Overview
- 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.
- Source
- secalert@redhat.com
- NVD status
- Analyzed
Risk scores
CVSS 3.1
- Type
- Primary
- Base score
- 9.8
- Impact score
- 5.9
- Exploitability score
- 3.9
- Vector string
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Severity
- CRITICAL
CVSS 2.0
- Type
- Primary
- Base score
- 7.5
- Impact score
- 6.4
- Exploitability score
- 10
- Vector string
- AV:N/AC:L/Au:N/C:P/I:P/A:P
Weaknesses
- nvd@nist.gov
- CWE-787
Social media
- Hype score
- Not currently trending
Configurations
[
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:musl-libc:musl:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "F2C22053-E599-44C2-A28A-94DDE6874815",
"versionEndIncluding": "1.0.3",
"versionStartIncluding": "0.9.13"
},
{
"criteria": "cpe:2.3:a:musl-libc:musl:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "E0BFA660-201A-4467-A474-2F27D2DD6F35",
"versionEndExcluding": "1.1.2",
"versionStartIncluding": "1.1.0"
}
],
"operator": "OR"
}
]
}
]