Out-of-bounds Read in Libevent Project
CVE-2016-10195
The name_parse function in evdns.c in libevent before 2.1.6-beta allows remote attackers to have unspecified impact via vectors involving the label_len variable, which triggers an out-of-bounds stack read.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.067 (93.7th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 94th percentile — 93.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.067 · newest: 0.067 · change: 0.000
Affected products
- Libevent Project
- Debian Linux — versions 8.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.securityfocus.com/bid/96014 (VDB Entry, Third Party Advisory, vdb-entry)
- access.redhat.com/errata/RHSA-2017:1106 (vendor-advisory, Third Party Advisory)
- www.debian.org/security/2017/dsa-3789 (vendor-advisory, Third Party Advisory)
- www.openwall.com/lists/oss-security/2017/02/02/7 (mailing-list, Patch, Mailing List, Third Party Advisory)
- security.gentoo.org/glsa/201705-01 (vendor-advisory, Third Party Advisory)
- github.com/libevent/libevent/issues/317 (Exploit, Patch, Third Party Advisory, Issue Tracking)
- www.openwall.com/lists/oss-security/2017/01/31/17 (mailing-list, Patch, Mailing List, Third Party Advisory)
- www.securitytracker.com/id/1038320 (VDB Entry, Third Party Advisory, vdb-entry, Broken Link)
- github.com/libevent/libevent/blob/release-2.1.6-beta/ChangeLog (Third Party Advisory, Release Notes)
- access.redhat.com/errata/RHSA-2017:1104 (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2016-10195?
- CVE-2016-10195 is a critical-severity vulnerability in Libevent Project, classified under Out-of-bounds Read. CVSS score: 9.8/10. Published 2017-03-15.
- How severe is CVE-2016-10195?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2016-10195 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.