CVE-2017-1000381: c-ares_project c-ares
Vulnerability summary
CVE-2017-1000381 is a high (CVSS 7.5) vulnerability in c-ares_project c-ares. EPSS estimates a 3.31% chance of exploitation in the next 30 days, higher than 88.5% of scored vulnerabilities.
Severe, CVSS 7.5 (NVD); no exploitation reported by the 5 checked sources; EPSS 3% (FIRST, 03-11-2026)
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 6 · Related 4Timeline
- 07-07-2017PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
The c-ares function `ares_parse_naptr_reply()`, which is used for parsing NAPTR responses, could be triggered to read memory outside of the given input buffer if the passed in DNS response packet was crafted in a particular way.
CVSS metrics
6 scores · 4 sources · 3 versions- OSV · AlpineEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- OSV · UbuntuEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- OSV · DebianEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS trend
Probability
3.31%
Chance of exploitation in the next 30 days
Percentile
89%
Versus all other CVEs
30-day change
No change 0.00 pp
From 3.31% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.
Suse6 products
- libcares2&distro=SUSE Linux Enterprise Desktop 12 SP2< 1.9.1-8.1
- libcares2&distro=SUSE Linux Enterprise Server 12 SP2< 1.9.1-8.1
- libcares2&distro=SUSE Linux Enterprise Server for Raspberry Pi 12 SP2< 1.9.1-8.1
- libcares2&distro=SUSE Linux Enterprise Server for SAP Applications 12 SP2< 1.9.1-8.1
- libcares2&distro=SUSE Linux Enterprise Software Development Kit 12 SP2< 1.9.1-8.1
Alpine3 products
- c-ares< 1.12.0-r1
- nodejs< 6.11.1-r0 | < 6.7.0-r1 | < 6.9.5-r1 | < 6.10.3-r1
- nodejs-current< 7.10.1-r0
Ubuntu2 products
- c-ares< 1.10.0-2ubuntu0.2 | < 1.10.0-3ubuntu0.2
- nodejs< 4.2.6~dfsg-1ubuntu4.2+esm1
C-ares1 product
- c-ares1.8.0 | 1.9.0 | 1.9.1 | 1.10.0 | 1.12.0
C-ares_project1 product
- c-ares1.11.0 | 1.11.0:rc1
Debian1 product
- c-ares< 1.12.0-4 | < 1.9.1-3+deb7u2
Mageia1 product
- c-ares< 1.10.0-5.2.mga5
Nodejs1 product
- node.js≥ 4.0.0, ≤ 4.1.2 | ≥ 4.2.0, < 4.8.4 | ≥ 5.0.0, ≤ 5.12.0 | ≥ 6.0.0, ≤ 6.8.1 | ≥ 6.9.0, < 6.11.1 | ≥ 7.0.0, < 7.10.1 | ≥ 8.0.0, < 8.1.4
8 vendors · 16 products
