Buffer overflow in Oracle Linux
CVE-2015-8391
The pcre_compile function in pcre_compile.c in PCRE before 8.38 mishandles certain [: nesting, which allows remote attackers to cause a denial of service (CPU consumption) or possibly have unspecified other impact via a crafted regular exp…
Vulnerability class: Buffer Overflow
EPSS: 0.064 (91.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Oracle Linux — versions 7
- Pcre
- Php
- Fedoraproject Fedora — versions 22
- Redhat Enterprise_linux_desktop — versions 7.0
- Redhat Enterprise_linux_eus — versions 7.2, 7.3, 7.4
- Redhat Enterprise_linux_server — versions 7.0
- Redhat Enterprise_linux_server_aus — versions 7.2, 7.3, 7.4
- Redhat Enterprise_linux_server_tus — versions 7.2, 7.3, 7.6
- Redhat Enterprise_linux_workstation — versions 7.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- [oss-security] 20151128 Re: Heap Overflow in PCRE (mailing-list, Mailing List, Third Party Advisory)
- RHSA-2016:1132 (vendor-advisory, Third Party Advisory)
- 82990 (Third Party Advisory, VDB Entry, vdb-entry)
- cve@mitre.org (Third Party Advisory)
- cve@mitre.org (Third Party Advisory)
- RHSA-2016:1025 (vendor-advisory, Third Party Advisory)
- RHSA-2016:2750 (vendor-advisory, Third Party Advisory)
- FEDORA-2015-eb896290d3 (vendor-advisory, Mailing List, Third Party Advisory)
- cve@mitre.org (Third Party Advisory)
- cve@mitre.org (Permissions Required)
Frequently asked questions
- What is CVE-2015-8391?
- CVE-2015-8391 is a critical-severity vulnerability in Oracle Linux, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 9.8/10. Published 2015-12-02.
- How severe is CVE-2015-8391?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2015-8391 known to be exploited?
- 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.