CVE-2021-27645
low-risk
Published 2021-02-24
The nameserver caching daemon (nscd) in the GNU C Library (aka glibc or libc6) 2.29 through 2.33, when processing a request for netgroup lookup, may crash due to a double-free, potentially resulting in degraded service or Denial of Service on the local system. This is related to netgroupcache.c.
Do I need to act?
-
0.04% chance of exploitation
EPSS score — low exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
2
CVSS 2.5/10
Low
LOCAL
/ HIGH complexity
Affected Products (4)
Affected Vendors
References (10)
Third Party Advisory
https://security.gentoo.org/glsa/202107-07
Issue Tracking
https://sourceware.org/bugzilla/show_bug.cgi?id=27462
Third Party Advisory
https://security.gentoo.org/glsa/202107-07
Issue Tracking
https://sourceware.org/bugzilla/show_bug.cgi?id=27462
16
/ 100
low-risk
Severity
6/34 · Minimal
Exploitability
0/34 · Minimal
Exposure
10/34 · Low