CVE-2017-7244: pcre Out-of-bounds Read
CVSS: 5.5v3.0MediumModified
AliasesALPINE-CVE-2017-7244UBUNTU-CVE-2017-7244DEBIAN-CVE-2017-7244
Published 23-03-2017Last modified 05-08-2024
Vulnerability summary
CVE-2017-7244 is a medium (CVSS 5.5) Out-of-bounds Read vulnerability in pcre. EPSS estimates a 1.99% chance of exploitation in the next 30 days, higher than 80.4% of scored vulnerabilities.
CVSS score
5.5/10
010
Medium · v3.0 (NVD)EPSS score
1.99%
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 2 · Related 1Timeline
- 23-03-2017PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
The _pcre32_xclass function in pcre_xclass.c in libpcre1 in PCRE 8.40 allows remote attackers to cause a denial of service (invalid memory read) via a crafted file.
CVSS metrics
5 scores · 4 sources · 2 versionsMedium 5.5Preferred score · NVD (NIST)
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:HSourcesAll 4 agree
- OSV · AlpineEcosystem advisory · calculated5.5MediumCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- OSV · UbuntuEcosystem advisory · calculated5.5MediumCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Medium 4.3Preferred score · NVD (NIST)
AV:N/AC:M/Au:N/C:N/I:N/A:PSourcesSingle source
EPSS trend
Probability
1.99%
Chance of exploitation in the next 30 days
Percentile
80%
Versus all other CVEs
30-day change
0.00 pp
From 1.99% on 20-09-2026
20-09-202620-10-2026
EPSS score1.99%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Alpine1 product
- pcre< 8.41-r0
Debian1 product
- pcre3< 2:8.39-3
Pcre1 product
- pcre8.40
Ubuntu1 product
- pcre3< 2:8.38-3.1ubuntu0.1~esm2
4 vendors · 4 products
References
8 links- blogs.gentoo.org/ago/2017/03/20/libpcre-invalid-memory-read-in-_pcre32_xclass-pcre_xclass-c/X Refsource MISCThird Party AdvisoryVDB EntryREPORT