libav 12.3 AAC File vc1_block.c ff_vc1_pred_dc out-of-bounds

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.4$0-$5k0.00

Summaryinfo

A vulnerability marked as critical has been reported in libav 12.3. This vulnerability affects the function ff_vc1_pred_dc of the file vc1_block.c of the component AAC File Handler. This manipulation causes out-of-bounds. This vulnerability is handled as CVE-2018-18827. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability was found in libav 12.3 (Multimedia Player Software). It has been declared as critical. Affected by this vulnerability is the function ff_vc1_pred_dc of the file vc1_block.c of the component AAC File Handler. The manipulation with an unknown input leads to a out-of-bounds vulnerability. The CWE definition for the vulnerability is CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

There exists a heap-based buffer over-read in ff_vc1_pred_dc in vc1_block.c in Libav 12.3, which allows attackers to cause a denial-of-service via a crafted aac file.

The bug was discovered 10/31/2018. The weakness was released 10/29/2018 (Website). It is possible to read the advisory at bugzilla.libav.org. This vulnerability is known as CVE-2018-18827 since 10/28/2018. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Entries connected to this vulnerability are available at VDB-126150 and VDB-126152. 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: 6.4
VulDB Meta Temp Score: 6.4

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

NVD Base Score: 6.5
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: Out-of-bounds
CWE: CWE-125 / 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: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

10/28/2018 🔍
10/29/2018 +1 days 🔍
10/30/2018 +0 days 🔍
10/31/2018 +1 days 🔍
10/31/2018 +0 days 🔍
04/07/2020 +524 days 🔍

Sourcesinfo

Advisory: bugzilla.libav.org
Status: Not defined

CVE: CVE-2018-18827 (🔍)
GCVE (CVE): GCVE-0-2018-18827
GCVE (VulDB): GCVE-100-126151
See also: 🔍

Entryinfo

Created: 10/31/2018 06:16
Updated: 04/07/2020 18:38
Changes: 10/31/2018 06:16 (58), 04/07/2020 18:38 (1)
Complete: 🔍
Cache ID: 216::103

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

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