CVE-2016-6306: canonical ubuntu_linux Out-of-bounds Read
Modified
AliasesALPINE-CVE-2016-6306UBUNTU-CVE-2016-6306DEBIAN-CVE-2016-6306
Published 26-09-2016Last modified 06-08-2024
Vulnerability summary
CVE-2016-6306 is a medium (CVSS 5.9) Out-of-bounds Read vulnerability in canonical ubuntu_linux. EPSS estimates a 41.68% chance of exploitation in the next 30 days, higher than 98.6% of scored vulnerabilities.
Priority
Routine
Not severe (CVSS 5.9, network access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?CVSS score
5.9/10
010
Medium · v3.1 (NVD)EPSS score
41.68%
0%100%
High · 0.00 pp in 30 daysKEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 18 · Related 11Timeline
- 26-09-2016PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
Description
The certificate parser in OpenSSL before 1.0.1u and 1.0.2 before 1.0.2i might allow remote attackers to cause a denial of service (out-of-bounds read) via crafted certificate operations, related to s3_clnt.c and s3_srvr.c.
CVSS metrics
6 scores · 4 sources · 3 versionsMedium 5.9Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:HSourcesAll 4 agree
- OSV · AlpineEcosystem advisory · calculated5.9MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · UbuntuEcosystem advisory · calculated5.9MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated5.9MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Medium 5.9Preferred score · OSV · Ubuntu (Ecosystem advisory) · calculated from vector
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:HSourcesSingle source
Medium 4.3Preferred score · NVD (NIST)
AV:N/AC:M/Au:N/C:N/I:N/A:PSourcesSingle source
EPSS trend
Probability
41.68%
Chance of exploitation in the next 30 days
Percentile
99%
Versus all other CVEs
30-day change
No change 0.00 pp
From 41.68% on 04-10-2026
04-10-202603-11-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Version check
Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.
Hp4 products
Debian2 products
- openssl< 1.0.2i-1
- debian_linuxEOL8.0
Alpine1 product
- openssl< 1.0.2i-r0
Canonical1 product
- ubuntu_linuxEOL12.04 | 14.04 | 16.04
Nodejs1 product
- node.js≥ 0.10.0, < 0.10.47 | ≥ 0.12.0, < 0.12.16 | ≥ 4.0.0, ≤ 4.1.2 | ≥ 4.2.0, < 4.6.0 | ≥ 5.0.0, ≤ 5.12.0 | ≥ 6.0.0, < 6.7.0
Novell1 product
Openssl1 product
- opensslEOL1.0.1 | 1.0.1:beta1 | 1.0.1:beta2 | 1.0.1:beta3 | 1.0.1a | 1.0.1b | 1.0.1c | 1.0.1d | 1.0.1e | 1.0.1f | 1.0.1g | 1.0.1h | 1.0.1i | 1.0.1j | 1.0.1k | 1.0.1l | 1.0.1m | 1.0.1n | 1.0.1o | 1.0.1p | 1.0.1q | 1.0.1r | 1.0.1s | 1.0.1t | 1.0.2 | 1.0.2:beta1 | 1.0.2:beta2 | 1.0.2:beta3 | 1.0.2a | 1.0.2b | 1.0.2c | 1.0.2d | 1.0.2e | 1.0.2f | 1.0.2h
Ubuntu1 product
- openssl< 1.0.1f-1ubuntu2.20 | < 1.0.2g-1ubuntu4.4
8 vendors · 12 products
References
61 links- www.tenable.com/security/tns-2016-20Third Party Advisory
- kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA40312Third Party Advisory
- www.tenable.com/security/tns-2016-16Third Party Advisory
Show all 61 references
- www.tenable.com/security/tns-2016-21Third Party Advisory
- bto.bluecoat.com/security-advisory/sa132Third Party Advisory
- lists.opensuse.org/opensuse-security-announce/2016-10/msg00013.htmlVendor AdvisoryMailing ListThird Party Advisory
- h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05302448Third Party Advisory
- kb.juniper.net/InfoCenter/index?page=content&id=JSA10759Third Party Advisory
- kc.mcafee.com/corporate/index?page=content&id=SB10215Third Party Advisory
- lists.opensuse.org/opensuse-security-announce/2017-10/msg00011.htmlVendor AdvisoryThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2016-10/msg00012.htmlVendor AdvisoryMailing ListThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2016-10/msg00029.htmlVendor AdvisoryThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2017-10/msg00010.htmlVendor AdvisoryMailing ListThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2016-09/msg00031.htmlVendor AdvisoryMailing ListThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2016-10/msg00005.htmlVendor AdvisoryThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2016-09/msg00023.htmlVendor AdvisoryThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2018-02/msg00032.htmlVendor AdvisoryMailing ListThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2016-09/msg00022.htmlVendor AdvisoryMailing ListThird Party Advisory
- support.f5.com/csp/article/K90492697Third Party Advisory
- lists.opensuse.org/opensuse-security-announce/2016-10/msg00011.htmlVendor AdvisoryThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2016-10/msg00021.htmlVendor AdvisoryMailing ListThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2016-09/msg00024.htmlVendor AdvisoryMailing ListThird Party Advisory
- www.huawei.com/en/psirt/security-advisories/huawei-sa-20170322-01-openssl-enThird Party Advisory
- www.oracle.com/security-alerts/cpuapr2020.htmlThird Party Advisory
- www.oracle.com/security-alerts/cpujul2020.htmlThird Party Advisory
- www.oracle.com/security-alerts/cpujan2020.htmlThird Party Advisory
- www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.htmlThird Party Advisory
- www-01.ibm.com/support/docview.wss?uid=swg21995039Third Party Advisory
- www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.htmlThird Party Advisory
- www.oracle.com/security-alerts/cpuoct2020.htmlThird Party Advisory