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CVE-2016-1234

Stack-based buffer overflow in the glob implementation in GNU C Library (aka glibc) before 2.24,...

7.5 HighFix available

Stack-based buffer overflow in the glob implementation in GNU C Library (aka glibc) before 2.24, when GLOB_ALTDIRFUNC is used, allows context-dependent attackers to cause a denial of service (crash) via a long name.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
None
Integrity
None
Availability
High

Exploit likelihood

5.44%Up 3.9 points since Feb 4, 2022
90%50%10%1%

What each source reports

NVD Score used 7.5

Stack-based buffer overflow in the glob implementation in GNU C Library (aka glibc) before 2.24, when GLOB_ALTDIRFUNC is used, allows context-dependent attackers to cause a denial of service (crash) via a long name.

Record
CVE-2016-1234
CVSS 3.0
7.5 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0
5.0 MediumAV:N/AC:L/Au:N/C:N/I:N/A:P
Weakness
CWE-119
Updated
2026-11-02
CVE List No score

Stack-based buffer overflow in the glob implementation in GNU C Library (aka glibc) before 2.24, when GLOB_ALTDIRFUNC is used, allows context-dependent attackers to cause a denial of service (crash) via a long name.

Record
CVE-2016-1234
Updated
2026-11-02
EUVDEUVD-2016-2335 No score

Stack-based buffer overflow in the glob implementation in GNU C Library (aka glibc) before 2.24, when GLOB_ALTDIRFUNC is used, allows context-dependent attackers to cause a denial of service (crash) via a long name.

Record
EUVD-2016-2335
Updated
2026-11-03
GitHub AdvisoriesGHSA-mphv-4vqv-3v34 7.5

Stack-based buffer overflow in the glob implementation in GNU C Library (aka glibc) before 2.24,...

Stack-based buffer overflow in the glob implementation in GNU C Library (aka glibc) before 2.24, when GLOB_ALTDIRFUNC is used, allows context-dependent attackers to cause a denial of service (crash) via a long name.

Record
GHSA-mphv-4vqv-3v34
CVSS 3.0
7.5 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness
CWE-119
Updated
2026-11-02
OSVBELL-CVE-2016-1234 7.5

CVE-2016-1234 does not affect BellSoft software

Record
BELL-CVE-2016-1234
CVSS 3.0
7.5 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSV 7.5

Stack-based buffer overflow in the glob implementation in GNU C Library (aka glibc) before 2.24, when GLOB_ALTDIRFUNC is used, allows context-dependent attackers to cause a denial of service (crash) via a long name.

Record
CVE-2016-1234
CVSS 3.0
7.5 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
Show 10 moreShow less
OSVDEBIAN-CVE-2016-1234 7.5

Stack-based buffer overflow in the glob implementation in GNU C Library (aka glibc) before 2.24, when GLOB_ALTDIRFUNC is used, allows context-dependent attackers to cause a denial of service (crash) via a long name.

Record
DEBIAN-CVE-2016-1234
CVSS 3.0
7.5 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVUBUNTU-CVE-2016-1234 7.5

Stack-based buffer overflow in the glob implementation in GNU C Library (aka glibc) before 2.24, when GLOB_ALTDIRFUNC is used, allows context-dependent attackers to cause a denial of service (crash) via a long name.

Record
UBUNTU-CVE-2016-1234
CVSS 3.0
7.5 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVMGASA-2016-0206 No score

Updated glibc packages fix security vulnerabilities

Updated glibc packages fix security vulnerabilities:

It was found that glob implementation in glibc does not correctly handle overlong names in struct dirent buffers when GLOB_ALTDIRFUNC is used, causing large stack-based buffer overflow with controlled length and content (CVE-2016-1234).

A stack overflow vulnerability (unbounded allocation) in _nss_dns_getnetbyname_r function was found (CVE-2016-3075).

stack (frame) overflow in getaddrinfo() when called with AF_INET, AF_INET6 (incomplete fix for CVE-2013-4458) (CVE-2016-3706).

