GNU binutils 2.30 libbfd elf.c assign_file_positions_for_non_load_sections null pointer dereference
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
5.3 | $0-$5k | 0.00 |
A vulnerability, which was classified as problematic, was found in GNU binutils 2.30 (Programming Tool Software). Affected is the function assign_file_positions_for_non_load_sections
of the file elf.c of the component libbfd. 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. CVE summarizes:
The assign_file_positions_for_non_load_sections function in elf.c in the Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.30, allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via an ELF file with a RELRO segment that lacks a matching LOAD segment, as demonstrated by objcopy.
The bug was discovered 02/23/2018. The weakness was disclosed 02/28/2018 (Website). The advisory is shared for download at sourceware.org. This vulnerability is traded as CVE-2018-7570 since 02/28/2018. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. 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 118337 (openSUSE Security Update : binutils (openSUSE-2018-1222)), 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.
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 vulnerability database at Tenable (118337). The entries 108725, 109436, 109437 and 109439 are pretty similar.
Product
Type
Vendor
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: 5.3
VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 5.5
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 |
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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 |
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Today | unlock | unlock | unlock | unlock |
Nessus ID: 118337
Nessus Name: openSUSE Security Update : binutils (openSUSE-2018-1222)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍
Patch: 01f7e10cf2dcf403462b2feed06c43135651556d
Timeline
02/23/2018 🔍02/28/2018 🔍
02/28/2018 🔍
02/28/2018 🔍
03/01/2018 🔍
10/23/2018 🔍
10/24/2018 🔍
02/16/2023 🔍
Sources
Vendor: gnu.orgAdvisory: sourceware.org
Status: Not defined
CVE: CVE-2018-7570 (🔍)
See also: 🔍
Entry
Created: 03/01/2018 08:01Updated: 02/16/2023 09:52
Changes: 03/01/2018 08:01 (65), 01/09/2020 15:26 (10), 02/16/2023 09:52 (4)
Complete: 🔍
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