HIGH
glibc: getaddrinfo stack-based buffer overflow
Published Feb 18, 2016
8.1
HIGHCVSS 3.0
EPSS 90.99%
Description
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.
Affected products
No data.
Configuration 1
- 8.0
Configuration 2
OR
- 12.04
- 14.04
- 15.10
Configuration 3
OR
- 1.1.1
- 2.0.0
- 2.1.0
- 7.5
Configuration 4
OR
- 9.319
- 9.355
Configuration 5
OR
- 11.0
- 11.0
- 11.0
- 13.2
- 11.0
- 11.0
- 12
- 12
- 11.0
- 11.0
- 11.0
- 11.0
- 12
- 11.0
- 11.0
- 12
- 12
- 12
Configuration 6
OR
- 1.0
- 2.0
Configuration 7
OR
- 12.0.0
- 12.0.0
- 12.0.0
- 12.0.0
- 12.0.0
- 12.0.0
- 12.0.0
- 12.0.0
- 12.0.0
Configuration 8
- ≤ 2290
Configuration 9
OR
- 7.0
- 7.0
- 7.2
- 7.0
- 7.2
- 7.2
- 7.0
Configuration 10
OR
- 2.9
- 2.10
- 2.10.1
- 2.11
- 2.11.1
- 2.11.2
- 2.11.3
- 2.12
- 2.12.1
- 2.12.2
- 2.13
- 2.14
- 2.14.1
- 2.15
- 2.16
- 2.17
- 2.18
- 2.19
- 2.20
- 2.21
- 2.22
No data.
RHEV 3.X Hypervisor and Agents for RHEL-6
rhev-hypervisor6-0:6.7-20160104.2.el6ev
Fixed · RHSA-2016:0277
RHEV 3.X Hypervisor and Agents for RHEL-6
rhev-hypervisor7-0:7.2-20160105.2.el6ev
Fixed · RHSA-2016:0277
RHEV 3.X Hypervisor and Agents for RHEL-7
rhev-hypervisor7-0:7.2-20160105.2.el7ev
Fixed · RHSA-2016:0277
Red Hat Enterprise Linux 6
glibc-0:2.12-1.166.el6_7.7
Fixed · RHSA-2016:0175
Red Hat Enterprise Linux 6.2 Advanced Update Support
glibc-0:2.12-1.47.el6_2.17
Fixed · RHSA-2016:0225
Red Hat Enterprise Linux 6.4 Advanced Update Support
glibc-0:2.12-1.107.el6_4.9
Fixed · RHSA-2016:0225
Red Hat Enterprise Linux 6.5 Advanced Update Support
glibc-0:2.12-1.132.el6_5.7
Fixed · RHSA-2016:0225
Red Hat Enterprise Linux 6.6 Extended Update Support
glibc-0:2.12-1.149.el6_6.11
Fixed · RHSA-2016:0225
Red Hat Enterprise Linux 7
glibc-0:2.17-106.el7_2.4
Fixed · RHSA-2016:0176
Red Hat Enterprise Linux 7.1 Extended Update Support
glibc-0:2.17-79.ael7b_1.4
Fixed · RHSA-2016:0225
Red Hat Enterprise Linux 4
glibc
Not affected
Red Hat Enterprise Linux 5
glibc
Not affected
Red Hat Enterprise Linux 6
guest-images
Affected
Red Hat Enterprise Linux 7
rhel-guest-image
Affected
| Product | Package | State | Advisory |
|---|---|---|---|
| RHEV 3.X Hypervisor and Agents for RHEL-6 | rhev-hypervisor6-0:6.7-20160104.2.el6ev | Fixed | RHSA-2016:0277 |
| RHEV 3.X Hypervisor and Agents for RHEL-6 | rhev-hypervisor7-0:7.2-20160105.2.el6ev | Fixed | RHSA-2016:0277 |
| RHEV 3.X Hypervisor and Agents for RHEL-7 | rhev-hypervisor7-0:7.2-20160105.2.el7ev | Fixed | RHSA-2016:0277 |
| Red Hat Enterprise Linux 6 | glibc-0:2.12-1.166.el6_7.7 | Fixed | RHSA-2016:0175 |
| Red Hat Enterprise Linux 6.2 Advanced Update Support | glibc-0:2.12-1.47.el6_2.17 | Fixed | RHSA-2016:0225 |
| Red Hat Enterprise Linux 6.4 Advanced Update Support | glibc-0:2.12-1.107.el6_4.9 | Fixed | RHSA-2016:0225 |
| Red Hat Enterprise Linux 6.5 Advanced Update Support | glibc-0:2.12-1.132.el6_5.7 | Fixed | RHSA-2016:0225 |
| Red Hat Enterprise Linux 6.6 Extended Update Support | glibc-0:2.12-1.149.el6_6.11 | Fixed | RHSA-2016:0225 |
| Red Hat Enterprise Linux 7 | glibc-0:2.17-106.el7_2.4 | Fixed | RHSA-2016:0176 |
| Red Hat Enterprise Linux 7.1 Extended Update Support | glibc-0:2.17-79.ael7b_1.4 | Fixed | RHSA-2016:0225 |
| Red Hat Enterprise Linux 4 | glibc | Not affected | n/a |
| Red Hat Enterprise Linux 5 | glibc | Not affected | n/a |
| Red Hat Enterprise Linux 6 | guest-images | Affected | n/a |
| Red Hat Enterprise Linux 7 | rhel-guest-image | Affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
