CVE-2016-7944: fedoraproject fedora Integer Overflow or Wraparound
CVSS: 9.8v3.0CriticalModified
AliasesALPINE-CVE-2016-7944SUSE-SU-2016:3172-1UBUNTU-CVE-2016-7944USN-5437-1DEBIAN-CVE-2016-7944DLA-654-1
Published 13-12-2016Last modified 06-08-2024
Vulnerability summary
CVE-2016-7944 is a critical (CVSS 9.8) Integer Overflow or Wraparound vulnerability in fedoraproject fedora. EPSS estimates a 3.40% chance of exploitation in the next 30 days, higher than 88.6% of scored vulnerabilities.
CVSS score
9.8/10
010
Critical · v3.0 (NVD)EPSS score
3.40%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 3 · Related 2Timeline
- 13-12-2016PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
Description
Integer overflow in X.org libXfixes before 5.0.3 on 32-bit platforms might allow remote X servers to gain privileges via a length value of INT_MAX, which triggers the client to stop reading data and get out of sync.
CVSS metrics
5 scores · 4 sources · 2 versionsCritical 9.8Preferred score · NVD (NIST)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HSourcesAll 4 agree
- OSV · AlpineEcosystem advisory · calculated9.8CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · UbuntuEcosystem advisory · calculated9.8CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated9.8CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
High 7.5Preferred score · NVD (NIST)
AV:N/AC:L/Au:N/C:P/I:P/A:PSourcesSingle source
EPSS trend
Probability
3.40%
Chance of exploitation in the next 30 days
Percentile
89%
Versus all other CVEs
30-day change
0.00 pp
From 3.40% on 19-09-2026
19-09-202619-10-2026
EPSS score3.40%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-190Integer Overflow or WraparoundThe product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.
- CWE-264Permissions, Privileges, and Access ControlsWeaknesses in this category are related to the management of permissions, privileges, and other security features that are used to perform access control.
Affected systems
Suse3 products
- xorg-x11-libXfixes&distro=SUSE Linux Enterprise Server 11 SP4< 7.4-1.20.1
- xorg-x11-libXfixes&distro=SUSE Linux Enterprise Server for SAP Applications 11 SP4< 7.4-1.20.1
- xorg-x11-libXfixes&distro=SUSE Linux Enterprise Software Development Kit 11 SP4< 7.4-1.20.1
Alpine1 product
- libxfixes< 5.0.1-r1 | < 5.0.1-r2
Debian1 product
- libxfixes< 1:5.0.3-1 | < 1:5.0-4+deb7u2
Fedoraproject1 product
- fedoraEOL24 | 25
Ubuntu1 product
- libxfixes< 1:5.0.3-1 | < 1:5.0.1-2ubuntu0.1~esm1
X.org1 product
- libxfixes≤ 5.0.2
6 vendors · 8 products
