Buffer overflow in Haproxy
CVE-2015-3281
The buffer_slow_realign function in HAProxy 1.5.x before 1.5.14 and 1.6-dev does not properly realign a buffer that is used for pending outgoing data, which allows remote attackers to obtain sensitive information (uninitialized memory contents of previous requests) via a crafted request.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v2 metric
CVSS v2 base score 5.0 (Medium). Vector: AV:N/AC:L/Au:N/C:P/I:N/A:N. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.043 (91.1th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 91st percentile — 91.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.043 · newest: 0.043 · change: +0.001
Affected products
- Haproxy — versions 1.5, 1.5.0, 1.5.1
- Canonical Ubuntu Linux — versions 14.10, 15.04
- Debian Linux — versions 8.0
- openSUSE OpenStack Cloud — versions 5
- openSUSE — versions 13.2
- Red Hat Enterprise Linux Desktop — versions 7.0
- Red Hat Enterprise Linux Server — versions 7.0
- Red Hat Enterprise Linux Server Aus — versions 7.3, 7.4, 7.6
- Red Hat Enterprise Linux Server Eus — versions 7.1, 7.2, 7.3
- Red Hat Enterprise Linux Server Tus — versions 7.3, 7.6
Weakness classification (CWE)
References
- rhn.redhat.com/errata/RHSA-2015-1741.html (vendor-advisory, Third Party Advisory)
- lists.opensuse.org/opensuse-security-announce/2015-10/msg00023.html (vendor-advisory, Mailing List, Third Party Advisory)
- www.haproxy.org/news.html (Patch, Vendor Advisory)
- rhn.redhat.com/errata/RHSA-2015-2666.html (vendor-advisory, Third Party Advisory)
- www.ubuntu.com/usn/USN-2668-1 (vendor-advisory, Third Party Advisory)
- lists.opensuse.org/opensuse-security-announce/2015-10/msg00001.html (vendor-advisory, Mailing List, Third Party Advisory)
- git.haproxy.org/
- www.debian.org/security/2015/dsa-3301 (vendor-advisory, Third Party Advisory)
- www.securityfocus.com/bid/75554 (VDB Entry, Third Party Advisory, vdb-entry)