GNU binutils 2.30 libbfd peXXigen.c _bfd_XX_bfd_copy_private_bfd_data_common out-of-bounds write

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
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 critical, was found in GNU binutils 2.30. This affects the function _bfd_XX_bfd_copy_private_bfd_data_common of the file peXXigen.c of the component libbfd. Executing a manipulation can lead to out-of-bounds write. This vulnerability is handled as CVE-2018-10534. It is possible to launch the attack on the local host. There is not any exploit available.

Detailsinfo

A vulnerability was found in GNU binutils 2.30 (Programming Tool Software). It has been declared as critical. This vulnerability affects the function _bfd_XX_bfd_copy_private_bfd_data_common of the file peXXigen.c of the component libbfd. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. The CWE definition for the vulnerability is CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

The _bfd_XX_bfd_copy_private_bfd_data_common function in peXXigen.c in the Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.30, processes a negative Data Directory size with an unbounded loop that increases the value of (external_IMAGE_DEBUG_DIRECTORY) *edd so that the address exceeds its own memory region, resulting in an out-of-bounds memory write, as demonstrated by objcopy copying private info with _bfd_pex64_bfd_copy_private_bfd_data_common in pex64igen.c.

The bug was discovered 04/24/2018. The weakness was released 04/29/2018 (Website). The advisory is shared for download at securityfocus.com. This vulnerability was named CVE-2018-10534 since 04/29/2018. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are known technical details, but no exploit is available.

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 111949 (Photon OS 1.0: Binutils / File / Linux / Pcre / Shadow PHSA-2018-1.0-0171 (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. The commercial vulnerability scanner Qualys is able to test this issue with plugin 237010 (Red Hat Update for binutils (RHSA-2018:3032)).

A possible mitigation has been published 4 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (111949) and SecurityFocus (BID 104025†). Entries connected to this vulnerability are available at VDB-103381, VDB-113551, VDB-113950 and VDB-113951. Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Website

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

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Out-of-bounds write
CWE: CWE-787 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 111949
Nessus Name: Photon OS 1.0: Binutils / File / Linux / Pcre / Shadow PHSA-2018-1.0-0171 (deprecated)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

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

Timelineinfo

04/24/2018 🔍
04/29/2018 +4 days 🔍
04/29/2018 +0 days 🔍
04/29/2018 +0 days 🔍
04/30/2018 +1 days 🔍
08/03/2018 +95 days 🔍
08/17/2018 +14 days 🔍
03/08/2023 +1664 days 🔍

Sourcesinfo

Vendor: gnu.org

Advisory: RHSA-2018:3032⛔
Status: Confirmed

CVE: CVE-2018-10534 (🔍)
GCVE (CVE): GCVE-0-2018-10534
GCVE (VulDB): GCVE-100-117196
SecurityFocus: 104025

See also: 🔍

Entryinfo

Created: 04/30/2018 09:04
Updated: 03/08/2023 08:10
Changes: 04/30/2018 09:04 (72), 02/01/2020 10:12 (5), 03/08/2023 08:10 (3)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Might our Artificial Intelligence support you?

Check our Alexa App!