Buffer overflow in Pcre
CVE-2017-7246
Stack-based buffer overflow in the pcre32_copy_substring function in pcre_get.c in libpcre1 in PCRE 8.40 allows remote attackers to cause a denial of service (WRITE of size 268) or possibly have unspecified other impact via a crafted file.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.026 (84.7th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 85th percentile — 84.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.026 · newest: 0.026 · 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-two-stack-based-buffer-overflow-write-i… (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-2017-7246?
- CVE-2017-7246 is a high-severity vulnerability in Pcre, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 7.8/10. Published 2017-03-23.
- How severe is CVE-2017-7246?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2017-7246 known to be exploited?
- 8 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.