CVE-2016-4579
Libksba before 1.3.4 allows remote attackers to cause a denial of service (out-of-bounds read and...
CVE-2016-4579 is a high vulnerability (CVSS 7.5) in Gnupg Libksba, published May 13, 2016. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 3.33%, the 88th percentile. Fixed in libksba 1.3.4-3.
Libksba before 1.3.4 allows remote attackers to cause a denial of service (out-of-bounds read and crash) via unspecified vectors, related to the "returned length of the object from _ksba_ber_parse_tl."
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
What each source reports
NVD Score used
Libksba before 1.3.4 allows remote attackers to cause a denial of service (out-of-bounds read and crash) via unspecified vectors, related to the "returned length of the object from _ksba_ber_parse_tl."
- Record
CVE-2016-4579- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:N/I:N/A:P - Weakness
- CWE-20
- Updated
- 2026-11-02
CVE List No score
Libksba before 1.3.4 allows remote attackers to cause a denial of service (out-of-bounds read and crash) via unspecified vectors, related to the "returned length of the object from _ksba_ber_parse_tl."
- Record
CVE-2016-4579- Updated
- 2026-11-02
EUVDEUVD-2016-5565 No score
Libksba before 1.3.4 allows remote attackers to cause a denial of service (out-of-bounds read and crash) via unspecified vectors, related to the "returned length of the object from _ksba_ber_parse_tl."
- Record
EUVD-2016-5565- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-rjw4-277h-vv44
Libksba before 1.3.4 allows remote attackers to cause a denial of service (out-of-bounds read and...
Libksba before 1.3.4 allows remote attackers to cause a denial of service (out-of-bounds read and crash) via unspecified vectors, related to the "returned length of the object from _ksba_ber_parse_tl."
- Record
GHSA-rjw4-277h-vv44- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-20
- Updated
- 2026-11-02
OSVBELL-CVE-2016-4579
CVE-2016-4579 does not affect BellSoft software
- Record
BELL-CVE-2016-4579- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSV
Libksba before 1.3.4 allows remote attackers to cause a denial of service (out-of-bounds read and crash) via unspecified vectors, related to the "returned length of the object from _ksba_ber_parse_tl."
- Record
CVE-2016-4579- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
Show 9 moreShow less
OSVDEBIAN-CVE-2016-4579
Libksba before 1.3.4 allows remote attackers to cause a denial of service (out-of-bounds read and crash) via unspecified vectors, related to the "returned length of the object from _ksba_ber_parse_tl."
- Record
DEBIAN-CVE-2016-4579- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVUBUNTU-CVE-2016-4579
Libksba before 1.3.4 allows remote attackers to cause a denial of service (out-of-bounds read and crash) via unspecified vectors, related to the "returned length of the object from _ksba_ber_parse_tl."
- Record
UBUNTU-CVE-2016-4579- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVMGASA-2016-0181 No score
Updated libksba packages fix security vulnerabilities
Updated libksba packages fix security vulnerabilities:
An out-of-bounds read access in _ksba_dn_to_str() in libksba 1.3.3, due to an incomplete fix for CVE-2016-4356, could result in denial of service (CVE-2016-4574).
In liksba 1.3.3, the returned length of the object from _ksba_ber_parse_tl() (ti.length) was not always checked against the actual buffer length, thus leading to a read access after the end of the buffer, which could result in denial of service (CVE-2016-4579).
- Record
MGASA-2016-0181- Updated
- 2026-11-02
OSVopenSUSE-SU-2024:10126-1 No score
libksba-devel-1.3.5-1.3 on GA media
These are all security issues fixed in the libksba-devel-1.3.5-1.3 package on the GA media of openSUSE Tumbleweed.
- Record
openSUSE-SU-2024:10126-1- Updated
- 2026-11-02
OSVSUSE-SU-2016:1509-1 No score
Security update for libksba
This update for libksba fixes the following issues:
- CVE-2016-4579: Out-of-bounds read in _ksba_ber_parse_tl()
- CVE-2016-4574: two OOB read access bugs (remote DoS) (bsc#979261)
Also adding reliability fixes from v1.3.4.
- Record
SUSE-SU-2016:1509-1- Updated
- 2026-11-02
OSVSUSE-SU-2016:1510-1 No score
Security update for libksba
This update for libksba fixes the following issues:
- CVE-2016-4579: Out-of-bounds read in _ksba_ber_parse_tl()
- CVE-2016-4574: two OOB read access bugs (remote DoS) (bsc#979261)
Also adding reliability fixes from v1.3.4.
