CVE-2017-7186: pcre
CVSS: 7.5v3.0HighModified
AliasesALPINE-CVE-2017-7186UBUNTU-CVE-2017-7186DEBIAN-CVE-2017-7186
Published 20-03-2017Last modified 05-08-2024
Vulnerability summary
CVE-2017-7186 is a high (CVSS 7.5) vulnerability in pcre. EPSS estimates a 5.03% chance of exploitation in the next 30 days, higher than 92.1% of scored vulnerabilities.
CVSS score
7.5/10
010
High · v3.0 (NVD)EPSS score
5.03%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 3 · Related 2Timeline
- 20-03-2017PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
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.
CVSS metrics
5 scores · 4 sources · 2 versionsHigh 7.5Preferred score · NVD (NIST)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HSourcesAll 4 agree
- OSV · AlpineEcosystem advisory · calculated7.5HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · UbuntuEcosystem advisory · calculated7.5HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated7.5HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Medium 5.0Preferred score · NVD (NIST)
AV:N/AC:L/Au:N/C:N/I:N/A:PSourcesSingle source
EPSS trend
Probability
5.03%
Chance of exploitation in the next 30 days
Percentile
92%
Versus all other CVEs
30-day change
0.00 pp
From 5.03% on 20-09-2026
20-09-202620-10-2026
EPSS score5.03%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Debian2 products
- pcre2< 10.22-3
- pcre3< 2:8.39-3
Ubuntu2 products
- pcre2All versions (No fix recorded)
- pcre3< 2:8.38-3.1ubuntu0.1~esm2
Alpine1 product
- pcre< 8.40-r2
4 vendors · 7 products
References
15 links- vcs.pcre.org/pcre2/code/trunk/src/pcre2_internal.h?r1=600&r2=670&sortby=dateX Refsource CONFIRMPatch
- blogs.gentoo.org/ago/2017/03/14/libpcre-invalid-memory-read-in-match-pcre_exec-c/X Refsource MISCPatchThird Party AdvisoryREPORT
