CVE-2021-27645
- State
- Published
- Severity
- 2.5 Low
- Published
- Feb 24, 2021
- Updated
- Oct 14, 2026
- Reserved
- Feb 24, 2021
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 2.5 Low | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L | CISA-ADP |
Weaknesses
- CWE-415 Double Free
Affected Products
| Product | Versions |
|---|---|
n/an/a |
|
References
- https://sourceware.org/bugzilla/show_bug.cgi?id=27462
- FEDORA-2021-6749bfcfd9vendor-advisory
- FEDORA-2021-2ba993d6c5vendor-advisory
- GLSA-202107-07vendor-advisory
- [debian-lts-announce] 20221017 [SECURITY] [DLA 3152-1] glibc security updatemailing-list
- https://cert-portal.siemens.com/productcert/html/ssa-831302.html
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html
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