FreeBSD up to 11.0 bspatch integer coercion

CVSS Meta Temp Score
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CTI Interest Score
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6.0$0-$5k0.00

Summaryinfo

A vulnerability was found in FreeBSD 9.3/10.1/10.2/10.3/11.0. It has been rated as critical. Affected by this issue is some unknown functionality of the component bspatch. The manipulation leads to integer coercion. No exploit exists. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in FreeBSD 9.3/10.1/10.2/10.3/11.0 (Operating System) and classified as critical. This issue affects an unknown function of the component bspatch. The manipulation with an unknown input leads to a integer coercion vulnerability. Using CWE to declare the problem leads to CWE-192. Integer coercion refers to a set of flaws pertaining to the type casting, extension, or truncation of primitive data types. Impacted is confidentiality, integrity, and availability.

The weakness was disclosed 10/10/2016 as FreeBSD-SA-16:29.bspatch as confirmed security advisory (Website). It is possible to read the advisory at security.FreeBSD.org. The attack may be initiated remotely. The technical details are unknown and an exploit is not publicly available. The advisory points out:

The implementation of bspatch is susceptible to integer overflows with carefully crafted input, potentially allowing an attacker who can control the patch file to write at arbitrary locations in the heap. This issue was partially addressed in FreeBSD-SA-16:25.bspatch, but some possible integer overflows remained.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at SecurityTracker (ID 1036977†). The entries VDB-92688 and VDB-92686 are pretty similar. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.0

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

Exploitinginfo

Class: Integer coercion
CWE: CWE-192 / CWE-189
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

10/10/2016 🔍
10/10/2016 +0 days 🔍
10/13/2016 +3 days 🔍
05/08/2019 +937 days 🔍

Sourcesinfo

Product: freebsd.org

Advisory: FreeBSD-SA-16:29.bspatch
Status: Confirmed

GCVE (VulDB): GCVE-100-92687
SecurityTracker: 1036977

See also: 🔍

Entryinfo

Created: 10/13/2016 10:09
Updated: 05/08/2019 21:57
Changes: 10/13/2016 10:09 (42), 05/08/2019 21:57 (4)
Complete: 🔍
Cache ID: 216::103

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

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