Truncated packet could crash via OOB read
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Partial Red Hat: 19 fixed, 5 without a fix
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-125 and the CVSS impact.
Summary
If an SSL/TLS server or client is running on a 32-bit host, and a specific cipher is being used, then a truncated packet can cause that server or client to perform an out-of-bounds read, usually resulting in a crash. For OpenSSL 1.1.0, the crash can be triggered when using CHACHA20/POLY1305; users should upgrade to 1.1.0d. For Openssl 1.0.2, the crash can be triggered when using RC4-MD5; users who have not disabled that algorithm should update to 1.0.2k.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| OpenSSL | OpenSSL | openssl-1.1.0; openssl-1.1.0a; openssl-1.1.0b; openssl-1.1.0c; openssl-1.0.2; openssl-1.0.2a; openssl-1.0.2b; openssl-1.0.2c; openssl-1.0.2d; openssl-1.0.2e; openssl-1.0.2f; openssl-1.0.2g; openssl-1.0.2h; openssl-1.0.2i; openssl-1.0.2j | — | No fix listed | CNA |
- OpenSSL VendorOpenSSL Affected openssl-1.1.0; openssl-1.1.0a; openssl-1.1.0b; openssl-1.1.0c; openssl-1.0.2; openssl-1.0.2a; openssl-1.0.2b; openssl-1.0.2c; openssl-1.0.2d; openssl-1.0.2e; openssl-1.0.2f; openssl-1.0.2g; openssl-1.0.2h; openssl-1.0.2i; openssl-1.0.2j Fixed in — No fix listed CNA
CPE configurations NVD · 21
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:openssl:openssl:1.1.0a:*:*:*:*:*:*:* | 1.1.0a | Vulnerable | OpenSSL |
| cpe:2.3:a:openssl:openssl:1.1.0b:*:*:*:*:*:*:* | 1.1.0b | Vulnerable | OpenSSL |
| cpe:2.3:a:openssl:openssl:1.1.0c:*:*:*:*:*:*:* | 1.1.0c | Vulnerable | OpenSSL |
| cpe:2.3:a:openssl:openssl:1.0.2:*:*:*:*:*:*:* | 1.0.2 | Vulnerable | OpenSSL |
| cpe:2.3:a:openssl:openssl:1.0.2:beta1:*:*:*:*:*:* | 1.0.2 beta1 | Vulnerable | OpenSSL |
| cpe:2.3:a:openssl:openssl:1.0.2:beta2:*:*:*:*:*:* | 1.0.2 beta2 | Vulnerable | OpenSSL |
| cpe:2.3:a:openssl:openssl:1.0.2:beta3:*:*:*:*:*:* | 1.0.2 beta3 | Vulnerable | OpenSSL |
| cpe:2.3:a:openssl:openssl:1.0.2a:*:*:*:*:*:*:* | 1.0.2a | Vulnerable | OpenSSL |
| cpe:2.3:a:openssl:openssl:1.0.2b:*:*:*:*:*:*:* | 1.0.2b | Vulnerable | OpenSSL |
| cpe:2.3:a:openssl:openssl:1.0.2c:*:*:*:*:*:*:* | 1.0.2c | Vulnerable | OpenSSL |
- cpe:2.3:a:openssl:openssl:1.1.0a:*:*:*:*:*:*:* Versions 1.1.0a Vulnerable ·OpenSSL
- cpe:2.3:a:openssl:openssl:1.1.0b:*:*:*:*:*:*:* Versions 1.1.0b Vulnerable ·OpenSSL
- cpe:2.3:a:openssl:openssl:1.1.0c:*:*:*:*:*:*:* Versions 1.1.0c Vulnerable ·OpenSSL
- cpe:2.3:a:openssl:openssl:1.0.2:*:*:*:*:*:*:* Versions 1.0.2 Vulnerable ·OpenSSL
- cpe:2.3:a:openssl:openssl:1.0.2:beta1:*:*:*:*:*:* Versions 1.0.2 beta1 Vulnerable ·OpenSSL
- cpe:2.3:a:openssl:openssl:1.0.2:beta2:*:*:*:*:*:* Versions 1.0.2 beta2 Vulnerable ·OpenSSL
- cpe:2.3:a:openssl:openssl:1.0.2:beta3:*:*:*:*:*:* Versions 1.0.2 beta3 Vulnerable ·OpenSSL
- cpe:2.3:a:openssl:openssl:1.0.2a:*:*:*:*:*:*:* Versions 1.0.2a Vulnerable ·OpenSSL
- cpe:2.3:a:openssl:openssl:1.0.2b:*:*:*:*:*:*:* Versions 1.0.2b Vulnerable ·OpenSSL
- cpe:2.3:a:openssl:openssl:1.0.2c:*:*:*:*:*:*:* Versions 1.0.2c Vulnerable ·OpenSSL
