High severity7.5NVD Advisory· Published Aug 7, 2016· Updated Jun 17, 2026
CVE-2016-6515
CVE-2016-6515
Description
The auth_password function in auth-passwd.c in sshd in OpenSSH before 7.3 does not limit password lengths for password authentication, which allows remote attackers to cause a denial of service (crypt CPU consumption) via a long string.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
29- osv-coords28 versionspkg:rpm/opensuse/openssh&distro=openSUSE%20Tumbleweedpkg:rpm/suse/openssh-askpass-gnome&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP1pkg:rpm/suse/openssh-askpass-gnome&distro=SUSE%20Linux%20Enterprise%20Point%20of%20Sale%2011%20SP3pkg:rpm/suse/openssh-askpass-gnome&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP3-LTSSpkg:rpm/suse/openssh-askpass-gnome&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP3-TERADATApkg:rpm/suse/openssh-askpass-gnome&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4pkg:rpm/suse/openssh-askpass-gnome&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP1pkg:rpm/suse/openssh-askpass-gnome&distro=SUSE%20Linux%20Enterprise%20Server%2012-LTSSpkg:rpm/suse/openssh-askpass-gnome&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2011%20SP4pkg:rpm/suse/openssh-askpass-gnome&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012pkg:rpm/suse/openssh-askpass-gnome&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP1pkg:rpm/suse/openssh-askpass-gnome&distro=SUSE%20Manager%202.1pkg:rpm/suse/openssh-askpass-gnome&distro=SUSE%20Manager%20Proxy%202.1pkg:rpm/suse/openssh-askpass-gnome&distro=SUSE%20OpenStack%20Cloud%205pkg:rpm/suse/openssh&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP1pkg:rpm/suse/openssh&distro=SUSE%20Linux%20Enterprise%20Point%20of%20Sale%2011%20SP3pkg:rpm/suse/openssh&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP3-LTSSpkg:rpm/suse/openssh&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP3-TERADATApkg:rpm/suse/openssh&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4pkg:rpm/suse/openssh&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP1pkg:rpm/suse/openssh&distro=SUSE%20Linux%20Enterprise%20Server%2012-LTSSpkg:rpm/suse/openssh&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2011%20SP4pkg:rpm/suse/openssh&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012pkg:rpm/suse/openssh&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP1pkg:rpm/suse/openssh&distro=SUSE%20Manager%202.1pkg:rpm/suse/openssh&distro=SUSE%20Manager%20Proxy%202.1pkg:rpm/suse/openssh&distro=SUSE%20OpenStack%20Cloud%205pkg:rpm/suse/openssh-openssl1&distro=SUSE%20Linux%20Enterprise%20Server%2011-SECURITY
< 7.2p2-3.1+ 27 more
- (no CPE)range: < 7.2p2-3.1
- (no CPE)range: < 6.6p1-52.1
- (no CPE)range: < 6.2p2-0.33.5
- (no CPE)range: < 6.2p2-0.33.5
- (no CPE)range: < 6.2p2-0.33.5
- (no CPE)range: < 6.6p1-28.2
- (no CPE)range: < 6.6p1-52.1
- (no CPE)range: < 6.6p1-52.1
- (no CPE)range: < 6.6p1-28.2
- (no CPE)range: < 6.6p1-52.1
- (no CPE)range: < 6.6p1-52.1
- (no CPE)range: < 6.2p2-0.33.5
- (no CPE)range: < 6.2p2-0.33.5
- (no CPE)range: < 6.2p2-0.33.5
- (no CPE)range: < 6.6p1-52.1
- (no CPE)range: < 6.2p2-0.33.2
- (no CPE)range: < 6.2p2-0.33.2
- (no CPE)range: < 6.2p2-0.33.2
- (no CPE)range: < 6.6p1-28.1
- (no CPE)range: < 6.6p1-52.1
- (no CPE)range: < 6.6p1-52.1
- (no CPE)range: < 6.6p1-28.1
- (no CPE)range: < 6.6p1-52.1
- (no CPE)range: < 6.6p1-52.1
- (no CPE)range: < 6.2p2-0.33.2
- (no CPE)range: < 6.2p2-0.33.2
- (no CPE)range: < 6.2p2-0.33.2
- (no CPE)range: < 6.6p1-15.1
Patches
Vulnerability mechanics
References
15- github.com/openssh/openssh-portable/commit/fcd135c9df440bcd2d5870405ad3311743d78d97nvdIssue TrackingPatch
- openwall.com/lists/oss-security/2016/08/01/2nvdThird Party AdvisoryVDB Entry
- packetstormsecurity.com/files/140070/OpenSSH-7.2-Denial-Of-Service.htmlnvd
- www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.htmlnvd
- www.securityfocus.com/bid/92212nvd
- www.securitytracker.com/id/1036487nvd
- access.redhat.com/errata/RHSA-2017:2029nvd
- cert-portal.siemens.com/productcert/pdf/ssa-412672.pdfnvd
- cert-portal.siemens.com/productcert/pdf/ssa-676336.pdfnvd
- lists.debian.org/debian-lts-announce/2018/09/msg00010.htmlnvd
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/X2L6RW34VFNXYNVVN2CN73YAGJ5VMTFU/nvd
- security.freebsd.org/advisories/FreeBSD-SA-17:06.openssh.ascnvd
- security.netapp.com/advisory/ntap-20171130-0003/nvd
- support.hpe.com/hpsc/doc/public/displaynvd
- www.exploit-db.com/exploits/40888/nvd
News mentions
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