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 expression, as demonstrated by a JavaScript RegExp object encountered by Konqueror.
Vulnerability class: Buffer Overflow
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.064 (93.4th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 93rd percentile — 93.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.064 · newest: 0.064 · change: 0.000
Affected products
- Oracle Linux — versions 7
- Pcre
- PHP
- Fedoraproject Fedora — versions 22
- Red Hat Enterprise Linux Desktop — versions 7.0
- Red Hat Enterprise Linux Eus — versions 7.2, 7.3, 7.4
- Red Hat Enterprise Linux Server — versions 7.0
- Red Hat Enterprise Linux Server Aus — versions 7.2, 7.3, 7.4
- Red Hat Enterprise Linux Server Tus — versions 7.2, 7.3, 7.6
- Red Hat Enterprise Linux Workstation — versions 7.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.openwall.com/lists/oss-security/2015/11/29/1 (mailing-list, Mailing List, Third Party Advisory)
- access.redhat.com/errata/RHSA-2016:1132 (vendor-advisory, Third Party Advisory)
- www.securityfocus.com/bid/82990 (VDB Entry, Third Party Advisory, vdb-entry)
- www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html (Third Party Advisory)
- www-01.ibm.com/support/docview.wss (Third Party Advisory)
- rhn.redhat.com/errata/RHSA-2016-1025.html (vendor-advisory, Third Party Advisory)
- rhn.redhat.com/errata/RHSA-2016-2750.html (vendor-advisory, Third Party Advisory)
- lists.fedoraproject.org/pipermail/package-announce/2016-January/174931.html (vendor-advisory, Mailing List, Third Party Advisory)
- h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay (Third Party Advisory)
- bto.bluecoat.com/security-advisory/sa128 (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.