- Record
SUSE-SU-2016:1510-1- 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-2982-1 No score
libksba vulnerabilities
Hanno Böck discovered that Libksba incorrectly handled decoding certain BER data. An attacker could use this issue to cause Libksba to crash, resulting in a denial of service. This issue only applied to Ubuntu 12.04 LTS and Ubuntu 14.04 LTS. (CVE-2016-4353)
Hanno Böck discovered that Libksba incorrectly handled decoding certain BER data. An attacker could use this issue to cause Libksba to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only applied to Ubuntu 12.04 LTS and Ubuntu 14.04 LTS. (CVE-2016-4354, CVE-2016-4355)
Hanno Böck discovered that Libksba incorrectly handled incorrect utf-8 strings when decoding certain DN data. An attacker could use this issue to cause Libksba to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only applied to Ubuntu 12.04 LTS and Ubuntu 14.04 LTS. (CVE-2016-4356)
Pascal Cuoq discovered that Libksba incorrectly handled incorrect utf-8 strings when decoding certain DN data. An attacker could use this issue to cause Libksba to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2016-4574)
Pascal Cuoq discovered that Libksba incorrectly handled decoding certain data. An attacker could use this issue to cause Libksba to crash, resulting in a denial of service. (CVE-2016-4579)
- Record
USN-2982-1- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
libksbaDebian:12 |
before 1.3.4-3 | 1.3.4-3 |
libksbaDebian:13 |
before 1.3.4-3 | 1.3.4-3 |
libksbaDebian:14 |
before 1.3.4-3 | 1.3.4-3 |
libksbaDebian:7 |
before 1.2.0-2+deb7u2, plus listed versions 1.2.0-21.2.0-2+deb7u1 |
1.2.0-2+deb7u2 |
libksbaMageia:5 |
before 1.3.4-1.mga5 | 1.3.4-1.mga5 |
libksbaSUSE:Linux Enterprise Software Development Kit 11 SP4 |
before 1.0.4-1.25.1 | 1.0.4-1.25.1 |
libksbaSUSE:Linux Enterprise Server 11 SP4 |
before 1.0.4-1.25.1 | 1.0.4-1.25.1 |
libksbaSUSE:Linux Enterprise Server for SAP Applications 11 SP4 |
before 1.0.4-1.25.1 | 1.0.4-1.25.1 |
libksbaSUSE:Linux Enterprise Desktop 12 |
before 1.3.0-23.1 | 1.3.0-23.1 |
libksbaSUSE:Linux Enterprise Desktop 12 SP1 |
before 1.3.0-23.1 | 1.3.0-23.1 |
Show 9 moreShow less
| Package | Affected | Fixed |
|---|---|---|
libksbaSUSE:Linux Enterprise Software Development Kit 12 |
before 1.3.0-23.1 | 1.3.0-23.1 |
libksbaSUSE:Linux Enterprise Software Development Kit 12 SP1 |
before 1.3.0-23.1 | 1.3.0-23.1 |
libksbaSUSE:Linux Enterprise Server 12 |
before 1.3.0-23.1 | 1.3.0-23.1 |
libksbaSUSE:Linux Enterprise Server for SAP Applications 12 |
before 1.3.0-23.1 | 1.3.0-23.1 |
libksbaSUSE:Linux Enterprise Server 12 SP1 |
before 1.3.0-23.1 | 1.3.0-23.1 |
libksbaSUSE:Linux Enterprise Server for SAP Applications 12 SP1 |
before 1.3.0-23.1 | 1.3.0-23.1 |
libksbaUbuntu:14.04:LTS |
before 1.3.0-3ubuntu0.14.04.2, plus listed versions 1.3.0-21.3.0-2ubuntu11.3.0-31.3.0-3ubuntu0.14.04.1 |
1.3.0-3ubuntu0.14.04.2 |
libksbaUbuntu:16.04:LTS |
before 1.3.3-1ubuntu0.16.04.1, plus listed versions 1.3.3-1 |
1.3.3-1ubuntu0.16.04.1 |
libksbaopenSUSE:Tumbleweed |
before 1.3.5-1.3 | 1.3.5-1.3 |
History
| When | Changed | Sources |
|---|---|---|
| 2026-11-03 | aliases | EUVD |
| 2026-11-02 | created | CVE List, GitHub Advisories, NVD, OSV |
References
ubuntu.com/usn/USN-2982-1
openwall.com/lists/oss-security/2016/05/11/10
lists.opensuse.org/opensuse-updates/2016-06/msg00028.html
security.gentoo.org/glsa/201706-22
git.gnupg.org/cgi-bin/gitweb.cgi?p=libksba.git%3Ba=commit%3Bh=a7eed17a0b2a1c09ef986f3b4b323cd31cea2b64
Show 169 moreShow less
nvd.nist.gov/vuln/detail/CVE-2016-4579
github.com/advisories/GHSA-rjw4-277h-vv44
docs.bell-sw.com/security/cves/CVE-2016-4579
security-tracker.debian.org/tracker/CVE-2016-4579
advisories.mageia.org/MGASA-2016-0181.html
bugs.mageia.org/show_bug.cgi?id=18437
openwall.com/lists/oss-security/2016/05/10/4
suse.com/support/update/announcement/2016/suse-su-20161509-1
bugzilla.suse.com/979261
ubuntu.com/security/CVE-2016-4579
cve.org/CVERecord?id=CVE-2016-4579