Record
MGASA-2016-0206
Updated
2026-11-02
OSVopenSUSE-SU-2024:10154-1 No score

glibc-2.24-2.3 on GA media

These are all security issues fixed in the glibc-2.24-2.3 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2024:10154-1
Updated
2026-11-02
OSVSUSE-SU-2016:1721-1 No score

Security update for glibc

This update for glibc provides the following fixes:

  • Increase DTV_SURPLUS limit. (bsc#968787)
  • Do not copy d_name field of struct dirent. (CVE-2016-1234, bsc#969727)
  • Fix memory leak in _nss_dns_gethostbyname4_r. (bsc#973010)
  • Fix stack overflow in _nss_dns_getnetbyname_r. (CVE-2016-3075, bsc#973164)
  • Fix malloc performance regression from SLE 11. (bsc#975930)
  • Fix getaddrinfo stack overflow in hostent conversion. (CVE-2016-3706, bsc#980483)
  • Do not use alloca in clntudp_call (CVE-2016-4429, bsc#980854)
Record
SUSE-SU-2016:1721-1
Updated
2026-11-02
OSVSUSE-SU-2016:1733-1 No score

Security update for glibc

This update for glibc provides the following fixes:

  • Increase DTV_SURPLUS limit. (bsc#968787)
  • Do not copy d_name field of struct dirent. (CVE-2016-1234, bsc#969727)
  • Fix memory leak in _nss_dns_gethostbyname4_r. (bsc#973010)
  • Fix stack overflow in _nss_dns_getnetbyname_r. (CVE-2016-3075, bsc#973164)
  • Fix malloc performance regression from SLE 11. (bsc#975930)
  • Fix getaddrinfo stack overflow in hostent conversion. (CVE-2016-3706, bsc#980483)
  • Do not use alloca in clntudp_call. (CVE-2016-4429, bsc#980854)
  • Remove mtrace.1, now included in the man-pages package. (bsc#967190)
Record
SUSE-SU-2016:1733-1
Updated
2026-11-02
OSVSUSE-SU-2016:2156-1 No score

Security update for glibc

This update for glibc fixes the following issues:

  • Drop old fix that could break services that start before IPv6 is up. (bsc#931399)
  • Do not copy d_name field of struct dirent. (CVE-2016-1234, bsc#969727)
  • Fix memory leak in _nss_dns_gethostbyname4_r. (bsc#973010)
  • Relocate DSOs in dependency order, fixing a potential crash during symbol relocation phase. (bsc#986302)
  • Fix nscd assertion failure in gc. (bsc#965699)
  • Fix stack overflow in _nss_dns_getnetbyname_r. (CVE-2016-3075, bsc#973164)
  • Fix getaddrinfo stack overflow in hostent conversion. (CVE-2016-3706, bsc#980483)
  • Do not use alloca in clntudp_call. (CVE-2016-4429, bsc#980854)
Record
SUSE-SU-2016:2156-1
Updated
2026-11-02
OSVSUSE-SU-2017:2699-1 No score

Security update for SLES 12 Docker image

The SUSE Linux Enterprise Server 12 container image has been updated to include security and stability fixes.

The following issues related to building of the container images have been fixed:

  • Included krb5 package to avoid the inclusion of krb5-mini which gets selected as a dependency by the Build Service solver. (bsc#1056193)
  • Do not install recommended packages when building container images. (bsc#975726)

A number of security issues that have been already fixed by updates released for SUSE Linux Enterprise Server 12 are now included in the base image. A package/CVE cross-reference is available below.

pam:

  • CVE-2015-3238

libtasn1:

  • CVE-2015-3622
  • CVE-2016-4008

libidn:

  • CVE-2015-2059
  • CVE-2015-8948
  • CVE-2016-6261
  • CVE-2016-6262
  • CVE-2016-6263

zlib:

  • CVE-2016-9840
  • CVE-2016-9841
  • CVE-2016-9842
  • CVE-2016-9843

curl:

