Buffer overflow in Apple Mac OS X
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 remote servers to cause a denial of service (heap-based buffer overflow) or possibly have unspecified other impact by requesting many forwardings.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.209 (97.6th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 98th percentile — 97.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.209 · newest: 0.209 · change: 0.000
Affected products
- Apple Mac OS X
- HP Virtual Customer Access System
- OpenBSD OpenSSH — versions 5.4, 5.5, 5.6
- Oracle Linux — versions 7
- Oracle Solaris — versions 11.3
- Sophos Unified Threat Management Software — versions 9.353
Weakness classification (CWE)
Public proof-of-concept exploits
References
- blogs.sophos.com/2016/02/17/utm-up2date-9-354-released/ (Release Notes, Vendor Advisory)
- lists.opensuse.org/opensuse-security-announce/2016-01/msg00006.html (vendor-advisory, Mailing List, Third Party Advisory)
- blogs.sophos.com/2016/02/29/utm-up2date-9-319-released/ (Release Notes, Vendor Advisory)
- lists.apple.com/archives/security-announce/2016/Mar/msg00004.html (vendor-advisory, Mailing List, Third Party Advisory, Release Notes)
- h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay (Third Party Advisory)
- www.securityfocus.com/archive/1/537295/100/0/threaded (mailing-list, VDB Entry, Third Party Advisory)
- support.apple.com/HT206167 (Vendor Advisory)
- lists.fedoraproject.org/pipermail/package-announce/2016-January/176349.html (vendor-advisory, Mailing List, Third Party Advisory)
- kb.juniper.net/InfoCenter/index (Third Party Advisory)
- h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay (Third Party Advisory)
Frequently asked questions
- What is CVE-2016-0778?
- CVE-2016-0778 is a high-severity vulnerability in Apple Mac OS X, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 8.1/10. Published 2016-01-14.
- How severe is CVE-2016-0778?
- High severity. CVSS v3 base score is 8.1 out of 10.
- Is CVE-2016-0778 known to be exploited?
- 22 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.