Buffer overflow in Tigervnc
CVE-2017-5581
Buffer overflow in the ModifiablePixelBuffer::fillRect function in TigerVNC before 1.7.1 allows remote servers to execute arbitrary code via an RRE message with subrectangle outside framebuffer boundaries.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.042 (90.7th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 91st percentile — 90.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.042 · newest: 0.042 · change: 0.000
Affected products
Weakness classification (CWE)
References
- www.openwall.com/lists/oss-security/2017/01/22/1 (mailing-list, Patch, Mailing List, Third Party Advisory)
- rhn.redhat.com/errata/RHSA-2017-0630.html (vendor-advisory)
- access.redhat.com/errata/RHSA-2017:2000 (vendor-advisory)
- security.gentoo.org/glsa/201702-19 (vendor-advisory)
- github.com/TigerVNC/tigervnc/pull/399 (Patch, Third Party Advisory)
- github.com/TigerVNC/tigervnc/commit/18c020124ff1b2441f714da2017f63dba50720ba (Patch, Third Party Advisory)
- github.com/TigerVNC/tigervnc/releases/tag/v1.7.1 (Third Party Advisory, Release Notes)
- www.openwall.com/lists/oss-security/2017/01/25/6 (mailing-list, Patch, Mailing List, Third Party Advisory)
- www.securityfocus.com/bid/95789 (VDB Entry, Third Party Advisory, vdb-entry)
Frequently asked questions
- What is CVE-2017-5581?
- CVE-2017-5581 is a critical-severity vulnerability in Tigervnc, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 9.8/10. Published 2017-02-28.
- How severe is CVE-2017-5581?
- Critical severity. CVSS v3 base score is 9.8 out of 10.