  • CVE-2016-5419
  • CVE-2016-5420
  • CVE-2016-5421
  • CVE-2016-7141
  • CVE-2016-7167
  • CVE-2016-8615
  • CVE-2016-8616
  • CVE-2016-8617
  • CVE-2016-8618
  • CVE-2016-8619
  • CVE-2016-8620
  • CVE-2016-8621
  • CVE-2016-8622
  • CVE-2016-8623
  • CVE-2016-8624
  • CVE-2016-9586
  • CVE-2017-1000100
  • CVE-2017-1000101
  • CVE-2017-7407

openssl:

  • CVE-2016-2105
  • CVE-2016-2106
  • CVE-2016-2107
  • CVE-2016-2108
  • CVE-2016-2109
  • CVE-2016-2177
  • CVE-2016-2178
  • CVE-2016-2179
  • CVE-2016-2180
  • CVE-2016-2181
  • CVE-2016-2182
  • CVE-2016-2183
  • CVE-2016-6302
  • CVE-2016-6303
  • CVE-2016-6304
  • CVE-2016-6306

libxml2:

  • CVE-2014-0191
  • CVE-2015-8806
  • CVE-2016-1762
  • CVE-2016-1833
  • CVE-2016-1834
  • CVE-2016-1835
  • CVE-2016-1837
  • CVE-2016-1838
  • CVE-2016-1839
  • CVE-2016-1840
  • CVE-2016-2073
  • CVE-2016-3627
  • CVE-2016-3705
  • CVE-2016-4447
  • CVE-2016-4448
  • CVE-2016-4449
  • CVE-2016-4483
  • CVE-2016-4658
  • CVE-2016-9318
  • CVE-2016-9597
  • CVE-2017-9047
  • CVE-2017-9048
  • CVE-2017-9049
  • CVE-2017-9050

util-linux:

  • CVE-2015-5218
  • CVE-2016-5011
  • CVE-2017-2616

cracklib:

  • CVE-2016-6318

systemd:

  • CVE-2014-9770
  • CVE-2015-8842
  • CVE-2016-7796

pcre:

  • CVE-2014-8964
  • CVE-2015-2325
  • CVE-2015-2327
  • CVE-2015-2328
  • CVE-2015-3210
  • CVE-2015-3217
  • CVE-2015-5073
  • CVE-2015-8380
  • CVE-2015-8381
  • CVE-2015-8382
  • CVE-2015-8383
  • CVE-2015-8384
  • CVE-2015-8385
  • CVE-2015-8386
  • CVE-2015-8387
  • CVE-2015-8388
  • CVE-2015-8389
  • CVE-2015-8390
  • CVE-2015-8391
  • CVE-2015-8392
  • CVE-2015-8393
  • CVE-2015-8394
  • CVE-2015-8395
  • CVE-2016-1283
  • CVE-2016-3191

appamor:

  • CVE-2017-6507

bash:

  • CVE-2014-6277
  • CVE-2014-6278
  • CVE-2016-0634
  • CVE-2016-7543

cpio:

  • CVE-2016-2037

glibc:

  • CVE-2016-1234
  • CVE-2016-3075
  • CVE-2016-3706
  • CVE-2016-4429
  • CVE-2017-1000366

perl:

  • CVE-2015-8853
  • CVE-2016-1238
  • CVE-2016-2381
  • CVE-2016-6185

libssh2_org:

  • CVE-2016-0787

expat:

  • CVE-2012-6702
  • CVE-2015-1283
  • CVE-2016-0718
  • CVE-2016-5300
  • CVE-2016-9063
  • CVE-2017-9233

ncurses:

  • CVE-2017-10684
  • CVE-2017-10685
  • CVE-2017-11112
  • CVE-2017-11113

libksba:

  • CVE-2016-4574
  • CVE-2016-4579

libgcrypt:

  • CVE-2015-7511
  • CVE-2016-6313
  • CVE-2017-7526

dbus-1:

