CVE-2018-13259 is a critical vulnerability affecting zsh versions prior to 5.6, including those in Canonical Ubuntu Linux. It stems from the truncation of shebang lines exceeding 64 characters, which could lead to the execution of an unintended program. With a CVSS score of 9.8 (CRITICAL), this network-exploitable flaw requires no user interaction and can result in complete compromise of confidentiality, integrity, and availability. While there are no known active exploits, public exploit code, or KEV entries, the vulnerability has garnered significant community discussion, indicating awareness and potential for future exploitation.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
14.04CPE matchmatch criteria | cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* | ||
16.04CPE matchmatch criteria | cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* | ||
18.04CPE matchmatch criteria | cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* | ||
< 5.6CPE matchmatch criteria | cpe:2.3:a:zsh:zsh:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.