{"id":"USN-3239-2","aliases":[],"status":"published","title":"eglibc, glibc regression","description":"USN-3239-1 fixed vulnerabilities in the GNU C Library. Unfortunately,\nthe fix for CVE-2015-5180 introduced an internal ABI change within\nthe resolver library. This update reverts the change. We apologize\nfor the inconvenience.\n\nPlease note that long-running services that were restarted to compensate\nfor the USN-3239-1 update may need to be restarted again.\n\nOriginal advisory details:\n\n It was discovered that the GNU C Library incorrectly handled the\n strxfrm() function. An attacker could use this issue to cause a denial\n of service or possibly execute arbitrary code. This issue only affected\n Ubuntu 12.04 LTS and Ubuntu 14.04 LTS. (CVE-2015-8982)\n \n It was discovered that an integer overflow existed in the\n _IO_wstr_overflow() function of the GNU C Library. An attacker could\n use this to cause a denial of service or possibly execute arbitrary\n code. This issue only affected Ubuntu 12.04 LTS and Ubuntu 14.04\n LTS. (CVE-2015-8983)\n \n It was discovered that the fnmatch() function in the GNU C Library\n did not properly handle certain malformed patterns. An attacker could\n use this to cause a denial of service. This issue only affected Ubuntu\n 12.04 LTS and Ubuntu 14.04 LTS. (CVE-2015-8984)\n \n Alexander Cherepanov discovered a stack-based buffer overflow in the\n glob implementation of the GNU C Library. An attacker could use this\n to specially craft a directory layout and cause a denial of service.\n (CVE-2016-1234)\n \n Florian Weimer discovered a NULL pointer dereference in the DNS\n resolver of the GNU C Library. An attacker could use this to cause\n a denial of service. (CVE-2015-5180)\n \n Michael Petlan discovered an unbounded stack allocation in the\n getaddrinfo() function of the GNU C Library. An attacker could use\n this to cause a denial of service. (CVE-2016-3706)\n \n Aldy Hernandez discovered an unbounded stack allocation in the sunrpc\n implementation in the GNU C Library. An attacker could use this to\n cause a denial of service. (CVE-2016-4429)\n \n Tim Ruehsen discovered that the getaddrinfo() implementation in the\n GNU C Library did not properly track memory allocations. An attacker\n could use this to cause a denial of service. This issue only affected\n Ubuntu 16.04 LTS. (CVE-2016-5417)\n \n Andreas Schwab discovered that the GNU C Library on ARM 32-bit\n platforms did not properly set up execution contexts. An attacker\n could use this to cause a denial of service. (CVE-2016-6323)","facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"published":"2017-03-21T23:34:40Z","modified":"2026-04-22T09:33:13Z","fixes":[{"ecosystem":"Ubuntu:14.04:LTS","package":"eglibc","fixed_in":["2.19-0ubuntu6.11"],"sources":["osv"]},{"ecosystem":"Ubuntu:16.04:LTS","package":"glibc","fixed_in":["2.23-0ubuntu7"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Ubuntu:14.04:LTS","package":"eglibc","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.19-0ubuntu6.11"}]}],"versions":["2.17-93ubuntu4","2.18-0ubuntu1","2.18-0ubuntu2","2.18-0ubuntu4","2.18-0ubuntu5","2.18-0ubuntu6","2.18-0ubuntu7","2.19-0ubuntu2","2.19-0ubuntu3","2.19-0ubuntu4","2.19-0ubuntu5","2.19-0ubuntu6","2.19-0ubuntu6.1","2.19-0ubuntu6.3","2.19-0ubuntu6.4","2.19-0ubuntu6.5","2.19-0ubuntu6.6","2.19-0ubuntu6.7","2.19-0ubuntu6.8","2.19-0ubuntu6.9","2.19-0ubuntu6.10"]},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"glibc","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.23-0ubuntu7"}]}],"versions":["2.21-0ubuntu4","2.21-0ubuntu5","2.21-0ubuntu6","2.23-0ubuntu1","2.23-0ubuntu2","2.23-0ubuntu3","2.23-0ubuntu4","2.23-0ubuntu5","2.23-0ubuntu6"]}],"references":[{"url":"https://ubuntu.com/security/notices/USN-3239-2","tags":["advisory"]},{"url":"https://bugs.launchpad.net/bugs/1674532","tags":["report"]}],"sources":{"osv":[{"id":"USN-3239-2","title":"eglibc, glibc regression","description":"USN-3239-1 fixed vulnerabilities in the GNU C Library. Unfortunately,\nthe fix for CVE-2015-5180 introduced an internal ABI change within\nthe resolver library. This update reverts the change. We apologize\nfor the inconvenience.\n\nPlease note that long-running services that were restarted to compensate\nfor the USN-3239-1 update may need to be restarted again.\n\nOriginal advisory details:\n\n It was discovered that the GNU C Library incorrectly handled the\n strxfrm() function. An attacker could use this issue to cause a denial\n of service or possibly execute arbitrary code. This issue only affected\n Ubuntu 12.04 LTS and Ubuntu 14.04 LTS. (CVE-2015-8982)\n \n It was discovered that an integer overflow existed in the\n _IO_wstr_overflow() function of the GNU C Library. An attacker could\n use this to cause a denial of service or possibly execute arbitrary\n code. This issue only affected Ubuntu 12.04 LTS and Ubuntu 14.04\n LTS. (CVE-2015-8983)\n \n It was discovered that the fnmatch() function in the GNU C Library\n did not properly handle certain malformed patterns. An attacker could\n use this to cause a denial of service. This issue only affected Ubuntu\n 12.04 LTS and Ubuntu 14.04 LTS. (CVE-2015-8984)\n \n Alexander Cherepanov discovered a stack-based buffer overflow in the\n glob implementation of the GNU C Library. An attacker could use this\n to specially craft a directory layout and cause a denial of service.\n (CVE-2016-1234)\n \n Florian Weimer discovered a NULL pointer dereference in the DNS\n resolver of the GNU C Library. An attacker could use this to cause\n a denial of service. (CVE-2015-5180)\n \n Michael Petlan discovered an unbounded stack allocation in the\n getaddrinfo() function of the GNU C Library. An attacker could use\n this to cause a denial of service. (CVE-2016-3706)\n \n Aldy Hernandez discovered an unbounded stack allocation in the sunrpc\n implementation in the GNU C Library. An attacker could use this to\n cause a denial of service. (CVE-2016-4429)\n \n Tim Ruehsen discovered that the getaddrinfo() implementation in the\n GNU C Library did not properly track memory allocations. An attacker\n could use this to cause a denial of service. This issue only affected\n Ubuntu 16.04 LTS. (CVE-2016-5417)\n \n Andreas Schwab discovered that the GNU C Library on ARM 32-bit\n platforms did not properly set up execution contexts. An attacker\n could use this to cause a denial of service. (CVE-2016-6323)\n","status":"published","published":"2017-03-21T23:34:40Z","modified":"2026-04-22T09:33:13.922615Z","updated_at":"2026-11-02T16:58:10.303275Z"}]}}