PT-2017-4088 · Musl+2 · Musl Libc+2

Felix Wilhelm · Published 2017-10-18 · Updated 2024-10-17 · CVE-2017-15650

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions musl libc versions prior to 1.1.17

Description The issue is related to a buffer overflow in the dns parse callback function in network/lookup name.c, which does not restrict the number of addresses. This allows an attacker to provide an unexpected number of addresses by sending A records in a reply to an AAAA query, potentially leading to a denial of service.

Recommendations For musl libc versions prior to 1.1.17, update to version 1.1.17 or later to resolve the issue.

Exploit

Fix

Buffer Overflow

Weakness Enumeration

CWE-119

Related Identifiers

ALT-PU-2024-13885

BDU:2021-01447

CVE-2017-15650

USN-4768-1

Affected Products

Alt Linux

Ubuntu

Musl Libc

References · 38

• 🔥 https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/linux/local/glibc_realpath_priv_esc.rb · Exploit
• 🔥 https://github.com/0x00-0x00/CVE-2018-1000001 · Exploit
• https://bdu.fstec.ru/vul/2021-01480 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-15650 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-28928 · Security Note
• http://git.musl-libc.org/cgit/musl/tree/WHATSNEW · Vendor Advisory
• https://ubuntu.com/security/CVE-2018-1000001 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2017-15650 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2017-15650 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-4768-1 · Vendor Advisory
• http://git.musl-libc.org/cgit/musl/commit/?id=45ca5d3fcb6f874bf5ba55d0e9651cef68515395 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2017-15650 · Security Note
• https://osv.dev/vulnerability/ALPINE-CVE-2017-15650 · Vendor Advisory
• https://bdu.fstec.ru/vul/2018-00415 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-3484 · Security Note