VDB-100427 · CVE-2016-10091 · BID 95173

unrtf 0.21.9 cmd_expand/cmd_emboss/cmd_engrave memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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7.1$0-$5k0.00

Summaryinfo

A vulnerability was found in unrtf 0.21.9. It has been classified as critical. This affects the function cmd_expand/cmd_emboss/cmd_engrave. The manipulation leads to memory corruption. This vulnerability is uniquely identified as CVE-2016-10091. The attack is possible to be carried out remotely. No exploit exists. To fix this issue, it is recommended to deploy a patch.

Detailsinfo

A vulnerability was found in unrtf 0.21.9 and classified as critical. This issue affects the function cmd_expand/cmd_emboss/cmd_engrave. 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 stack-based buffer overflows in unrtf 0.21.9 allow remote attackers to cause a denial-of-service by writing a negative integer to the (1) cmd_expand function, (2) cmd_emboss function, or (3) cmd_engrave function.

The bug was discovered 07/03/2017. The weakness was disclosed 04/21/2017 by Salvatore Bonaccorso (oss-sec). It is possible to read the advisory at openwall.com. The identification of this vulnerability is CVE-2016-10091 since 12/31/2016. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details of the vulnerability are known, but there is no available exploit.

Applying a patch is able to eliminate this problem.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 95173†). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.4
VulDB Meta Temp Score: 7.2

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

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Timelineinfo

12/31/2016 🔍
12/31/2016 +0 days 🔍
04/21/2017 +111 days 🔍
04/21/2017 +0 days 🔍
04/21/2017 +0 days 🔍
07/03/2017 +73 days 🔍
09/19/2020 +1174 days 🔍

Sourcesinfo

Advisory: openwall.com
Researcher: Salvatore Bonaccorso
Status: Not defined
Confirmation: 🔍

CVE: CVE-2016-10091 (🔍)
GCVE (CVE): GCVE-0-2016-10091
GCVE (VulDB): GCVE-100-100427
SecurityFocus: 95173 - UnRTF CVE-2016-10091 Multiple Stack Buffer Overflow Vulnerabilities
OSVDB: - CVE-2016-10091 - UnRTF - Multiple Buffer Overflow Issues

Entryinfo

Created: 04/21/2017 21:46
Updated: 09/19/2020 11:04
Changes: 04/21/2017 21:46 (61), 09/19/2020 11:04 (5)
Complete: 🔍
Cache ID: 216:5D8:103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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