Buffer overflow in F5 Big-Ip Access Policy Manager
CVE-2015-7547
Multiple stack-based buffer overflows in the (1) send_dg and (2) send_vc functions in the libresolv library in the GNU C Library (aka glibc or libc6) before 2.23 allow remote attackers to cause a denial of service (crash) or possibly execute arbitrary code via a crafted DNS response that triggers a call to the getaddrinfo function with the AF_UNSPEC or AF_INET6 address family, related to performing "dual A/AAAA DNS queries" and the libnss_dns.so.2 NSS module.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.910 (99.8th percentile), scored .
High probability of exploitation in the next 30 days — patch promptly. 100th percentile — 99.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.890 · newest: 0.910 · change: +0.020
Affected products
- F5 Big-Ip Access Policy Manager — versions 12.0.0
- F5 Big-Ip Advanced Firewall Manager — versions 12.0.0
- F5 Big-Ip Analytics — versions 12.0.0
- F5 Big-Ip Application Acceleration Manager — versions 12.0.0
- F5 Big-Ip Application Security Manager — versions 12.0.0
- F5 Big-Ip Domain Name System — versions 12.0.0
- F5 Big-Ip Link Controller — versions 12.0.0
- F5 Big-Ip Local Traffic Manager — versions 12.0.0
- F5 Big-Ip Policy Enforcement Manager — versions 12.0.0
- GNU Glibc — versions 2.9, 2.10, 2.10.1
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.securitytracker.com/id/1035020 (vdb-entry)
- marc.info/ (vendor-advisory)
- lists.opensuse.org/opensuse-security-announce/2016-02/msg00037.html (vendor-advisory, Third Party Advisory)
- rhn.redhat.com/errata/RHSA-2016-0175.html (vendor-advisory)
- h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay (Third Party Advisory)
- h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay (Third Party Advisory)
- blogs.sophos.com/2016/02/29/utm-up2date-9-319-released/ (Third Party Advisory)
- sourceware.org/bugzilla/show_bug.cgi (Issue Tracking)
- marc.info/ (vendor-advisory)
- rhn.redhat.com/errata/RHSA-2016-0225.html (vendor-advisory)
Frequently asked questions
- What is CVE-2015-7547?
- CVE-2015-7547 is a high-severity vulnerability in F5 Big-Ip Access Policy Manager, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 8.1/10. Published 2016-02-18.
- How severe is CVE-2015-7547?
- High severity. CVSS v3 base score is 8.1 out of 10.
- Is CVE-2015-7547 known to be exploited?
- 94 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.