CVE-2017-7186 (GCVE-0-2017-7186)
Vulnerability from cvelistv5 – Published: 2017-03-20 00:00 – Updated: 2024-08-05 15:56
VLAI
EPSS
VEX
Summary
libpcre1 in PCRE 8.40 and libpcre2 in PCRE2 10.23 allow remote attackers to cause a denial of service (segmentation violation for read access, and application crash) by triggering an invalid Unicode property lookup.
Severity
7.5 (High)
CWE
- n/a
Assigner
References
10 references
| URL | Tags |
|---|---|
| https://bugs.exim.org/show_bug.cgi?id=2052 | x_refsource_CONFIRM |
| https://security.gentoo.org/glsa/201710-09 | vendor-advisoryx_refsource_GENTOO |
| https://vcs.pcre.org/pcre/code/trunk/pcre_interna… | x_refsource_CONFIRM |
| https://vcs.pcre.org/pcre2/code/trunk/src/pcre2_i… | x_refsource_CONFIRM |
| https://vcs.pcre.org/pcre/code/trunk/pcre_ucd.c?r… | x_refsource_CONFIRM |
| http://www.securityfocus.com/bid/97030 | vdb-entryx_refsource_BID |
| https://blogs.gentoo.org/ago/2017/03/14/libpcre-i… | x_refsource_MISC |
| https://vcs.pcre.org/pcre2/code/trunk/src/pcre2_u… | x_refsource_CONFIRM |
| https://access.redhat.com/errata/RHSA-2018:2486 | vendor-advisoryx_refsource_REDHAT |
| https://security.gentoo.org/glsa/201710-25 | vendor-advisoryx_refsource_GENTOO |
Date Public
2017-03-19 00:00
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Advisory\"]},{\"url\":\"https://security.gentoo.org/glsa/201710-09\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://security.gentoo.org/glsa/201710-25\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://vcs.pcre.org/pcre/code/trunk/pcre_internal.h?r1=1649\u0026r2=1688\u0026sortby=date\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://vcs.pcre.org/pcre/code/trunk/pcre_ucd.c?r1=1490\u0026r2=1688\u0026sortby=date\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://vcs.pcre.org/pcre2/code/trunk/src/pcre2_internal.h?r1=600\u0026r2=670\u0026sortby=date\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://vcs.pcre.org/pcre2/code/trunk/src/pcre2_ucd.c?r1=316\u0026r2=670\u0026sortby=date\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]}]}}",
"redhat_vex": {
"aggregate_severity": "Moderate",
"current_release_date": "2026-08-04T21:53:08+00:00",
"cve": "CVE-2017-7186",
"id": "CVE-2017-7186",
"initial_release_date": "2017-02-23T00:00:00+00:00",
"product_status:fixed": "1",
"product_status:known_affected": "10",
"product_status:known_not_affected": "110",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "pcre: Invalid Unicode property lookup (8.41/7, 10.24/2)",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2017/cve-2017-7186.json",
"version": "3"
},
"suse_vex": {
"aggregate_severity": "moderate",
"current_release_date": "2026-09-05T01:20:33Z",
"cve": "CVE-2017-7186",
"id": "CVE-2017-7186",
"initial_release_date": "2023-02-15T04:48:13Z",
"product_status:known_affected": "328",
"product_status:known_not_affected": "624",
"product_status:recommended": "1050",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2017-7186",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2017-7186.json",
"version": "42"
}
}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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