vulnwire
7.5high

CVE-2017-3731in critical feed

Truncated packet could crash via OOB read

Published 9 y ago · modified 4 mo ago · JSON

CVSS
7.5
v3.1 · NVD
CISA KEV
No
not known exploited
EPSS
57.3%
percentile 99%
Public exploits
0
none known

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.

Exploit prediction (EPSS)

57.32% probability of exploitation in the next 30 days, higher than 99% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
NVD3.17.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD2.05.0AV:N/AC:L/Au:N/C:N/I:N/A:P

Affected products

  • OpenSSL OpenSSL

Classification

Weakness
Technology feeds
Node.js (RSS, critical only) · OpenSSL (RSS, critical only)

References

  • access.redhat.com /errata/RHSA-2018:2185 · vendor-advisory, x_refsource_REDHAT, x_transferred
  • access.redhat.com /errata/RHSA-2018:2186 · vendor-advisory, x_refsource_REDHAT, x_transferred
  • security.netapp.com /advisory/ntap-20171019-0002/ · x_refsource_CONFIRM, x_transferred
  • oracle.com /technetwork/security-advisory/cpujan2018-3236628.html · x_refsource_CONFIRM, x_transferred
  • securityfocus.com /bid/95813 · vdb-entry, x_refsource_BID, x_transferred
  • rhn.redhat.com /errata/RHSA-2017-0286.html · vendor-advisory, x_refsource_REDHAT, x_transferred
  • security.freebsd.org /advisories/FreeBSD-SA-17:02.openssl.asc · vendor-advisory, x_refsource_FREEBSD, x_transferred
  • openssl.org /news/secadv/20170126.txt · x_refsource_CONFIRM, x_transferred
  • securitytracker.com /id/1037717 · vdb-entry, x_refsource_SECTRACK, x_transferred
  • oracle.com /technetwork/security-advisory/cpuoct2017-3236626.html · x_refsource_CONFIRM, x_transferred
  • tenable.com /security/tns-2017-04 · x_refsource_CONFIRM, x_transferred
  • source.android.com /security/bulletin/pixel/2017-11-01 · x_refsource_CONFIRM, x_transferred
  • security.gentoo.org /glsa/201702-07 · vendor-advisory, x_refsource_GENTOO, x_transferred
  • oracle.com /technetwork/security-advisory/cpujul2017-3236622.html · x_refsource_CONFIRM, x_transferred
  • debian.org /security/2017/dsa-3773 · vendor-advisory, x_refsource_DEBIAN, x_transferred
  • support.hpe.com /hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03838en_us · x_refsource_CONFIRM, x_transferred
  • access.redhat.com /errata/RHSA-2018:2187 · vendor-advisory, x_refsource_REDHAT, x_transferred
  • github.com /openssl/openssl/commit/00d965474b22b54e4275232bc71ee0c699c5cd21 · x_refsource_MISC, x_transferred
  • oracle.com /technetwork/security-advisory/cpuapr2019-5072813.html · x_refsource_MISC, x_transferred
  • security.paloaltonetworks.com /CVE-2017-3731 · x_refsource_CONFIRM, x_transferred

Sources

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