CVE-2016-0778
The (1) roaming_read and (2) roaming_write functions in roaming_common.c in the client in OpenSSH 5.x, 6.x, and 7.x before 7.1p2, when certain proxy and forward options are enabled, do not properly maintain connection file descriptors, which allows…
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 20.9%, higher than 98% of all known CVEs. Patch or mitigate before the next change window.
Description
The (1) roaming_read and (2) roaming_write functions in roaming_common.c in the client in OpenSSH 5.x, 6.x, and 7.x before 7.1p2, when certain proxy and forward options are enabled, do not properly maintain connection file descriptors, which allows remote servers to cause a denial of service (heap-based buffer overflow) or possibly have unspecified other impact by requesting many forwardings.
- CVSS 3.1
- 8.1 HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 20.90% probability · 98th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-119
- Affected
- oracle/linux · oracle/solaris · openbsd/openssh · apple/mac os x · hp/virtual customer access system · sophos/unified threat management software
- Source
- secalert@redhat.com
EPSS moved from 22.0% on 21 September 2026 to 20.9% on 4 November 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.
References
- http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10734Third Party Advisory
- http://lists.apple.com/archives/security-announce/2016/Mar/msg00004.htmlMailing List, Release Notes, Third Party Advisory
- http://lists.fedoraproject.org/pipermail/package-announce/2016-February/176516.htmlMailing List, Third Party Advisory
- http://lists.fedoraproject.org/pipermail/package-announce/2016-January/176349.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00006.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00007.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00008.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00009.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00013.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00014.htmlMailing List, Third Party Advisory
- http://packetstormsecurity.com/files/135273/Qualys-Security-Advisory-OpenSSH-Overflow-Leak.htmlThird Party Advisory, VDB Entry
- http://seclists.org/fulldisclosure/2016/Jan/44Mailing List, Third Party Advisory
- http://www.debian.org/security/2016/dsa-3446Third Party Advisory
- http://www.openssh.com/txt/release-7.1p2Patch, Release Notes, Vendor Advisory
- http://www.openwall.com/lists/oss-security/2016/01/14/7Exploit, Mailing List, Technical Description, Third Party Advisory
- http://www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.htmlThird Party Advisory
- http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.htmlThird Party Advisory
- http://www.securityfocus.com/archive/1/537295/100/0/threadedThird Party Advisory, VDB Entry
- http://www.securityfocus.com/bid/80698Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1034671Third Party Advisory, VDB Entry
- http://www.ubuntu.com/usn/USN-2869-1Third Party Advisory
- https://blogs.sophos.com/2016/02/17/utm-up2date-9-354-released/Release Notes, Vendor Advisory
- https://blogs.sophos.com/2016/02/29/utm-up2date-9-319-released/Release Notes, Vendor Advisory
- https://bto.bluecoat.com/security-advisory/sa109Third Party Advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf
- https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05247375Third Party Advisory
- https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05356388Third Party Advisory
- https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05385680Third Party Advisory
- https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05390722Third Party Advisory
- https://security.gentoo.org/glsa/201601-01Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.