  • CVE-2014-7824
  • CVE-2015-0245

Finally, the following packages received non-security fixes:

  • augeas
  • bzip2
  • ca-certificates-mozilla
  • coreutils
  • cryptsetup
  • cyrus-sasl
  • dirmngr
  • e2fsprogs
  • findutils
  • gpg2
  • insserv-compat
  • kmod
  • libcap
  • libsolv
  • libzypp
  • openldap2
  • p11-kit
  • permissions
  • procps
  • rpm
  • sed
  • shadow
  • zypper
Record
SUSE-SU-2017:2699-1
Updated
2026-11-02
OSVSUSE-SU-2017:2700-1 No score

Security update for SLES 12-SP1 Docker image

The SUSE Linux Enterprise Server 12 SP1 container image has been updated to include security and stability fixes.

The following issues related to building of the container images have been fixed:

  • Included krb5 package to avoid the inclusion of krb5-mini which gets selected as a dependency by the Build Service solver. (bsc#1056193)
  • Do not install recommended packages when building container images. (bsc#975726)

A number of security issues that have been already fixed by updates released for SUSE Linux Enterprise Server 12 SP1 are now included in the base image. A package/CVE cross-reference is available below.

pam:

  • CVE-2015-3238

libtasn1:

  • CVE-2015-3622
  • CVE-2016-4008

expat:

expat:

  • CVE-2012-6702
  • CVE-2015-1283
  • CVE-2016-0718
  • CVE-2016-5300
  • CVE-2016-9063
  • CVE-2017-9233

libidn:

  • CVE-2015-2059
  • CVE-2015-8948
  • CVE-2016-6261
  • CVE-2016-6262
  • CVE-2016-6263

zlib:

  • CVE-2016-9840
  • CVE-2016-9841
  • CVE-2016-9842
  • CVE-2016-9843

curl:

  • CVE-2016-5419
  • CVE-2016-5420
  • CVE-2016-5421
  • CVE-2016-7141
  • CVE-2016-7167
  • CVE-2016-8615
  • CVE-2016-8616
  • CVE-2016-8617
  • CVE-2016-8618
  • CVE-2016-8619
  • CVE-2016-8620
  • CVE-2016-8621
  • CVE-2016-8622
  • CVE-2016-8623
  • CVE-2016-8624
  • CVE-2016-9586
  • CVE-2017-1000100
  • CVE-2017-1000101
  • CVE-2017-7407

openssl:

  • CVE-2016-2105
  • CVE-2016-2106
  • CVE-2016-2107
  • CVE-2016-2108
  • CVE-2016-2109
  • CVE-2016-2177
  • CVE-2016-2178
  • CVE-2016-2179
  • CVE-2016-2180
  • CVE-2016-2181
  • CVE-2016-2182
  • CVE-2016-2183
  • CVE-2016-6302
  • CVE-2016-6303
  • CVE-2016-6304
  • CVE-2016-6306
  • CVE-2016-7056
  • CVE-2016-8610
  • CVE-2017-3731

cracklib:

  • CVE-2016-6318

pcre:

  • CVE-2014-8964
  • CVE-2015-2325
  • CVE-2015-2327
  • CVE-2015-2328
  • CVE-2015-3210
  • CVE-2015-3217
  • CVE-2015-5073
  • CVE-2015-8380
  • CVE-2015-8381
  • CVE-2015-8382
  • CVE-2015-8383
  • CVE-2015-8384
  • CVE-2015-8385
  • CVE-2015-8386
  • CVE-2015-8387
  • CVE-2015-8388
  • CVE-2015-8389
  • CVE-2015-8390
  • CVE-2015-8391
  • CVE-2015-8392
  • CVE-2015-8393
  • CVE-2015-8394
  • CVE-2015-8395
  • CVE-2016-1283
  • CVE-2016-3191

appamor:

  • CVE-2017-6507

bash:

  • CVE-2014-6277
  • CVE-2014-6278
  • CVE-2016-0634
  • CVE-2016-7543

cpio:

  • CVE-2016-2037

glibc:

  • CVE-2016-1234
  • CVE-2016-3075
  • CVE-2016-3706
  • CVE-2016-4429
  • CVE-2017-1000366

perl:

  • CVE-2015-8853
  • CVE-2016-1238
  • CVE-2016-2381
  • CVE-2016-6185

libssh2_org:

  • CVE-2016-0787

util-linux:

  • CVE-2016-5011
  • CVE-2017-2616

ncurses:

  • CVE-2017-10684
  • CVE-2017-10685
  • CVE-2017-11112
  • CVE-2017-11113

libksba:

  • CVE-2016-4574
  • CVE-2016-4579

libxml2:

  • CVE-2014-0191
  • CVE-2015-8806
  • CVE-2016-1762
  • CVE-2016-1833
  • CVE-2016-1834
  • CVE-2016-1835
  • CVE-2016-1837
  • CVE-2016-1838
  • CVE-2016-1839
  • CVE-2016-1840
  • CVE-2016-2073
  • CVE-2016-3627
  • CVE-2016-3705
  • CVE-2016-4447
  • CVE-2016-4448
  • CVE-2016-4449
  • CVE-2016-4483
  • CVE-2016-4658
  • CVE-2016-9318
  • CVE-2016-9597
  • CVE-2017-9047
  • CVE-2017-9048
  • CVE-2017-9049
  • CVE-2017-9050

libgcrypt:

  • CVE-2015-7511
  • CVE-2016-6313
  • CVE-2017-7526

update-alternatives:

  • CVE-2015-0860

systemd:

  • CVE-2014-9770
  • CVE-2015-8842
  • CVE-2016-7796

dbus-1:

  • CVE-2014-7824
  • CVE-2015-0245

Finally, the following packages received non-security fixes:

  • augeas
  • bzip2
  • ca-certificates-mozilla
  • coreutils
  • cryptsetup
  • cyrus-sasl
  • dirmngr
  • e2fsprogs
  • findutils
  • gpg2
  • insserv-compat
  • kmod
  • libcap
  • libsolv
  • libzypp
  • lua51
  • lvm2
  • netcfg
  • p11-kit
  • permissions
  • procps
  • rpm
  • sed
  • sg3_utils
  • shadow
  • zypper
Record
SUSE-SU-2017:2700-1
Updated
2026-11-02
OSVUSN-3239-1 No score

eglibc, glibc vulnerabilities

It was discovered that the GNU C Library incorrectly handled the strxfrm() function. An attacker could use this issue to cause a denial of service or possibly execute arbitrary code. This issue only affected Ubuntu 12.04 LTS and Ubuntu 14.04 LTS. (CVE-2015-8982)

It was discovered that an integer overflow existed in the _IO_wstr_overflow() function of the GNU C Library. An attacker could use this to cause a denial of service or possibly execute arbitrary code. This issue only affected Ubuntu 12.04 LTS and Ubuntu 14.04 LTS. (CVE-2015-8983)

It was discovered that the fnmatch() function in the GNU C Library did not properly handle certain malformed patterns. An attacker could use this to cause a denial of service. This issue only affected Ubuntu 12.04 LTS and Ubuntu 14.04 LTS. (CVE-2015-8984)

Alexander Cherepanov discovered a stack-based buffer overflow in the glob implementation of the GNU C Library. An attacker could use this to specially craft a directory layout and cause a denial of service. (CVE-2016-1234)

Florian Weimer discovered a NULL pointer dereference in the DNS resolver of the GNU C Library. An attacker could use this to cause a denial of service. (CVE-2015-5180)

Michael Petlan discovered an unbounded stack allocation in the getaddrinfo() function of the GNU C Library. An attacker could use this to cause a denial of service. (CVE-2016-3706)

Aldy Hernandez discovered an unbounded stack allocation in the sunrpc implementation in the GNU C Library. An attacker could use this to cause a denial of service. (CVE-2016-4429)

