cve-2023-4806
Vulnerability from cvelistv5
Published
2023-09-18 16:33
Modified
2024-11-15 20:21
Summary
A flaw was found in glibc. In an extremely rare situation, the getaddrinfo function may access memory that has been freed, resulting in an application crash. This issue is only exploitable when a NSS module implements only the _nss_*_gethostbyname2_r and _nss_*_getcanonname_r hooks without implementing the _nss_*_gethostbyname3_r hook. The resolved name should return a large number of IPv6 and IPv4, and the call to the getaddrinfo function should have the AF_INET6 address family with AI_CANONNAME, AI_ALL and AI_V4MAPPED as flags.
References
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2023:5453Third Party Advisory
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2023:5455Third Party Advisory
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2023:7409
secalert@redhat.comhttps://access.redhat.com/security/cve/CVE-2023-4806Third Party Advisory
secalert@redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=2237782Issue Tracking, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2023/10/03/4
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2023/10/03/5
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2023/10/03/6
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2023/10/03/8
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2023:5453Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2023:5455Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2023:7409
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/security/cve/CVE-2023-4806Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=2237782Issue Tracking, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4DBUQRRPB47TC3NJOUIBVWUGFHBJAFDL/
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DFG4P76UHHZEWQ26FWBXG76N2QLKKPZA/
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NDAQWHTSVOCOZ5K6KPIWKRT3JX4RTZUR/
af854a3a-2127-422b-91ae-364da2661108https://security.gentoo.org/glsa/202310-03
af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20240125-0008/
Impacted products
Vendor Product Version
Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:2.28-225.el8_8.6   < *
    cpe:/a:redhat:enterprise_linux:8::appstream
    cpe:/a:redhat:enterprise_linux:8::crb
    cpe:/o:redhat:enterprise_linux:8::baseos
Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Unaffected: 0:2.28-189.8.el8_6   < *
    cpe:/o:redhat:rhel_eus:8.6::baseos
    cpe:/a:redhat:rhel_eus:8.6::appstream
    cpe:/a:redhat:rhel_eus:8.6::crb
    cpe:/o:redhat:rhev_hypervisor:4.4::el8
Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:2.34-60.el9_2.7   < *
    cpe:/a:redhat:enterprise_linux:9::crb
    cpe:/a:redhat:enterprise_linux:9::appstream
    cpe:/o:redhat:enterprise_linux:9::baseos
Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:2.34-60.el9_2.7   < *
    cpe:/a:redhat:enterprise_linux:9::crb
    cpe:/a:redhat:enterprise_linux:9::appstream
    cpe:/o:redhat:enterprise_linux:9::baseos
Red Hat Red Hat Virtualization 4 for Red Hat Enterprise Linux 8 Unaffected: 0:2.28-189.8.el8_6   < *
    cpe:/o:redhat:rhel_eus:8.6::baseos
    cpe:/a:redhat:rhel_eus:8.6::appstream
    cpe:/a:redhat:rhel_eus:8.6::crb
    cpe:/o:redhat:rhev_hypervisor:4.4::el8
Red Hat Red Hat Enterprise Linux 6     cpe:/o:redhat:enterprise_linux:6
Red Hat Red Hat Enterprise Linux 6     cpe:/o:redhat:enterprise_linux:6
Red Hat Red Hat Enterprise Linux 7     cpe:/o:redhat:enterprise_linux:7
Red Hat Red Hat Enterprise Linux 7     cpe:/o:redhat:enterprise_linux:7
Show details on NVD website


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Advisory\"]},{\"url\":\"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4DBUQRRPB47TC3NJOUIBVWUGFHBJAFDL/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DFG4P76UHHZEWQ26FWBXG76N2QLKKPZA/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NDAQWHTSVOCOZ5K6KPIWKRT3JX4RTZUR/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://security.gentoo.org/glsa/202310-03\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://security.netapp.com/advisory/ntap-20240125-0008/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"}]}}"
  }
}


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Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.