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CVE-2015-3339

19
FAUCET Score

CVE-2015-3339 describes a race condition in the Linux kernel's prepare_binprm function (fs/exec.c) affecting versions before 3.19.6, including Debian distributions. This flaw allows a local attacker to elevate privileges by executing a setuid program during a specific window when a chown operation is changing ownership to root but the setuid bit hasn't been stripped yet. With a CVSS score of 6.2 (AV:L/AC:H/Au:N/C:C/I:C/A:C), it indicates high impact on confidentiality, integrity, and availability, but requires high attack complexity. There is no evidence of active exploitation, public exploit code, or significant community discussion, suggesting it is not a widely targeted vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
<= 3.19.5CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
7.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

6.2MEDIUM

AV:L/AC:H/Au:N/C:C/I:C/A:C

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
LOCAL
Access Complexity
HIGH
Authentication
NONE
Exploitability Score
1.9
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.32%
Probability of exploitation in next 30 days
EPSS Percentile
24.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0032 is in the 21st percentile among its peer group of 1,595 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (5)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: kernel-0:2.6.32-573.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel-rt-0:3.10.0-327.rt56.204.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel-0:3.10.0-327.el7
View patch
redhatno patchvia redhat_api
Product: Red Hat Enterprise MRG 2Fixed in: realtime-kernel
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: kernel

Vendor Advisories (1)

redhatCVE-2015-3339Moderate

kernel: race condition between chown() and execve()

Apr 20, 2015

References

git.kernel.org
lists.fedoraproject.org / pipermail/package-announce/2015-May/157897.html
lists.fedoraproject.org / pipermail/package-announce/2015-May/158804.html
lists.opensuse.org / opensuse-security-announce/2015-08/msg00011.html
lists.opensuse.org / opensuse-security-announce/2015-09/msg00007.html
lists.opensuse.org / opensuse-security-announce/2015-09/msg00008.html
lists.opensuse.org / opensuse-security-announce/2015-09/msg00009.html
lists.opensuse.org / opensuse-security-announce/2015-09/msg00011.html
lists.opensuse.org / opensuse-security-announce/2016-08/msg00038.html
rhn.redhat.com / errata/RHSA-2015-1272.html
bugzilla.redhat.com / show_bug.cgi
github.com / torvalds/linux/commit/8b01fc86b9f425899f8a3a8fc1c47d73c2c20543
debian.org / security/2015/dsa-3237
kernel.org / pub/linux/kernel/v3.x/ChangeLog-3.19.6
Vendor Advisory
openwall.com / lists/oss-security/2015/04/20/5
oracle.com / technetwork/topics/security/linuxbulletinjan2016-2867209.html
oracle.com / technetwork/topics/security/linuxbulletinoct2015-2719645.html
securitytracker.com / id/1032412