CVE-2021-27645 is a double-free vulnerability in the nameserver caching daemon (nscd) of GNU C Library (glibc) versions 2.29 through 2.33, affecting various Debian, Fedora, and GNU systems. This flaw can lead to a crash of the nscd service, potentially causing a Denial of Service on the local system. With a CVSS score of 2.5 (LOW), it requires local access and high attack complexity, resulting in a low impact on availability. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 2.29, <= 2.33CPE matchmatch criteria | cpe:2.3:a:gnu:glibc:*:*:*:*:*:*:*:* | ||
33CPE matchmatch criteria | cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* | ||
34CPE matchmatch criteria | cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* | ||
10.0CPE matchmatch criteria | cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
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