CVE-2016-4574
published 2016-06-13CVE-2016-4574: Off-by-one error in the append_utf8_value function in the DN decoder (dn.c) in Libksba before 1.3.4 allows remote attackers to cause a denial of service…
PriorityP433high7.5CVSS 3.0
AVNACLPRNUINSUCNINAH
EPSS
2.76%
84.6th percentile
Off-by-one error in the append_utf8_value function in the DN decoder (dn.c) in Libksba before 1.3.4 allows remote attackers to cause a denial of service (out-of-bounds read) via invalid utf-8 encoded data. NOTE: this vulnerability exists because of an incomplete fix for CVE-2016-4356.
Affected
14 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| debian | libksba | < libksba 1.3.4-3 (bookworm) | libksba 1.3.4-3 (bookworm) |
| gnupg | libksba | <= 1.3.3 | — |
| gnupg | libksba | >= 0 < 1.3.4-3 | 1.3.4-3 |
| gnupg | libksba | >= 0 < 1.3.4-3 | 1.3.4-3 |
| gnupg | libksba | >= 0 < 1.3.4-3 | 1.3.4-3 |
| gnupg | libksba | >= 0 < 1.3.4-3 | 1.3.4-3 |
| gnupg | libksba | >= 0 < 1.3.0-3ubuntu0.14.04.2 | 1.3.0-3ubuntu0.14.04.2 |
| gnupg | libksba | >= 0 < 1.3.3-1ubuntu0.16.04.1 | 1.3.3-1ubuntu0.16.04.1 |
| opensuse | leap | — | — |
| opensuse | opensuse | — | — |
CVSS provenance
nvdv3.07.5HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
nvdv2.05.0MEDIUMAV:N/AC:L/Au:N/C:N/I:N/A:P
osv7.5HIGH
vendor_debian7.5HIGH
vendor_redhat7.5HIGH
vendor_ubuntu7.5HIGH
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GHSA
GHSA-986h-5j8j-hgfc: Off-by-one error in the append_utf8_value function in the DN decoder (dn
ghsa_unreviewed·2022-05-13·CVSS 7.5
CVE-2016-4574 [HIGH] GHSA-986h-5j8j-hgfc: Off-by-one error in the append_utf8_value function in the DN decoder (dn
Off-by-one error in the append_utf8_value function in the DN decoder (dn.c) in Libksba before 1.3.4 allows remote attackers to cause a denial of service (out-of-bounds read) via invalid utf-8 encoded data. NOTE: this vulnerability exists because of an incomplete fix for CVE-2016-4356.
OSV
CVE-2016-4574: Off-by-one error in the append_utf8_value function in the DN decoder (dn
osv·2016-06-13·CVSS 7.5
CVE-2016-4574 [HIGH] CVE-2016-4574: Off-by-one error in the append_utf8_value function in the DN decoder (dn
Off-by-one error in the append_utf8_value function in the DN decoder (dn.c) in Libksba before 1.3.4 allows remote attackers to cause a denial of service (out-of-bounds read) via invalid utf-8 encoded data. NOTE: this vulnerability exists because of an incomplete fix for CVE-2016-4356.
OSV
libksba vulnerabilities
osv·2016-05-17·CVSS 7.5
CVE-2016-4353 [HIGH] libksba vulnerabilities
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
Ubuntu
Libksba vulnerabilities
vendor_ubuntu·2016-05-17·CVSS 7.5
CVE-2016-4353 [HIGH] Libksba vulnerabilities
Title: Libksba vulnerabilities
Summary: Libksba could be made to crash or run programs if it decoded specially
crafted data.
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
Red Hat
libksba: Incomplete fix for CVE-2016-4356
vendor_redhat·2016-05-10·CVSS 7.5
CVE-2016-4574 [HIGH] CWE-172 libksba: Incomplete fix for CVE-2016-4356
libksba: Incomplete fix for CVE-2016-4356
Off-by-one error in the append_utf8_value function in the DN decoder (dn.c) in Libksba before 1.3.4 allows remote attackers to cause a denial of service (out-of-bounds read) via invalid utf-8 encoded data. NOTE: this vulnerability exists because of an incomplete fix for CVE-2016-4356.
