libav 12.2 libavcodec/vc1dec.c vc1_decode_frame null pointer dereference

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.4$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in libav 12.2. Impacted is the function vc1_decode_frame of the file libavcodec/vc1dec.c. Performing a manipulation results in null pointer dereference. This vulnerability is identified as CVE-2017-17127. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability, which was classified as problematic, was found in libav 12.2 (Multimedia Player Software). This affects the function vc1_decode_frame of the file libavcodec/vc1dec.c. The manipulation with an unknown input leads to a null pointer dereference vulnerability. CWE is classifying the issue as CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. This is going to have an impact on availability. The summary by CVE is:

The vc1_decode_frame function in libavcodec/vc1dec.c in Libav 12.2 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via a crafted file.

The bug was discovered 11/17/2017. The weakness was released 12/04/2017 (Website). The advisory is shared at bugzilla.libav.org. This vulnerability is uniquely identified as CVE-2017-17127 since 12/04/2017. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 17 days. During that time the estimated underground price was around $0-$5k.

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-110184, VDB-110183 and VDB-110182. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.4

VulDB Base Score: 4.3
VulDB Temp Score: 4.3
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: Null pointer dereference
CWE: CWE-476 / CWE-404
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

11/17/2017 🔍
12/04/2017 +17 days 🔍
12/04/2017 +0 days 🔍
12/04/2017 +0 days 🔍
12/04/2017 +0 days 🔍
01/17/2023 +1870 days 🔍

Sourcesinfo

Advisory: DLA 2021-1
Status: Not defined

CVE: CVE-2017-17127 (🔍)
GCVE (CVE): GCVE-0-2017-17127
GCVE (VulDB): GCVE-100-110181
See also: 🔍

Entryinfo

Created: 12/04/2017 15:06
Updated: 01/17/2023 07:13
Changes: 12/04/2017 15:06 (58), 12/12/2019 08:17 (1), 01/17/2023 07:13 (3)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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