7

CVE-2015-6564

Use-after-free vulnerability in the mm_answer_pam_free_ctx function in monitor.c in sshd in OpenSSH before 7.0 on non-OpenBSD platforms might allow local users to gain privileges by leveraging control of the sshd uid to send an unexpectedly early MONITOR_REQ_PAM_FREE_CTX request.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Openbsd ≫ Openssh Version <= 6.9
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.6% 0.442
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 6.9 3.4 10
AV:L/AC:M/Au:N/C:C/I:C/A:C
134c704f-9b21-4f2e-91b3-4a467353bcc0 7 1 5.9
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-416 Use After Free

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf
http://www.oracle.com/technetwork/topics/security/bulletinjan2016-2867206.html
http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html
http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html
http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00017.html
http://rhn.redhat.com/errata/RHSA-2016-0741.html
https://lists.debian.org/debian-lts-announce/2018/09/msg00010.html
https://security.gentoo.org/glsa/201512-04
http://lists.fedoraproject.org/pipermail/package-announce/2015-August/165170.html
https://kc.mcafee.com/corporate/index?page=content&id=SB10136
http://seclists.org/fulldisclosure/2015/Aug/54
http://www.openssh.com/txt/release-7.0
Vendor Advisory
http://www.openwall.com/lists/oss-security/2015/08/22/1
http://www.securityfocus.com/bid/76317
https://github.com/openssh/openssh-portable/commit/5e75f5198769056089fb06c4d738ab0e5abc66f7
https://www.broadcom.com/support/fibre-channel-networking/security-advisories/brocade-security-advisory-2019-764