CVE-2016-10197: debian debian_linux Out-of-bounds Read
CVSS: 7.5v3.1HighModified
AliasesALPINE-CVE-2016-10197UBUNTU-CVE-2016-10197DEBIAN-CVE-2016-10197
Published 15-03-2017Last modified 06-08-2024
Vulnerability summary
CVE-2016-10197 is a high (CVSS 7.5) Out-of-bounds Read vulnerability in debian debian_linux. EPSS estimates a 5.19% chance of exploitation in the next 30 days, higher than 92.3% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
7.5/10
010
High · v3.1 (NVD)EPSS score
5.19%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github
Advisory lineage
Upstream 0 · Downstream 10 · Related 4Timeline
- 15-03-2017PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
Description
The search_make_new function in evdns.c in libevent before 2.1.6-beta allows attackers to cause a denial of service (out-of-bounds read) via an empty hostname.
CVSS metrics
6 scores · 4 sources · 3 versionsHigh 7.5Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HSourcesAll 4 agree
- OSV · AlpineEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · UbuntuEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
High 7.5Preferred score · OSV · Ubuntu (Ecosystem advisory) · calculated from vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HSourcesSingle source
Medium 5.0Preferred score · NVD (NIST)
AV:N/AC:L/Au:N/C:N/I:N/A:PSourcesSingle source
EPSS trend
Probability
5.19%
Chance of exploitation in the next 30 days
Percentile
92%
Versus all other CVEs
30-day change
0.00 pp
From 5.19% on 19-09-2026
19-09-202619-10-2026
EPSS score5.19%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundLibevent
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Ubuntu3 products
- firefox< 53.0+build6-0ubuntu0.14.04.1 | < 53.0+build6-0ubuntu0.16.04.1
- libevent< 2.0.21-stable-1ubuntu1.14.04.2 | < 2.0.21-stable-2ubuntu0.16.04.1
- thunderbird< 1:52.1.1+build1-0ubuntu0.14.04.1 | < 1:52.1.1+build1-0ubuntu0.16.04.1
Debian2 products
- libevent< 2.0.21-stable-3
- debian_linuxEOL8.0
Alpine1 product
- libevent< 2.1.8-r0 | < 2.0.22-r1 | < 2.0.22-r2
Libevent_project1 product
- libevent≤ 2.1.5
4 vendors · 7 products
References
20 links
- github.com/libevent/libevent/commit/ec65c42052d95d2c23d1d837136d1cf1d9ecef9eX Refsource CONFIRMPatchThird Party Advisory
- www.openwall.com/lists/oss-security/2017/01/31/17Mailing ListX Refsource MLISTThird Party AdvisoryREPORT
- github.com/libevent/libevent/blob/release-2.1.6-beta/ChangeLogX Refsource CONFIRMRelease NotesThird Party Advisory