Show 11 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:openssl:openssl:1.0.2d:*:*:*:*:*:*:* | 1.0.2d | Vulnerable | OpenSSL |
| cpe:2.3:a:openssl:openssl:1.0.2e:*:*:*:*:*:*:* | 1.0.2e | Vulnerable | OpenSSL |
| cpe:2.3:a:openssl:openssl:1.0.2f:*:*:*:*:*:*:* | 1.0.2f | Vulnerable | OpenSSL |
| cpe:2.3:a:openssl:openssl:1.0.2h:*:*:*:*:*:*:* | 1.0.2h | Vulnerable | OpenSSL |
| cpe:2.3:a:openssl:openssl:1.0.2i:*:*:*:*:*:*:* | 1.0.2i | Vulnerable | OpenSSL |
| cpe:2.3:a:openssl:openssl:1.0.2j:*:*:*:*:*:*:* | 1.0.2j | Vulnerable | OpenSSL |
| cpe:2.3:a:nodejs:node.js:*:*:*:*:-:*:*:* | 4.0.0 – 4.1.2 | Vulnerable | NodeJS |
| cpe:2.3:a:nodejs:node.js:*:*:*:*:lts:*:*:* | 4.2.0 to before 4.7.3 | Vulnerable | NodeJS |
| cpe:2.3:a:nodejs:node.js:*:*:*:*:-:*:*:* | 5.0.0 – 5.12.0; 6.0.0 – 6.8.1 | Vulnerable | NodeJS |
| cpe:2.3:a:nodejs:node.js:*:*:*:*:lts:*:*:* | 6.9.0 to before 6.9.5 | Vulnerable | NodeJS |
| cpe:2.3:a:nodejs:node.js:*:*:*:*:-:*:*:* | 7.0.0 to before 7.5.0 | Vulnerable | NodeJS |
- cpe:2.3:a:openssl:openssl:1.0.2d:*:*:*:*:*:*:* Versions 1.0.2d Vulnerable ·OpenSSL
- cpe:2.3:a:openssl:openssl:1.0.2e:*:*:*:*:*:*:* Versions 1.0.2e Vulnerable ·OpenSSL
- cpe:2.3:a:openssl:openssl:1.0.2f:*:*:*:*:*:*:* Versions 1.0.2f Vulnerable ·OpenSSL
- cpe:2.3:a:openssl:openssl:1.0.2h:*:*:*:*:*:*:* Versions 1.0.2h Vulnerable ·OpenSSL
- cpe:2.3:a:openssl:openssl:1.0.2i:*:*:*:*:*:*:* Versions 1.0.2i Vulnerable ·OpenSSL
- cpe:2.3:a:openssl:openssl:1.0.2j:*:*:*:*:*:*:* Versions 1.0.2j Vulnerable ·OpenSSL
- cpe:2.3:a:nodejs:node.js:*:*:*:*:-:*:*:* Versions 4.0.0 – 4.1.2 Vulnerable ·NodeJS
- cpe:2.3:a:nodejs:node.js:*:*:*:*:lts:*:*:* Versions 4.2.0 to before 4.7.3 Vulnerable ·NodeJS
- cpe:2.3:a:nodejs:node.js:*:*:*:*:-:*:*:* Versions 5.0.0 – 5.12.0; 6.0.0 – 6.8.1 Vulnerable ·NodeJS
- cpe:2.3:a:nodejs:node.js:*:*:*:*:lts:*:*:* Versions 6.9.0 to before 6.9.5 Vulnerable ·NodeJS
- cpe:2.3:a:nodejs:node.js:*:*:*:*:-:*:*:* Versions 7.0.0 to before 7.5.0 Vulnerable ·NodeJS
Remediation
Red Hat 4 advisories
- RHSA-2018:2186 Released 2018-07-12 · Red Hat rating ModerateRed Hat JBoss Core Services Apache HTTP Server 2.4.29 RHEL 6 security update
- Red Hat JBoss Core Services on RHEL 6 Server jbcs-httpd24-apache-commons-daemon-1.1.0-1.redhat_2.1.jbcs.el6, jbcs-httpd24-apache-commons-daemon-jsvc-1:1.1.0-1.redhat_2.jbcs.el6, jbcs-httpd24-apr-1.6.3-14.jbcs.el6 +34
- RHSA-2018:2185 Released 2018-07-12 · Red Hat rating ModerateRed Hat JBoss Core Services Apache HTTP Server 2.4.29 RHEL 7 security update
- Red Hat JBoss Core Services on RHEL 7 Server jbcs-httpd24-apache-commons-daemon-1.1.0-1.redhat_2.1.jbcs.el7, jbcs-httpd24-apache-commons-daemon-jsvc-1:1.1.0-1.redhat_2.jbcs.el7, jbcs-httpd24-apr-1.6.3-14.jbcs.el7 +34
- RHSA-2018:2187 Released 2018-07-12 · Red Hat rating ModerateRed Hat JBoss Core Services Apache HTTP Server 2.4.29 security update
- Red Hat JBoss Core Services
Show 1 more Red Hat advisories
- RHSA-2017:0286 Released 2017-02-20 · Red Hat rating Moderateopenssl security update
- Red Hat Enterprise Linux Client (v. 7) openssl-1:1.0.1e-60.el7_3.1, openssl-libs-1:1.0.1e-60.el7_3.1
