GnuTLS up to 3.3.25/3.5.7 OpenPGP Certificate memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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8.4$0-$5k0.00

Summaryinfo

A vulnerability identified as critical has been detected in GnuTLS up to 3.3.25/3.5.7. This affects an unknown function of the component OpenPGP Certificate Handler. The manipulation leads to memory corruption. This vulnerability is traded as CVE-2017-5337. It is possible to initiate the attack remotely. There is no exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in GnuTLS up to 3.3.25/3.5.7 (Network Encryption Software) and classified as critical. This issue affects some unknown functionality of the component OpenPGP Certificate Handler. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Multiple heap-based buffer overflows in the read_attribute function in GnuTLS before 3.3.26 and 3.5.x before 3.5.8 allow remote attackers to have unspecified impact via a crafted OpenPGP certificate.

The bug was discovered 01/11/2017. The weakness was shared 01/11/2017 as confirmed advisory (Website). It is possible to read the advisory at gnutls.org. The identification of this vulnerability is CVE-2017-5337 since 01/10/2017. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 97951 (CentOS 6 : gnutls (CESA-2017:0574)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CentOS Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 169508 (SUSE Enterprise Linux Security Update for gnutls (SUSE-SU-2017:0304-1)).

Upgrading to version 3.3.26 or 3.5.8 eliminates this vulnerability. A possible mitigation has been published 3 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (97951), SecurityFocus (BID 95372†) and SecurityTracker (ID 1037576†). The entries VDB-95276, VDB-95277 and VDB-95278 are related to this item. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.4

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 97951
Nessus Name: CentOS 6 : gnutls (CESA-2017:0574)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 867773
OpenVAS Name: Fedora Update for gnutls FEDORA-2017-e86817c42e
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: GnuTLS 3.3.26/3.5.8
Patch: gitlab.com

Timelineinfo

01/10/2017 🔍
01/10/2017 +0 days 🔍
01/11/2017 +1 days 🔍
01/11/2017 +0 days 🔍
01/11/2017 +0 days 🔍
01/13/2017 +2 days 🔍
03/24/2017 +70 days 🔍
03/24/2017 +0 days 🔍
03/27/2017 +3 days 🔍
10/28/2022 +2041 days 🔍

Sourcesinfo

Advisory: RHSA-2017:0574
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-5337 (🔍)
GCVE (CVE): GCVE-0-2017-5337
GCVE (VulDB): GCVE-100-95279
SecurityFocus: 95372 - GnuTLS 'lib/opencdk/read-packet.c' Multiple Heap Buffer Overflow Vulnerabilities
OSVDB: - CVE-2017-5337 - GnuTLS - Multiple Buffer Overflow Issues
SecurityTracker: 1037576

See also: 🔍

Entryinfo

Created: 01/13/2017 11:39
Updated: 10/28/2022 14:50
Changes: 01/13/2017 11:39 (80), 08/31/2020 17:08 (7), 10/28/2022 14:42 (4), 10/28/2022 14:46 (1), 10/28/2022 14:50 (1)
Complete: 🔍
Cache ID: 216:0AA:103

Be aware that VulDB is the high quality source for vulnerability data.

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