SB2019081111 - NULL pointer dereference in binutils (Alpine package)
Published: August 11, 2019
Security Bulletin ID
SB2019081111
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Partial DoS
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) NULL pointer dereference (CVE-ID: CVE-2018-7642)
CWE-ID: CWE-476 - NULL Pointer Dereference
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/U:Clear
The vulnerability allows a remote attacker to cause DoS condition on the target system.
The weakness exists due to improper bounds checking when using the swap_std_reloc_in function, as defined in the aoutx.h source code file in the Binary File Descriptor (BFD) library. A remote attacker can submit a specially crafted ELF file, trigger NULL pointer dereference and cause the service to crash.
Remediation
Install update from vendor's website.