Stack-Based Buffer Overflow in musl libc Affects Network Applications
CVE-2014-3484

9.8CRITICAL

Key Information:

Vendor

Musl-libc

Status
Musl Libc
Vendor
CVE Published:
20 February 2020

What is CVE-2014-3484?

This vulnerability involves multiple stack-based buffer overflows in the __dn_expand function of musl libc, affecting versions prior to 1.1.2 and specific versions within 0.9.13 to 1.0.3. The flaw allows remote attackers to exploit invalid name lengths in DNS responses, potentially leading to unexpected behavior and service interruptions. In certain scenarios, this vulnerability could cause an infinite loop, resulting in denial of service through application crashes. Addressing this issue is crucial for maintaining the security of network-related applications utilizing the musl libc.

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Affected Version(s)

musl libc 1.1x before 1.1.2

musl libc 0.9.13 through 1.0.3

References

http://seclists.org/oss-sec/2014/q2/495
x_refsource_MISC
http://git.musl-libc.org/cgit/musl/commit/?id=b3d9e0b94ea...
x_refsource_MISC

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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