- Red Hat Enterprise Linux Client Optional (v. 7) openssl-devel-1:1.0.1e-60.el7_3.1, openssl-perl-1:1.0.1e-60.el7_3.1, openssl-static-1:1.0.1e-60.el7_3.1
- Red Hat Enterprise Linux ComputeNode (v. 7) openssl-1:1.0.1e-60.el7_3.1, openssl-libs-1:1.0.1e-60.el7_3.1
- Red Hat Enterprise Linux ComputeNode Optional (v. 7) openssl-devel-1:1.0.1e-60.el7_3.1, openssl-perl-1:1.0.1e-60.el7_3.1, openssl-static-1:1.0.1e-60.el7_3.1
- Red Hat Enterprise Linux Desktop (v. 6) openssl-1.0.1e-48.el6_8.4
- Red Hat Enterprise Linux Desktop Optional (v. 6) openssl-devel-1.0.1e-48.el6_8.4, openssl-perl-1.0.1e-48.el6_8.4, openssl-static-1.0.1e-48.el6_8.4
- Red Hat Enterprise Linux HPC Node (v. 6) openssl-1.0.1e-48.el6_8.4
- Red Hat Enterprise Linux HPC Node Optional (v. 6) openssl-devel-1.0.1e-48.el6_8.4, openssl-perl-1.0.1e-48.el6_8.4, openssl-static-1.0.1e-48.el6_8.4
- Red Hat Enterprise Linux Server (v. 6) openssl-1.0.1e-48.el6_8.4, openssl-1.0.1e-48.el6_8.4.ppc, openssl-devel-1.0.1e-48.el6_8.4 +1
- Red Hat Enterprise Linux Server (v. 7) openssl-1:1.0.1e-60.el7_3.1, openssl-devel-1:1.0.1e-60.el7_3.1, openssl-devel-1:1.0.1e-60.el7_3.1.ppc +2
- Red Hat Enterprise Linux Server Optional (v. 6) openssl-perl-1.0.1e-48.el6_8.4, openssl-static-1.0.1e-48.el6_8.4
- Red Hat Enterprise Linux Server Optional (v. 7) openssl-perl-1:1.0.1e-60.el7_3.1, openssl-static-1:1.0.1e-60.el7_3.1, openssl-static-1:1.0.1e-60.el7_3.1.ppc
- Red Hat Enterprise Linux Workstation (v. 6) openssl-1.0.1e-48.el6_8.4, openssl-devel-1.0.1e-48.el6_8.4
- Red Hat Enterprise Linux Workstation (v. 7) openssl-1:1.0.1e-60.el7_3.1, openssl-devel-1:1.0.1e-60.el7_3.1, openssl-libs-1:1.0.1e-60.el7_3.1
- Red Hat Enterprise Linux Workstation Optional (v. 6) openssl-perl-1.0.1e-48.el6_8.4, openssl-static-1.0.1e-48.el6_8.4
- Red Hat Enterprise Linux Workstation Optional (v. 7) openssl-perl-1:1.0.1e-60.el7_3.1, openssl-static-1:1.0.1e-60.el7_3.1
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Advisory ·
OpenSSL — GLSA-201702-07
3 records Highest priority Priority HIGH 2 HIGH, 1 MEDIUM
Other records, highest priority first
- TI-2017-02847 Bad (EC)DHE parameters cause a client crashPriority HIGH 66
- TI-2017-02849 BN_mod_exp may produce incorrect results on x86_64Priority MEDIUM 42
- Advisory ·
OpenSSL — FreeBSD-SA-17:02
2 records Highest priority Priority HIGH 1 HIGH, 1 MEDIUM
Other records, highest priority first
- TI-2017-02849 BN_mod_exp may produce incorrect results on x86_64Priority MEDIUM 42
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 7 | Affected | No fix planned: Will not fix |
| Red Hat Enterprise Virtualization 3 | Affected | No fix planned: Will not fix |
| Red Hat JBoss Enterprise Application Platform 6 | Affected | No fix planned: Will not fix |
| Red Hat JBoss Enterprise Web Server 2 | Affected | No fix yet |
| Red Hat JBoss Web Server 3 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux Client (v. 7) | Fixed | RHSA-2017:0286 |
| Red Hat Enterprise Linux Client Optional (v. 7) | Fixed | RHSA-2017:0286 |
| Red Hat Enterprise Linux ComputeNode (v. 7) | Fixed | RHSA-2017:0286 |
