SB2019080660 - Red Hat Enterprise Linux 7 update for binutils
Published: August 6, 2019
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 3 secuirty vulnerabilities.
1) Integer overflow (CVE-ID: CVE-2018-1000876)
The vulnerability allows a local attacker to gain elevated privileges on the target system.
The vulnerability exists due to integer overflow in objdump, bfd_get_dynamic_reloc_upper_bound,bfd_canonicalize_dynamic_reloc. A local attacker can trigger heap-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
2) Resource exhaustion (CVE-ID: CVE-2018-12641)
The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.
An issue was discovered in arm_pt in cplus-dem.c in GNU libiberty, as distributed in GNU Binutils 2.30. Stack Exhaustion occurs in the C++ demangling functions provided by libiberty, and there are recursive stack frames: demangle_arm_hp_template, demangle_class_name, demangle_fund_type, do_type, do_arg, demangle_args, and demangle_nested_args. This can occur during execution of nm-new.
3) Null pointer dereference (CVE-ID: CVE-2018-12697)
The vulnerability allows a local attacker to cause DoS condition on the target system.
The vulnerability exists due to NULL pointer dereference in the work_stuff_copy_to_from function, as defined in the cplus-dem.csource code file in the GNU libiberty library. A local attacker can execute the objdump command, trigger NULL pointer dereference condition and cause the service to crash.
Remediation
Install update from vendor's website.