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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2022.2596 USN-5448-1: ncurses vulnerabilities 27 May 2022 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: ncurses Publisher: Ubuntu Operating System: Ubuntu Resolution: Patch/Upgrade CVE Names: CVE-2017-13734 CVE-2017-13733 CVE-2017-13732 CVE-2017-13731 CVE-2017-13730 CVE-2017-13729 CVE-2017-13728 CVE-2017-11113 CVE-2017-11112 CVE-2017-10685 CVE-2017-10684 Original Bulletin: https://ubuntu.com/security/notices/USN-5448-1 Comment: CVSS (Max): 9.8 CVE-2017-10685 (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H) CVSS Source: NVD Calculator: https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - --------------------------BEGIN INCLUDED TEXT-------------------- USN-5448-1: ncurses vulnerabilities 26 May 2022 Several security issues were fixed in ncurses. Releases o Ubuntu 16.04 ESM o Ubuntu 14.04 ESM Packages o ncurses - shared libraries for terminal handling (32-bit) Details It was discovered that ncurses was not properly checking array bounds when executing the fmt_entry function, which could result in an out-of-bounds write. An attacker could possibly use this issue to execute 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. An attacker could possibly use this issue to expose sensitive information or to execute arbitrary code. ( CVE-2017-10685 ) It was discovered that ncurses was incorrectly performing memory management operations and was not blocking access attempts to illegal memory locations. An attacker could possibly use this issue to 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 checks on pointer values before attempting to access the related memory locations, which could lead to NULL pointer dereferencing. An attacker could possibly use this issue to cause a denial of service. ( CVE-2017-11113 ) It was discovered that ncurses was incorrectly handling loops in libtic, which could lead to the execution of an infinite loop. An attacker 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 following package versions: Ubuntu 16.04 o libx32ncurses5 - 6.0+20160213-1ubuntu1+esm1 Available with UA Infra or UA Desktop o lib32ncursesw5 - 6.0+20160213-1ubuntu1+esm1 Available with UA Infra or UA Desktop o lib32tinfo5 - 6.0+20160213-1ubuntu1+esm1 Available with UA Infra or UA Desktop o libtinfo5 - 6.0+20160213-1ubuntu1+esm1 Available with UA Infra or UA Desktop o lib64tinfo5 - 6.0+20160213-1ubuntu1+esm1 Available with UA Infra or UA Desktop o lib32ncurses5 - 6.0+20160213-1ubuntu1+esm1 Available with UA Infra or UA Desktop o ncurses-bin - 6.0+20160213-1ubuntu1+esm1 Available with UA Infra or UA Desktop o lib64ncurses5 - 6.0+20160213-1ubuntu1+esm1 Available with UA Infra or UA Desktop o libncurses5 - 6.0+20160213-1ubuntu1+esm1 Available with UA Infra or UA Desktop o libncursesw5 - 6.0+20160213-1ubuntu1+esm1 Available with UA Infra or UA Desktop o ncurses-base - 6.0+20160213-1ubuntu1+esm1 Available with UA Infra or UA Desktop o libx32ncursesw5 - 6.0+20160213-1ubuntu1+esm1 Available with UA Infra or UA Desktop o libx32tinfo5 - 6.0+20160213-1ubuntu1+esm1 Available with UA Infra or UA Desktop o ncurses-term - 6.0+20160213-1ubuntu1+esm1 Available with UA Infra or UA Desktop Ubuntu 14.04 o libx32ncurses5 - 5.9+20140118-1ubuntu1+esm1 Available with UA Infra or UA Desktop o lib32ncursesw5 - 5.9+20140118-1ubuntu1+esm1 Available with UA Infra or UA Desktop o lib32tinfo5 - 5.9+20140118-1ubuntu1+esm1 Available with UA Infra or UA Desktop o libtinfo5 - 5.9+20140118-1ubuntu1+esm1 Available with UA Infra or UA Desktop o lib64tinfo5 - 5.9+20140118-1ubuntu1+esm1 Available with UA Infra or UA Desktop o lib32ncurses5 - 5.9+20140118-1ubuntu1+esm1 Available with UA Infra or UA Desktop o ncurses-bin - 5.9+20140118-1ubuntu1+esm1 Available with UA Infra or UA Desktop o lib64ncurses5 - 5.9+20140118-1ubuntu1+esm1 Available with UA Infra or UA Desktop o libncurses5 - 5.9+20140118-1ubuntu1+esm1 Available with UA Infra or UA Desktop o libncursesw5 - 5.9+20140118-1ubuntu1+esm1 Available with UA Infra or UA Desktop o ncurses-base - 5.9+20140118-1ubuntu1+esm1 Available with UA Infra or UA Desktop o libx32ncursesw5 - 5.9+20140118-1ubuntu1+esm1 Available with UA Infra or UA Desktop o libx32tinfo5 - 5.9+20140118-1ubuntu1+esm1 Available with UA Infra or UA Desktop o ncurses-term - 5.9+20140118-1ubuntu1+esm1 Available with UA Infra or UA Desktop In general, a standard system update will make all the necessary changes. References o CVE-2017-13729 o CVE-2017-13731 o CVE-2017-11113 o CVE-2017-13732 o CVE-2017-11112 o CVE-2017-13733 o CVE-2017-13730 o CVE-2017-10685 o CVE-2017-10684 o CVE-2017-13734 o CVE-2017-13728 - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. 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