libav 12.3 AAC File vc1.c ff_vc1_parse_frame_header_adv null pointer dereference
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
5.4 | $0-$5k | 0.00 |
A vulnerability classified as problematic has been found in libav 12.3 (Multimedia Player Software). This affects the function ff_vc1_parse_frame_header_adv
of the file vc1.c of the component AAC File Handler. 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:
There exists a NULL pointer dereference in ff_vc1_parse_frame_header_adv in vc1.c in Libav 12.3, which allows attackers to cause a denial-of-service through a crafted aac file.
The bug was discovered 10/29/2018. The weakness was presented 10/29/2018 (Website). The advisory is shared at bugzilla.libav.org. This vulnerability is uniquely identified as CVE-2018-18829 since 10/28/2018. 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 1 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.
See 126152, 126151 and 126150 for similar entries.
Product
Type
Name
Version
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 5.4VulDB 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: 🔍
CVSSv2
AV | AC | Au | C | I | A |
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💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Null pointer dereferenceCWE: CWE-476 / CWE-404
ATT&CK: Unknown
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
---|---|---|---|---|
Today | unlock | unlock | unlock | unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: no mitigation knownStatus: 🔍
0-Day Time: 🔍
Timeline
10/28/2018 🔍10/29/2018 🔍
10/29/2018 🔍
10/30/2018 🔍
10/31/2018 🔍
04/07/2020 🔍
Sources
Advisory: bugzilla.libav.orgStatus: Not defined
CVE: CVE-2018-18829 (🔍)
See also: 🔍
Entry
Created: 10/31/2018 06:17Updated: 04/07/2020 20:21
Changes: 10/31/2018 06:17 (59), 04/07/2020 20:21 (1)
Complete: 🔍
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