After updating the glibc package on affected systems, it is strongly recommended to reboot the system or restart all the affected services. For more information please refer to: https://access.redhat.com/articles/2161461
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
8.1 HIGH NVD
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity High
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact High
Integrity Impact High
Availability Impact High
6.8 MEDIUM NVD
AV:N/AC:M/Au:N/C:P/I:P/A:P
Access Vector Network
Access Complexity Medium
Authentication None
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact Partial
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
90.99% 0.90987
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.90987
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (34 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 90.99% (0.90987) | 99.80th | v5 (v2026.06.15) |
| Sep 22, 2026 | 90.99% (0.90987) | 99.80th | v5 (v2026.06.15) |
| Sep 21, 2026 | 88.99% (0.88989) | 99.78th | v5 (v2026.06.15) |
| Sep 6, 2026 | 90.99% (0.90987) | 99.80th | v5 (v2026.06.15) |
| Sep 5, 2026 | 88.99% (0.88989) | 99.77th | v5 (v2026.06.15) |
| Aug 30, 2026 | 91.06% (0.91057) | 99.80th | v5 (v2026.06.15) |
| Aug 28, 2026 | 89.06% (0.89064) | 99.77th | v5 (v2026.06.15) |
| Aug 24, 2026 | 91.06% (0.91057) | 99.80th | v5 (v2026.06.15) |
| Aug 23, 2026 | 87.48% (0.87480) | 99.75th | v5 (v2026.06.15) |
| Jun 15, 2026 | 89.56% (0.89557) | 99.77th | v5 (v2026.06.15) |
| Oct 4, 2025 | 93.42% (0.93421) | 99.81th | v4 (v2025.03.14) |
| Oct 1, 2025 | 91.80% (0.91802) | 99.68th | v4 (v2025.03.14) |
| Sep 6, 2025 | 93.42% (0.93421) | 99.81th | v4 (v2025.03.14) |
| Sep 1, 2025 | 91.80% (0.91802) | 99.68th | v4 (v2025.03.14) |
| Aug 4, 2025 | 93.42% (0.93421) | 99.81th | v4 (v2025.03.14) |
| Aug 1, 2025 | 91.80% (0.91802) | 99.68th | v4 (v2025.03.14) |
| Jul 4, 2025 | 93.42% (0.93421) | 99.81th | v4 (v2025.03.14) |
| Jul 1, 2025 | 91.80% (0.91802) | 99.67th | v4 (v2025.03.14) |
| Jun 4, 2025 | 93.41% (0.93413) | 99.81th | v4 (v2025.03.14) |
| Jun 1, 2025 | 91.78% (0.91782) | 99.67th | v4 (v2025.03.14) |
| May 4, 2025 | 93.41% (0.93413) | 99.80th | v4 (v2025.03.14) |
| May 1, 2025 | 91.78% (0.91782) | 99.67th | v4 (v2025.03.14) |
| Mar 17, 2025 | 93.41% (0.93413) | 99.81th | v4 (v2025.03.14) |
| Dec 12, 2024 | 97.40% (0.97402) | 99.95th | v3 (v2023.03.01) |
| Mar 19, 2024 | 97.41% (0.97410) | 99.92th | v3 (v2023.03.01) |
| Feb 13, 2024 | 97.44% (0.97436) | 99.94th | v3 (v2023.03.01) |
| Jan 12, 2024 | 97.31% (0.97306) | 99.86th | v3 (v2023.03.01) |
| Dec 11, 2023 | 97.23% (0.97232) | 99.80th | v3 (v2023.03.01) |
| Oct 6, 2023 | 97.46% (0.97464) | 99.95th | v3 (v2023.03.01) |
| Mar 7, 2023 | 97.47% (0.97470) | 99.92th | v3 (v2023.03.01) |
| Mar 6, 2023 | 92.38% (0.92385) | 99.91th | v2 (v2022.01.01) |
| Feb 13, 2023 | 92.38% (0.92385) | 99.90th | v2 (v2022.01.01) |
| Feb 3, 2023 | 94.10% (0.94099) | 99.94th | v2 (v2022.01.01) |
| Feb 4, 2022 | 92.38% (0.92385) | 99.89th | v2 (v2022.01.01) |
Weaknesses (2)
References (78)
- http://fortiguard.com/advisory/glibc-getaddrinfo-stack-overflow x_refsource_CONFIRM
- http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177404.html vendor-advisoryx_refsource_FEDORA
- http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177412.html vendor-advisoryx_refsource_FEDORA
