GNU binutils up to 2.29 libbfd dwarf2.c decode_line_info File Descriptor memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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5.2$0-$5k0.00

Summaryinfo

A vulnerability was found in GNU binutils up to 2.29. It has been rated as critical. This impacts the function decode_line_info of the file dwarf2.c of the component libbfd. The manipulation as part of File Descriptor leads to memory corruption. This vulnerability is listed as CVE-2017-14939. The attack must be carried out locally. In addition, an exploit is available.

Detailsinfo

A vulnerability was found in GNU binutils up to 2.29 (Programming Tool Software) and classified as critical. This issue affects the function decode_line_info of the file dwarf2.c of the component libbfd. The manipulation as part of a File Descriptor leads to a memory corruption vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

decode_line_info in dwarf2.c in the Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.29, mishandles a length calculation, which allows remote attackers to cause a denial of service (heap-based buffer over-read and application crash) via a crafted ELF file, related to read_1_byte.

The bug was discovered 09/24/2017. The weakness was presented 09/30/2017 by Agostino Sarubbo (Website). It is possible to read the advisory at blogs.gentoo.org. The identification of this vulnerability is CVE-2017-14939 since 09/29/2017. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. Technical details as well as a public exploit are known.

The exploit is available at exploit-db.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 5 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 111916 (Photon OS 1.0: Binutils PHSA-2018-1.0-0104 (deprecated)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family PhotonOS Local Security Checks and running in the context l.

A possible mitigation has been published 5 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Exploit-DB (42970), Tenable (111916) and SecurityFocus (BID 101216†). See VDB-105827, VDB-107296, VDB-107298 and VDB-107300 for similar entries. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 4.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 111916
Nessus Name: Photon OS 1.0: Binutils PHSA-2018-1.0-0104 (deprecated)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Patch: 515f23e63c0074ab531bc954f84ca40c6281a724

Timelineinfo

09/24/2017 🔍
09/26/2017 +2 days 🔍
09/29/2017 +3 days 🔍
09/29/2017 +0 days 🔍
09/30/2017 +1 days 🔍
09/30/2017 +0 days 🔍
02/01/2018 +124 days 🔍
08/17/2018 +197 days 🔍
11/30/2024 +2297 days 🔍

Sourcesinfo

Vendor: gnu.org

Advisory: blogs.gentoo.org
Researcher: Agostino Sarubbo
Status: Confirmed

CVE: CVE-2017-14939 (🔍)
GCVE (CVE): GCVE-0-2017-14939
GCVE (VulDB): GCVE-100-107303
SecurityFocus: 101216 - GNU Binutils CVE-2017-14939 Remote Denial of Service Vulnerability

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

Entryinfo

Created: 09/30/2017 11:35
Updated: 11/30/2024 19:17
Changes: 09/30/2017 11:35 (69), 11/20/2019 17:58 (12), 12/30/2022 13:19 (4), 11/30/2024 19:17 (19)
Complete: 🔍
Cache ID: 216::103

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