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CVE-2016-3706

Status Candidate

Overview

Stack-based buffer overflow in the getaddrinfo function in sysdeps/posix/getaddrinfo.c in the GNU C Library (aka glibc or libc6) allows remote attackers to cause a denial of service (crash) via vectors involving hostent conversion. NOTE: this vulnerability exists because of an incomplete fix for CVE-2013-4458.

Related Files

Ubuntu Security Notice USN-3239-3
Posted Mar 24, 2017
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3239-3 - USN-3239-1 fixed vulnerabilities in the GNU C Library. Unfortunately, the fix for CVE-2016-3706 introduced a regression that in some circumstances prevented IPv6 addresses from resolving. This update reverts the change in Ubuntu 12.04 LTS.

tags | advisory, vulnerability
systems | linux, ubuntu
advisories | CVE-2015-8982, CVE-2015-8983, CVE-2015-8984, CVE-2016-1234, CVE-2016-3706, CVE-2016-4429, CVE-2016-5417, CVE-2016-6323
SHA-256 | 5ac6541ec2d8b1c23c092a5bf72c90784949c38ff1917bcec981e9c9d84897c2
Ubuntu Security Notice USN-3239-2
Posted Mar 22, 2017
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3239-2 - USN-3239-1 fixed vulnerabilities in the GNU C Library. Unfortunately, the fix for CVE-2015-5180 introduced an internal ABI change within the resolver library. This update reverts the change. Please note that long-running services that were restarted to compensate for the USN-3239-1 update may need to be restarted again. Various other issues were also addressed.

tags | advisory, vulnerability
systems | linux, ubuntu
advisories | CVE-2015-5180, CVE-2015-8982, CVE-2015-8983, CVE-2015-8984, CVE-2016-1234, CVE-2016-3706, CVE-2016-4429, CVE-2016-5417, CVE-2016-6323
SHA-256 | ff39913b27c4b2e011da5475a874c94850d6e1838b156178666e0c258fee9303
Ubuntu Security Notice USN-3239-1
Posted Mar 21, 2017
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3239-1 - It was discovered that the GNU C Library incorrectly handled the strxfrm function. An attacker could use this issue to cause a denial of service or possibly execute arbitrary code. This issue only affected Ubuntu 12.04 LTS and Ubuntu 14.04 LTS. It was discovered that an integer overflow existed in the _IO_wstr_overflow function of the GNU C Library. An attacker could use this to cause a denial of service or possibly execute arbitrary code. This issue only affected Ubuntu 12.04 LTS and Ubuntu 14.04 LTS. Various other issues were also addressed.

tags | advisory, denial of service, overflow, arbitrary
systems | linux, ubuntu
advisories | CVE-2015-5180, CVE-2015-8982, CVE-2015-8983, CVE-2015-8984, CVE-2016-1234, CVE-2016-3706, CVE-2016-4429, CVE-2016-5417, CVE-2016-6323
SHA-256 | a086af7e2dbc01251777d0699eb6cb41c5a2b8b291a0d8d90e74157971b520c5
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