- http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00036.html vendor-advisoryx_refsource_SUSEThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00037.html vendor-advisoryx_refsource_SUSEThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00038.html vendor-advisoryx_refsource_SUSEThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00039.html vendor-advisoryx_refsource_SUSEThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00042.html vendor-advisoryx_refsource_SUSEThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00043.html vendor-advisoryx_refsource_SUSEThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00044.html vendor-advisoryx_refsource_SUSEThird Party Advisory
- http://marc.info/?l=bugtraq&m=145596041017029&w=2 vendor-advisoryx_refsource_HP
- http://marc.info/?l=bugtraq&m=145672440608228&w=2 vendor-advisoryx_refsource_HP
- http://marc.info/?l=bugtraq&m=145690841819314&w=2 vendor-advisoryx_refsource_HP
- http://marc.info/?l=bugtraq&m=145857691004892&w=2 vendor-advisoryx_refsource_HP
- http://marc.info/?l=bugtraq&m=146161017210491&w=2 vendor-advisoryx_refsource_HP
- http://packetstormsecurity.com/files/135802/glibc-getaddrinfo-Stack-Based-Buffer-Overflow.html x_refsource_MISC
- http://packetstormsecurity.com/files/154361/Cisco-Device-Hardcoded-Credentials-GNU-glibc-BusyBox.html x_refsource_MISC
- http://packetstormsecurity.com/files/164014/Moxa-Command-Injection-Cross-Site-Scripting-Vulnerable-Software.html x_refsource_MISC
- http://packetstormsecurity.com/files/167552/Nexans-FTTO-GigaSwitch-Outdated-Components-Hardcoded-Backdoor.html x_refsource_MISC
- http://rhn.redhat.com/errata/RHSA-2016-0175.html vendor-advisoryx_refsource_REDHAT
- http://rhn.redhat.com/errata/RHSA-2016-0176.html vendor-advisoryx_refsource_REDHATThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2016-0225.html vendor-advisoryx_refsource_REDHAT
- http://rhn.redhat.com/errata/RHSA-2016-0277.html vendor-advisoryx_refsource_REDHAT
- http://seclists.org/fulldisclosure/2019/Sep/7 mailing-listx_refsource_FULLDISC
- http://seclists.org/fulldisclosure/2021/Sep/0 mailing-listx_refsource_FULLDISC
- http://seclists.org/fulldisclosure/2022/Jun/36 mailing-listx_refsource_FULLDISC
- http://support.citrix.com/article/CTX206991 x_refsource_CONFIRM
- http://ubuntu.com/usn/usn-2900-1 vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- http://www.debian.org/security/2016/dsa-3480 vendor-advisoryx_refsource_DEBIAN
- http://www.debian.org/security/2016/dsa-3481 vendor-advisoryx_refsource_DEBIANThird Party Advisory
- http://www.fortiguard.com/advisory/glibc-getaddrinfo-stack-overflow x_refsource_CONFIRM
- http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20160304-01-glibc-en x_refsource_CONFIRM
- http://www.oracle.com/technetwork/security-advisory/cpuapr2016v3-2985753.html x_refsource_CONFIRMPatchThird Party Advisory
- http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html x_refsource_CONFIRM
- http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html x_refsource_CONFIRM
- http://www.securityfocus.com/bid/83265 vdb-entryx_refsource_BID
- http://www.securitytracker.com/id/1035020 vdb-entryx_refsource_SECTRACK
- http://www.vmware.com/security/advisories/VMSA-2016-0002.html x_refsource_CONFIRM
- https://access.redhat.com/articles/2161461 x_refsource_CONFIRMThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2015-7547 Vendor Advisory
- https://blogs.sophos.com/2016/02/24/utm-up2date-9-355-released/ x_refsource_CONFIRMThird Party Advisory
- https://blogs.sophos.com/2016/02/29/utm-up2date-9-319-released/ x_refsource_CONFIRMThird Party Advisory
