CVE-2018-16839 is a critical buffer overrun vulnerability affecting Curl versions 7.33.0 through 7.61.1, specifically within its SASL authentication code. This flaw impacts various distributions including Canonical, Debian, and Haxx Curl. With a CVSS score of 9.8 (Critical), it presents a severe risk, allowing unauthenticated attackers to achieve complete compromise of confidentiality, integrity, and availability (C:H/I:H/A:H) with low attack complexity over the network. Despite its critical severity, there is currently no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 7.33.0, <= 7.61.1CPE matchmatch criteria | cpe:2.3:a:haxx:curl:*:*:*:*:*:*:*:* | ||
8.0CPE matchmatch criteria | cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* | ||
9.0CPE matchmatch criteria | cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* | ||
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:*:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
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.
curl: Integer overflow leading to heap-based buffer overflow in Curl_sasl_create_plain_message()
Oct 31, 2018SASL password overflow via integer overflow
Oct 31, 2018SASL password overflow via integer overflow
Oct 31, 2018