CVE-2016-2856
CVE-2016-2856
Esta página presenta datos de fuentes públicas de vulnerabilidades. Consulta el aviso original antes de actualizar.
pt_chown in the glibc package before 2.19-18+deb8u4 on Debian jessie; the elibc package before 2.15-0ubuntu10.14 on Ubuntu 12.04 LTS and before 2.19-0ubuntu6.8 on Ubuntu 14.04 LTS; and the glibc package before 2.21-0ubuntu4.2 on Ubuntu 15.10 and before 2.23-0ubuntu1 on Ubuntu 16.04 LTS and 16.10 lacks a namespace check associated with file-descriptor passing, which allows local users to capture keystrokes and spoof data, and possibly gain privileges, via pts read and write operations, related to debian/sysdeps/linux.mk. NOTE: this is not considered a vulnerability in the upstream GNU C Library because the upstream documentation has a clear security recommendation against the --enable-pt_chown option.
CVSS 8.4 · Alta · EPSS 1,0% · Código de explotación público · Corrección disponible
- Publicación
- Actualización
Pila tecnológica: system
Productos y versiones afectados
n/a
- Versiones
- n/a: Afectada
Sin corrección publicada
glibc Debian:12
- Intervalos de versiones afectados
- ECOSYSTEM: < 2.21-1
Actualiza a 2.21-1
glibc Debian:13
- Intervalos de versiones afectados
- ECOSYSTEM: < 2.21-1
Actualiza a 2.21-1
glibc Debian:14
- Intervalos de versiones afectados
- ECOSYSTEM: < 2.21-1
Actualiza a 2.21-1
eglibc Ubuntu:14.04:LTS
- Versiones
- 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
- Intervalos de versiones afectados
- ECOSYSTEM: < 2.19-0ubuntu6.8
Actualiza a 2.19-0ubuntu6.8
Fuentes originales
- http://www.halfdog.net/Security/2015/PtChownArbitraryPtsAccessViaUserNamespace/
- http://anonscm.debian.org/cgit/pkg-glibc/glibc.git/commit/?h=jessie&id=11475c083282c1582c4dd72eecfcb2b7d308c958
- http://www.openwall.com/lists/oss-security/2016/03/07/2
- http://www.securityfocus.com/bid/84601
- http://www.ubuntu.com/usn/USN-2985-2
- http://people.canonical.com/~ubuntu-security/cve/2016/CVE-2016-2856.html
- http://anonscm.debian.org/cgit/pkg-glibc/glibc.git/commit/?h=jessie&id=09f7764882a81e13e7b5d87d715412283a6ce403
- http://www.openwall.com/lists/oss-security/2016/02/23/3
- http://www.ubuntu.com/usn/USN-2985-1
- https://nvd.nist.gov/vuln/detail/CVE-2016-2856