CVE-2018-8778
Published · Updated
3Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackepss 7.5%
exploitation probability
7.5%top 6% of all CVEs
observed exploitation
nono source reports it
In Ruby before 2.2.10, 2.3.x before 2.3.7, 2.4.x before 2.4.4, 2.5.x before 2.5.1, and 2.6.0-preview1, an attacker controlling the unpacking format (similar to format string vulnerabilities) can trigger a buffer under-read in the String#unpack method, resulting in a massive and controlled information disclosure.
Affected products
n/a · n/aReferences
http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00036.htmlhttps://access.redhat.com/errata/RHSA-2018:3729https://access.redhat.com/errata/RHSA-2018:3730https://access.redhat.com/errata/RHSA-2018:3731https://access.redhat.com/errata/RHSA-2019:2028https://lists.debian.org/debian-lts-announce/2018/04/msg00023.htmlhttps://lists.debian.org/debian-lts-announce/2018/04/msg00024.htmlhttps://lists.debian.org/debian-lts-announce/2018/07/msg00012.htmlhttps://usn.ubuntu.com/3626-1/https://www.debian.org/security/2018/dsa-4259https://www.ruby-lang.org/en/news/2018/03/28/buffer-under-read-unpack-cve-2018-8778/https://www.ruby-lang.org/en/news/2018/03/28/ruby-2-2-10-released/