Ubuntu Security Notice USN-5448-1

==========================================================================Ubuntu Security Notice USN-5448-1May 26, 2022ncurses vulnerabilities==========================================================================A security issue affects these releases of Ubuntu and its derivatives:- Ubuntu 16.04 ESM- Ubuntu 14.04 ESMSummary:Several security issues were fixed in ncurses.Software Description:- ncurses: shared libraries for terminal handling (32-bit)Details:It was discovered that ncurses was not properly checking array boundswhen executing the fmt_entry function, which could result in anout-of-bounds write. An attacker could possibly use this issue toexecute arbitrary code. (CVE-2017-10684)It was discovered that ncurses was not properly checking user input,which could result in it being treated as a format argument. Anattacker could possibly use this issue to expose sensitiveinformation or to execute arbitrary code. (CVE-2017-10685)It was discovered that ncurses was incorrectly performing memorymanagement operations and was not blocking access attempts toillegal memory locations. An attacker could possibly use this issueto cause a denial of service. (CVE-2017-11112, CVE-2017-13729,CVE-2017-13730, CVE-2017-13731, CVE-2017-13732, CVE-2017-13733,CVE-2017-13734)It was discovered that ncurses was not properly performing checkson pointer values before attempting to access the related memorylocations, which could lead to NULL pointer dereferencing. Anattacker could possibly use this issue to cause a denial of service.(CVE-2017-11113)It was discovered that ncurses was incorrectly handling loops inlibtic, which could lead to the execution of an infinite loop. Anattacker could possibly use this issue to cause a denial of service.(CVE-2017-13728)Update instructions:The problem can be corrected by updating your system to the followingpackage versions:Ubuntu 16.04 ESM:   lib32ncurses5                   6.0+20160213-1ubuntu1+esm1   lib32ncursesw5                  6.0+20160213-1ubuntu1+esm1   lib32tinfo5                     6.0+20160213-1ubuntu1+esm1   lib64ncurses5                   6.0+20160213-1ubuntu1+esm1   lib64tinfo5                     6.0+20160213-1ubuntu1+esm1   libncurses5                     6.0+20160213-1ubuntu1+esm1   libncursesw5                    6.0+20160213-1ubuntu1+esm1   libtinfo5                       6.0+20160213-1ubuntu1+esm1   libx32ncurses5                  6.0+20160213-1ubuntu1+esm1   libx32ncursesw5                 6.0+20160213-1ubuntu1+esm1   libx32tinfo5                    6.0+20160213-1ubuntu1+esm1   ncurses-base                    6.0+20160213-1ubuntu1+esm1   ncurses-bin                     6.0+20160213-1ubuntu1+esm1   ncurses-term                    6.0+20160213-1ubuntu1+esm1Ubuntu 14.04 ESM:   lib32ncurses5                   5.9+20140118-1ubuntu1+esm1   lib32ncursesw5                  5.9+20140118-1ubuntu1+esm1   lib32tinfo5                     5.9+20140118-1ubuntu1+esm1   lib64ncurses5                   5.9+20140118-1ubuntu1+esm1   lib64tinfo5                     5.9+20140118-1ubuntu1+esm1   libncurses5                     5.9+20140118-1ubuntu1+esm1   libncursesw5                    5.9+20140118-1ubuntu1+esm1   libtinfo5                       5.9+20140118-1ubuntu1+esm1   libx32ncurses5                  5.9+20140118-1ubuntu1+esm1   libx32ncursesw5                 5.9+20140118-1ubuntu1+esm1   libx32tinfo5                    5.9+20140118-1ubuntu1+esm1   ncurses-base                    5.9+20140118-1ubuntu1+esm1   ncurses-bin                     5.9+20140118-1ubuntu1+esm1   ncurses-term                    5.9+20140118-1ubuntu1+esm1In general, a standard system update will make all the necessary changes.References:   https://ubuntu.com/security/notices/USN-5448-1   CVE-2017-10684, CVE-2017-10685, CVE-2017-11112, CVE-2017-11113,   CVE-2017-13728, CVE-2017-13729, CVE-2017-13730, CVE-2017-13731,   CVE-2017-13732, CVE-2017-13733, CVE-2017-13734