Package: libksba (Red Hat Enterprise Linux 5) - Will not fix
Package: libksba (Red Hat Enterprise Linux 6) - Will not fix
Package: libksba (Red Hat Enterprise Linux 7) - Will not fix
Debian
CVE-2016-4574: libksba - Off-by-one error in the append_utf8_value function in the DN decoder (dn.c) in L...
vendor_debian·2016·CVSS 7.5
CVE-2016-4574 [HIGH] CVE-2016-4574: libksba - Off-by-one error in the append_utf8_value function in the DN decoder (dn.c) in L...
Off-by-one error in the append_utf8_value function in the DN decoder (dn.c) in Libksba before 1.3.4 allows remote attackers to cause a denial of service (out-of-bounds read) via invalid utf-8 encoded data. NOTE: this vulnerability exists because of an incomplete fix for CVE-2016-4356.
Scope: local
bookworm: resolved (fixed in 1.3.4-3)
bullseye: resolved (fixed in 1.3.4-3)
forky: resolved (fixed in 1.3.4-3)
sid: resolved (fixed in 1.3.4-3)
trixie: resolved (fixed in 1.3.4-3)
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2016-4574 libksba: Incomplete fix for CVE-2016-4356
bugzilla·2016-05-10·CVSS 7.5
CVE-2016-4574 [HIGH] CVE-2016-4574 libksba: Incomplete fix for CVE-2016-4356
CVE-2016-4574 libksba: Incomplete fix for CVE-2016-4356
An incomplete fix for CVE-2016-4356 was reported in libksba. The old fix for the problem from April 2015 had an off-by-one in the bad encoding handing.
Upstream fix:
http://git.gnupg.org/cgi-bin/gitweb.cgi?p=libksba.git;a=commit;h=6be61daac047d8e6aa941eb103f8e71a1d4e3c75
CVE assignment:
http://seclists.org/oss-sec/2016/q2/300
Discussion:
Created libksba tracking bugs for this issue:
Affects: fedora-all [bug 1334832]
---
libksba-1.3.4-1.fc24 has been pushed to the Fedora 24 stable repository. If problems still persist, please make note of it in this bug report.
---
libksba-1.3.4-1.fc23 has been pushed to the Fedora 23 stable repository. If problems still persist, please make note of it in this bug report.
Bugzilla
CVE-2016-4574 CVE-2016-4579 libksba: various flaws [fedora-all]
bugzilla·2016-05-10·CVSS 7.5
CVE-2016-4574 [HIGH] CVE-2016-4574 CVE-2016-4579 libksba: various flaws [fedora-all]
CVE-2016-4574 CVE-2016-4579 libksba: various flaws [fedora-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of Fedora.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
NOTE: this issue affects multiple supported versions of Fedora. While
http://git.gnupg.org/cgi-bin/gitweb.cgi?p=libksba.git%3Ba=commit%3Bh=6be61daac047d8e6aa941eb103f8e71a1d4e3c75http://lists.opensuse.org/opensuse-updates/2016-05/msg00087.htmlhttp://lists.opensuse.org/opensuse-updates/2016-06/msg00028.htmlhttp://www.openwall.com/lists/oss-security/2016/05/10/3http://www.openwall.com/lists/oss-security/2016/05/10/4http://www.ubuntu.com/usn/USN-2982-1http://git.gnupg.org/cgi-bin/gitweb.cgi?p=libksba.git%3Ba=commit%3Bh=6be61daac047d8e6aa941eb103f8e71a1d4e3c75http://lists.opensuse.org/opensuse-updates/2016-05/msg00087.htmlhttp://lists.opensuse.org/opensuse-updates/2016-06/msg00028.htmlhttp://www.openwall.com/lists/oss-security/2016/05/10/3http://www.openwall.com/lists/oss-security/2016/05/10/4http://www.ubuntu.com/usn/USN-2982-1
2016-06-13
Published