deb10u2 CVE ID : CVE-2019-0053 CVE-2021-40491 CVE-2022-39028 Debian Bug : 945861 956084 993476 Several security vulnerabilities were discovered in inetutils, a collection of common network programs. CVE-2019-0053 inetutils' telnet client doesn't sufficiently validate environment variables, which can lead to stack-based buffer overflows. This issue is limited to local exploitation from restricted shells. CVE-2021-40491 inetutils' ftp client before 2.2 does not validate addresses returned by PSV/LSPV responses to make sure they match the server address. A malicious server can exploit this flaw to reach services in the client's private network. (This is similar to curl's CVE-2020-8284.) CVE-2022-39028 inetutils's telnet server through 2.3 has a NULL pointer dereference which a client can trigger by sending 0xff 0xf7 or 0xff 0xf8. In a typical installation, the telnetd application would crash but the telnet service would remain available through inetd. However, if the telnetd application has many crashes within a short time interval, the telnet service would become unavailable after inetd logs a "telnet/tcp server failing (looping), service terminated" error. For Debian 10 buster, these problems have been fixed in version 2:1.9.4-7+deb10u2. We recommend that you upgrade your inetutils packages. For the detailed security status of inetutils please refer to its security tracker pageat: https://security-tracker.debian.org/tracker/source-package/inetutils 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 . The Debian Long Term Support Advisory DLA-3205-1 identifies several security vulnerabilities in inetutils. It is advisable to upgrade promptly to maintain system integrity.. Debian LTS, inetutils, security update, buffer overflow, network program. . LinuxSecurity.com Team

Nov 25, 2022 Debian LTS