| Red Hat Enterprise Linux ComputeNode Optional (v. 7) | Fixed | RHSA-2017:0286 |
| Red Hat Enterprise Linux Desktop (v. 6) | Fixed | RHSA-2017:0286 |
| Red Hat Enterprise Linux Desktop Optional (v. 6) | Fixed | RHSA-2017:0286 |
| Red Hat Enterprise Linux HPC Node (v. 6) | Fixed | RHSA-2017:0286 |
| Red Hat Enterprise Linux HPC Node Optional (v. 6) | Fixed | RHSA-2017:0286 |
| Red Hat Enterprise Linux Server (v. 6) | Fixed | RHSA-2017:0286 |
| Red Hat Enterprise Linux Server (v. 7) | Fixed | RHSA-2017:0286 |
| Red Hat Enterprise Linux Server Optional (v. 6) | Fixed | RHSA-2017:0286 |
| Red Hat Enterprise Linux Server Optional (v. 7) | Fixed | RHSA-2017:0286 |
| Red Hat Enterprise Linux Workstation (v. 6) | Fixed | RHSA-2017:0286 |
| Red Hat Enterprise Linux Workstation (v. 7) | Fixed | RHSA-2017:0286 |
| Red Hat Enterprise Linux Workstation Optional (v. 6) | Fixed | RHSA-2017:0286 |
| Red Hat Enterprise Linux Workstation Optional (v. 7) | Fixed | RHSA-2017:0286 |
| Red Hat JBoss Core Services | Fixed | RHSA-2018:2187 |
| Red Hat JBoss Core Services on RHEL 6 Server | Fixed | RHSA-2018:2186 |
| Red Hat JBoss Core Services on RHEL 7 Server | Fixed | RHSA-2018:2185 |
Not affected: 5 products
- Red Hat Enterprise Linux 5
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat JBoss Enterprise Application Platform 5
- Red Hat JBoss Enterprise Web Server 1
Timeline
- 2026-10-02 Threatist record created from CVE-2017-3731
- 2026-10-03 Alias added: GHSA-3cp9-4w64-73cg
References
Patch 4
- http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html
- http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
- http://www.oracle.com/technetwork/security-advisory/cpujul2017-3236622.html
- https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html
Advisory 14
- RHSA-2018:2185
- RHSA-2018:2186
- https://security.netapp.com/advisory/ntap-20171019-0002/
- RHSA-2017:0286
- FreeBSD-SA-17:02
- https://www.openssl.org/news/secadv/20170126.txt
- https://www.tenable.com/security/tns-2017-04
- https://source.android.com/security/bulletin/pixel/2017-11-01
- GLSA-201702-07
- DSA-3773
- https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03838en_us
- RHSA-2018:2187
- https://github.com/openssl/openssl/commit/00d965474b22b54e4275232bc71ee0c699c5cd21
- https://security.paloaltonetworks.com/CVE-2017-3731
More Openssl vulnerabilities
- TI-2022-01915 The c_rehash script allows command injection CVSS 3.1CRITICAL 9.8
- TI-2021-02645 SM2 Decryption Buffer Overflow CVSS 3.1CRITICAL 9.8
- TI-2009-03392 The TLS protocol, and the SSL protocol 3.0 and possibly earlier, as used in Microsoft… CVSS 3.1CRITICAL 9.8
- TI-2022-01176 The c_rehash script allows command injection CVSS 3.1CRITICAL 9.8
- TI-2014-00154 The (1) TLS and (2) DTLS implementations in OpenSSL 1.0.1 before 1.0.1g do not properly… KEVCVSS 3.1HIGH 7.5
- TI-2025-14107 Stack buffer overflow in CMS (Auth)EnvelopedData parsing CVSS 3.1HIGH 8.8
Sources
- CVE-2017-3731 · CVE Program
- CVE-2017-3731 · NVD
- FIRST EPSS
- GHSA-3cp9-4w64-73cg · GitHub Advisory Database · CC BY 4.0
- CVE-2017-3731 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences