Critical severity · published Feb 20, 2020
CVE-2014-3484
Multiple stack-based buffer overflows in the __dn_expand function in network/dn_expand.c in musl libc 1.1x before 1.1.2 and 0.9.13 through 1.0.3 allow remote attackers to (1) have…
9.8
CVSS
2.2%
EPSS
No
On KEV
Description
Multiple stack-based buffer overflows in the __dn_expand function in network/dn_expand.c in musl libc 1.1x before 1.1.2 and 0.9.13 through 1.0.3 allow remote attackers to (1) have unspecified impact via an invalid name length in a DNS response or (2) cause a denial of service (crash) via an invalid name length in a DNS response, related to an infinite loop with no output.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.2% · higher than 83% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MU
Musl · Musl-libc
0.9.13 through 1.0.3; 1.1.0 before 1.1.2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2014-3484
CVE.org
https://www.cve.org/CVERecord?id=CVE-2014-3484
Patch
http://git.musl-libc.org/cgit/musl/commit/?id=b3d9e0b94ea73c68ef4169ec82c898ce59a4e30a
Mailing List
http://seclists.org/oss-sec/2014/q2/495
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