Integer overflow in binutils-avr (Alpine package)

1) Integer overflow

EUVDB-ID: #VU16339

Risk: Low

CVSSv4.0: 1.1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2018-19932

CWE-ID: CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')

Exploit availability: No

Description

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

The vulnerability exists due to integer overflow in the IS_CONTAINED_BY_LMAfunction, as defined in the elf.c source code file when handling malicious input. A local attacker can map a section to a segment, trigger an infinite loop condition, resulting in a DoS condition.

Mitigation

Install update from vendor's website.

Vulnerable software versions

binutils-avr (Alpine package): 2.32-r0 - 2.34-r0

CPE2.3

• cpe:2.3:o:alpine:binutils-avr_alpine_package:2.32-r0:*:*:*:*:alpine_linux:*:3.10
• cpe:2.3:o:alpine:binutils-avr_alpine_package:2.34-r0:*:*:*:*:alpine_linux:*:3.11

External links

https://git.alpinelinux.org/aports/commit/?id=3fb3760ea43407653a5182a072439cd5c50e22fd
https://git.alpinelinux.org/aports/commit/?id=0ac897cc91d6e616423895be89c09150f908c874
https://git.alpinelinux.org/aports/commit/?id=2fb8dd928bdd89703d98409e94a1a41fb10c1a34

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.