Out-of-bounds Read in Pcre
CVE-2017-7244
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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.020 (79.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 80th percentile — 79.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.020 · newest: 0.020 · change: 0.000
Affected products
- Pcre — versions 8.40
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.securityfocus.com/bid/97067 (VDB Entry, Third Party Advisory, vdb-entry)
- blogs.gentoo.org/ago/2017/03/20/libpcre-invalid-memory-read-in-_pcre32_xclass-p… (VDB Entry, Third Party Advisory)
- access.redhat.com/errata/RHSA-2018:2486 (vendor-advisory)
- security.gentoo.org/glsa/201710-25 (vendor-advisory)
Frequently asked questions
- What is CVE-2017-7244?
- CVE-2017-7244 is a medium-severity vulnerability in Pcre, classified under Out-of-bounds Read. CVSS score: 5.5/10. Published 2017-03-23.
- How severe is CVE-2017-7244?
- Medium severity. CVSS v3 base score is 5.5 out of 10.
- Is CVE-2017-7244 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.