LAME 3.99.5 mpglib layer3.c III_dequantize_sample Audio File memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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5.9$0-$5k0.00

A vulnerability, which was classified as critical, was found in LAME 3.99.5. This affects the function III_dequantize_sample of the file layer3.c of the component mpglib. The manipulation as part of a Audio File leads to a memory corruption vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

The III_dequantize_sample function in layer3.c in mpglib, as used in libmpgdecoder.a in LAME 3.99.5 and other products, allows remote attackers to cause a denial of service (stack-based buffer overflow and application crash) or possibly have unspecified other impact via a crafted audio file.

The bug was discovered 06/17/2017. The weakness was released 06/25/2017 by Agostino Sarubbo with Gentoo (Website). The advisory is shared at exploit-db.com. This vulnerability is uniquely identified as CVE-2017-9872 since 06/25/2017. 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 and a public exploit are known.

A public exploit has been developed by Agostino Sarubbo and been published 1 days after the advisory. The exploit is shared for download at github.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 8 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 107048 (openSUSE Security Update : lame (openSUSE-2018-214)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 170898 (OpenSUSE Security Update for lame (openSUSE-SU-2018:0544-1)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 9 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (107048) and Exploit-DB (42259). Entries connected to this vulnerability are available at 102796, 102797, 102798 and 102799.

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CPE 2.3info

CPE 2.2info

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CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.3

VulDB Base Score: 5.3
VulDB Temp Score: 4.8
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NVD Base Score: 7.8
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Exploitinginfo

Class: Memory corruption
CWE: CWE-119
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Author: Agostino Sarubbo
Download: 🔍

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Nessus ID: 107048
Nessus Name: openSUSE Security Update : lame (openSUSE-2018-214)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
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OpenVAS ID: 864288
OpenVAS Name: SuSE Update for lame openSUSE-SU-2018:0544-1 (lame)
OpenVAS File: 🔍
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Threat Intelligenceinfo

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Countermeasuresinfo

Recommended: Upgrade
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Timelineinfo

06/17/2017 🔍
06/25/2017 +8 days 🔍
06/25/2017 +0 days 🔍
06/25/2017 +0 days 🔍
06/26/2017 +1 days 🔍
06/26/2017 +0 days 🔍
06/26/2017 +0 days 🔍
06/26/2017 +0 days 🔍
02/26/2018 +245 days 🔍
02/28/2018 +2 days 🔍
10/20/2019 +599 days 🔍

Sourcesinfo

Advisory: exploit-db.com
Researcher: Agostino Sarubbo
Organization: Gentoo
Status: Confirmed

CVE: CVE-2017-9872 (🔍)
SecurityFocus: 99270 - LAME CVE-2017-9872 Stack Buffer Overflow Vulnerability

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 06/26/2017 08:51
Updated: 10/20/2019 17:29
Changes: 06/26/2017 08:51 (84), 10/20/2019 17:29 (7)
Complete: 🔍

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