GNU binutils up to 2.27 BFD Library bfd/elflink.c bfd_elf_final_link File Descriptor out-of-bounds

CVSS Meta Temp Score
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in GNU binutils up to 2.27. This affects the function bfd_elf_final_link of the file bfd/elflink.c of the component BFD Library. Performing a manipulation as part of File Descriptor results in out-of-bounds. This vulnerability was named CVE-2017-7299. The attack may be initiated remotely. There is no available exploit. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic has been found in GNU binutils up to 2.27 (Programming Tool Software). This affects the function bfd_elf_final_link of the file bfd/elflink.c of the component BFD Library. The manipulation as part of a File Descriptor leads to a out-of-bounds vulnerability. CWE is classifying the issue as CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. This is going to have an impact on availability. The summary by CVE is:

The Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.28, has an invalid read (of size 8) because the code to emit relocs (bfd_elf_final_link function in bfd/elflink.c) does not check the format of the input file before trying to read the ELF reloc section header. The vulnerability leads to a GNU linker (ld) program crash.

The bug was discovered 12/06/2016. The weakness was presented 03/29/2017 as Bug 20908 as not defined bug report (Bugzilla). It is possible to read the advisory at sourceware.org. This vulnerability is uniquely identified as CVE-2017-7299 since 03/29/2017. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability was handled as a non-public zero-day exploit for at least 113 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 105225 (openSUSE Security Update : binutils (openSUSE-2017-1330)), 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 171830 (OpenSUSE Security Update for binutils (openSUSE-SU-2018:3223-1)).

Upgrading to version 2.28 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 (105225) and SecurityFocus (BID 97217†). See VDB-98231, VDB-98373, VDB-99064 and VDB-99065 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: 5.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

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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: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 105225
Nessus Name: openSUSE Security Update : binutils (openSUSE-2017-1330)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: binutils 2.28

Timelineinfo

12/06/2016 🔍
03/29/2017 +113 days 🔍
03/29/2017 +0 days 🔍
03/29/2017 +0 days 🔍
03/29/2017 +0 days 🔍
03/30/2017 +1 days 🔍
12/02/2017 +247 days 🔍
12/14/2017 +12 days 🔍
12/03/2024 +2546 days 🔍

Sourcesinfo

Vendor: gnu.org

Advisory: Bug 20908
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-7299 (🔍)
GCVE (CVE): GCVE-0-2017-7299
GCVE (VulDB): GCVE-100-99063
SecurityFocus: 97217 - GNU Binutils CVE-2017-7299 Remote Denial of Service Vulnerability
OSVDB: - CVE-2017-7299 - Binutils - Invalid Read Issue

See also: 🔍

Entryinfo

Created: 03/30/2017 09:24
Updated: 12/03/2024 13:02
Changes: 03/30/2017 09:24 (76), 08/26/2020 15:14 (9), 12/03/2024 13:02 (21)
Complete: 🔍
Cache ID: 216:25A:103

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