- https://bto.bluecoat.com/security-advisory/sa114 x_refsource_CONFIRMThird Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1293532 x_refsource_CONFIRMIssue TrackingThird Party Advisory
- https://googleonlinesecurity.blogspot.com/2016/02/cve-2015-7547-glibc-getaddrinfo-stack.html x_refsource_MISC
- https://h20566.www2.hpe.com/hpsc/doc/public/display?docId=emr_na-c05028479 x_refsource_CONFIRMThird Party Advisory
- https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c04989404 x_refsource_CONFIRMThird Party Advisory
- https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05008367 x_refsource_CONFIRM
- https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05053211 x_refsource_CONFIRM
- https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05073516 x_refsource_CONFIRM
- https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05098877 x_refsource_CONFIRMThird Party Advisory
- https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05125672 x_refsource_CONFIRMThird Party Advisory
- https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05128937 x_refsource_CONFIRMThird Party Advisory
- https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05130958 x_refsource_CONFIRMThird Party Advisory
- https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05140858 x_refsource_CONFIRMThird Party Advisory
- https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05158380 x_refsource_CONFIRM
- https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05176716 x_refsource_CONFIRM
- https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05212266 x_refsource_CONFIRM
- https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05376917 x_refsource_CONFIRM
- https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05390722 x_refsource_CONFIRM
- https://help.ecostruxureit.com/display/public/UADCO8x/StruxureWare+Data+Center+Operation+Software+Vulnerability+Fixes x_refsource_CONFIRM
- https://ics-cert.us-cert.gov/advisories/ICSA-16-103-01 x_refsource_MISC
- https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA40161 x_refsource_CONFIRMThird Party Advisory
- https://kc.mcafee.com/corporate/index?page=content&id=SB10150 x_refsource_CONFIRMThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2015-7547
- https://seclists.org/bugtraq/2019/Sep/7 mailing-listx_refsource_BUGTRAQ
- https://security.gentoo.org/glsa/201602-02 vendor-advisoryx_refsource_GENTOOThird Party Advisory
- https://security.netapp.com/advisory/ntap-20160217-0002/ x_refsource_CONFIRM
- https://sourceware.org/bugzilla/show_bug.cgi?id=18665 x_refsource_CONFIRMIssue Tracking
- https://sourceware.org/ml/libc-alpha/2016-02/msg00416.html mailing-listx_refsource_MLISTMailing ListVendor Advisory
- https://support.f5.com/kb/en-us/solutions/public/k/47/sol47098834.html x_refsource_CONFIRMThird Party Advisory
- https://support.lenovo.com/us/en/product_security/len_5450 x_refsource_CONFIRM
- https://www.arista.com/en/support/advisories-notices/security-advisories/1255-security-advisory-17 x_refsource_MISC
- https://www.cve.org/CVERecord?id=CVE-2015-7547
- https://www.exploit-db.com/exploits/39454/ exploitx_refsource_EXPLOIT-DB
- https://www.exploit-db.com/exploits/40339/ exploitx_refsource_EXPLOIT-DB
- https://www.kb.cert.org/vuls/id/457759 third-party-advisoryx_refsource_CERT-VN
- https://www.tenable.com/security/research/tra-2017-08 x_refsource_MISC
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner redhat
Published Feb 18, 2016
Updated Aug 6, 2024
Reserved Sep 29, 2015
Link CVE-2015-7547
CISA Vulnrichment
Updated n/a