Tim Ruehsen discovered that the getaddrinfo() implementation in the GNU C Library did not properly track memory allocations. An attacker could use this to cause a denial of service. This issue only affected Ubuntu 16.04 LTS. (CVE-2016-5417)

Andreas Schwab discovered that the GNU C Library on ARM 32-bit platforms did not properly set up execution contexts. An attacker could use this to cause a denial of service. (CVE-2016-6323)

Record
USN-3239-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
glibc
Debian:12
 before 2.22-8
2.22-8
glibc
Debian:13
 before 2.22-8
2.22-8
glibc
Debian:14
 before 2.22-8
2.22-8
eglibc
Debian:7
 before 2.13-38+deb7u11, plus listed versions
2.13-382.13-38+deb7u12.13-38+deb7u102.13-38+deb7u22.13-38+deb7u3
Show 6 moreShow less
2.13-38+deb7u42.13-38+deb7u52.13-38+deb7u62.13-38+deb7u72.13-38+deb7u82.13-38+deb7u9
2.13-38+deb7u11
glibc
Mageia:5
 before 2.20-22.mga5
2.20-22.mga5
glibc
SUSE:Linux Enterprise Desktop 12
 before 2.19-22.16.2
2.19-22.16.2
glibc
SUSE:Linux Enterprise Software Development Kit 12
 before 2.19-22.16.2
2.19-22.16.2
glibc
SUSE:Linux Enterprise Server 12
 before 2.19-22.16.2
2.19-22.16.2
glibc
SUSE:Linux Enterprise Server for SAP Applications 12
 before 2.19-22.16.2
2.19-22.16.2
glibc
SUSE:Linux Enterprise Desktop 12 SP1
 before 2.19-38.2
2.19-38.2
Show 9 moreShow less
Affected packages
PackageAffectedFixed
glibc
SUSE:Linux Enterprise Software Development Kit 12 SP1
 before 2.19-38.2
2.19-38.2
glibc
SUSE:Linux Enterprise Server 12 SP1
 before 2.19-38.2
2.19-38.2
glibc
SUSE:Linux Enterprise Server for SAP Applications 12 SP1
 before 2.19-38.2
2.19-38.2
glibc
SUSE:Linux Enterprise Software Development Kit 11 SP4
 before 2.11.3-17.102.1
2.11.3-17.102.1
glibc
SUSE:Linux Enterprise Server 11 SP4
 before 2.11.3-17.102.1
2.11.3-17.102.1
glibc
SUSE:Linux Enterprise Server for SAP Applications 11 SP4
 before 2.11.3-17.102.1
2.11.3-17.102.1
eglibc
Ubuntu:14.04:LTS
 before 2.19-0ubuntu6.10, plus listed versions
2.17-93ubuntu42.18-0ubuntu12.18-0ubuntu22.18-0ubuntu42.18-0ubuntu5
Show 15 moreShow less
2.18-0ubuntu62.18-0ubuntu72.19-0ubuntu22.19-0ubuntu32.19-0ubuntu42.19-0ubuntu52.19-0ubuntu62.19-0ubuntu6.12.19-0ubuntu6.32.19-0ubuntu6.42.19-0ubuntu6.52.19-0ubuntu6.62.19-0ubuntu6.72.19-0ubuntu6.82.19-0ubuntu6.9
2.19-0ubuntu6.10
glibc
Ubuntu:16.04:LTS
 before 2.23-0ubuntu6, plus listed versions
2.21-0ubuntu42.21-0ubuntu52.21-0ubuntu62.23-0ubuntu12.23-0ubuntu22.23-0ubuntu32.23-0ubuntu42.23-0ubuntu5
2.23-0ubuntu6
glibc
openSUSE:Tumbleweed
 before 2.24-2.3
2.24-2.3

History

History
RecordedChangedSources
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2016-1234 is a high vulnerability (CVSS 7.5) in Gnu Glibc, published May 23, 2016. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 5.44%, the 92nd percentile. Fixed in glibc 2.22-8.

References

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