Stack-based buffer overflow in mutt (Alpine package)

1) Stack-based buffer overflow

EUVDB-ID: #VU14139

Risk: Low

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2018-14352

CWE-ID: CWE-121 - Stack-based buffer overflow

Exploit availability: No

Description

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

The vulnerability exists due to imap_quote_string in imap/util.c does not leave room for quote characters. A remote attacker can use FETCH response with a long INTERNALDATE field, trigger stack-based buffer overflow and cause the service to crash.

Mitigation

Install update from vendor's website.

Vulnerable software versions

mutt (Alpine package): 1.5.21-r0 - 1.10.0-r0

CPE2.3

• cpe:2.3:a:alpine:mutt_alpine_package:1.5.21-r0:*:*:*:*:alpine_linux:*:2.4
• cpe:2.3:a:alpine:mutt_alpine_package:1.5.22-r0:*:*:*:*:alpine_linux:*:2.6
• cpe:2.3:a:alpine:mutt_alpine_package:1.5.23-r0:*:*:*:*:alpine_linux:*:2.4

External links

https://git.alpinelinux.org/aports/commit/?id=0d3886cdea880fe65aff164040ab54f9e2d5ee93
https://git.alpinelinux.org/aports/commit/?id=7b76ef5a44a34f2aa0ab6dcbd05653a7f384d5cd
https://git.alpinelinux.org/aports/commit/?id=8096bf545fbce05d5535cb01173187a08a4e7f14
https://git.alpinelinux.org/aports/commit/?id=e16a7290cad51651c51b16468159e0bb5a11f234

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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