SB2021123106 - openEuler update for binutils

Description

This security bulletin contains information about 2 vulnerabilities.

1) Out-of-bounds write (CVE-ID: CVE-2021-45078)

CWE-ID: CWE-787 - Out-of-bounds write

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to a boundary error in stab_xcoff_builtin_type() function in stabs.c. A remote attacker can create a specially crafted file, trick the victim into opening it using the affected software, trigger out-of-bounds write and execute arbitrary code on the target system.

Note, the vulnerability exists due to incorrect patch for #VU13471 (CVE-2018-12699).

2) Heap-based buffer overflow (CVE-ID: CVE-2018-12699)

CWE-ID: CWE-122 - Heap-based Buffer Overflow

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P/U:Clear

The vulnerability allows a local attacker to cause DoS condition on the target system.

The vulnerability exists due to heap-based buffer overflow in the finish_stab function, as defined in the stabs.c source code file. A local attacker can execute the objdump command, trigger memory corruption and cause the service to crash.

Remediation

Install update from vendor's website.

References

• https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2021-1479