CVE-2017-3735

Severity: medium (CVSS 5.3 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 21.0% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2017-08-28 · updated 2026-06-17
Weakness: CWE-119

Description

While parsing an IPAddressFamily extension in an X.509 certificate, it is possible to do a one-byte overread. This would result in an incorrect text display of the certificate. This bug has been present since 2006 and is present in all versions of OpenSSL before 1.0.2m and 1.1.0g.

Affected products

Debian Linux: 8.0, 9.0
OpenSSL: 0.9.7j, 0.9.7k, 0.9.7l, 0.9.7m, 0.9.8, 0.9.8a (+94)

References

http://www.oracle.com/technetwork/security-advisory/cpuapr2018-3678067.html
http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html
http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html
http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html
http://www.securityfocus.com/bid/100515
http://www.securitytracker.com/id/1039726
https://access.redhat.com/errata/RHSA-2018:3221
https://access.redhat.com/errata/RHSA-2018:3505
https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf
https://github.com/openssl/openssl/commit/068b963bb7afc57f5bdd723de0dd15e7795d5822
https://lists.debian.org/debian-lts-announce/2017/11/msg00011.html
https://security.FreeBSD.org/advisories/FreeBSD-SA-17:11.openssl.asc

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