Stack-based Buffer Overflow Affecting nscd package, versions <0:2.12-1.166.el6_7.7


Severity

Recommended
critical

Based on CentOS security rating.

Threat Intelligence

Exploit Maturity
Mature
EPSS
97.4% (100th percentile)

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  • Snyk IDSNYK-CENTOS6-NSCD-2129765
  • published26 Jul 2021
  • disclosed16 Feb 2016

Introduced: 16 Feb 2016

CVE-2015-7547  (opens in a new tab)
CWE-121  (opens in a new tab)

How to fix?

Upgrade Centos:6 nscd to version 0:2.12-1.166.el6_7.7 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream nscd package and not the nscd package as distributed by Centos. See How to fix? for Centos:6 relevant fixed versions and status.

Multiple stack-based buffer overflows in the (1) send_dg and (2) send_vc functions in the libresolv library in the GNU C Library (aka glibc or libc6) before 2.23 allow remote attackers to cause a denial of service (crash) or possibly execute arbitrary code via a crafted DNS response that triggers a call to the getaddrinfo function with the AF_UNSPEC or AF_INET6 address family, related to performing "dual A/AAAA DNS queries" and the libnss_dns.so.2 NSS module.

References

CVSS Scores

version 3.1