Stack-based Buffer Overflow Affecting glibc package, versions <0:2.17-106.el7_2.4


Severity

Recommended
critical

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

Exploit Maturity
Mature
EPSS
97.4% (100th percentile)

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  • Snyk IDSNYK-RHEL7-GLIBC-4594064
  • 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 RHEL:7 glibc to version 0:2.17-106.el7_2.4 or higher.
This issue was patched in RHSA-2016:0176.

NVD Description

Note: Versions mentioned in the description apply only to the upstream glibc package and not the glibc package as distributed by RHEL. See How to fix? for RHEL:7 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

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