CVE-2015-0239: canonical ubuntu_linux Improper Privilege Management
Vulnerability summary
CVE-2015-0239 is a medium (CVSS 4.4) Improper Privilege Management vulnerability in canonical ubuntu_linux. EPSS estimates a 0.64% chance of exploitation in the next 30 days, higher than 50.8% of scored vulnerabilities. 1 public exploit is recorded.
Not severe (CVSS 4.4, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 8 · Related 2Timeline
- 02-03-2015PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
Description
The em_sysenter function in arch/x86/kvm/emulate.c in the Linux kernel before 3.18.5, when the guest OS lacks SYSENTER MSR initialization, allows guest OS users to gain guest OS privileges or cause a denial of service (guest OS crash) by triggering use of a 16-bit code segment for emulation of a SYSENTER instruction.
CVSS metrics
1 score · 1 source · 1 versionEPSS trend
Probability
0.64%
Chance of exploitation in the next 30 days
Percentile
51%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.64% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
1 foundExploit Reference (openwall.com)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Known conditions: local access, no authentication (CVSS vector). Other conditions: not stated in public data.
Redhat3 products
Debian2 products
- linux< 3.16.7-ckt4-2
- debian_linuxEOL7.0 | 8.0
Ubuntu2 products
- linux< 3.13.0-46.75
- linux-lts-utopic< 3.16.0-31.41~14.04.1
Canonical1 product
- ubuntu_linuxEOL12.04 | 14.04 | 14.10
Linux1 product
- linux_kernel< 3.18.5
Oracle1 product
- linuxEOL5 | 7
6 vendors · 10 products
References
27 links
- www.openwall.com/lists/oss-security/2015/01/27/6Mailing ListX Refsource MLISTExploitThird Party Advisory
- git.kernel.orgX Refsource CONFIRM
- www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.htmlX Refsource CONFIRMThird Party Advisory
- github.com/torvalds/linux/commit/f3747379accba8e95d70cec0eae0582c8c182050X Refsource CONFIRMPatchThird Party Advisory
Show all 27 references
- www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.htmlX Refsource CONFIRMThird Party Advisory
- www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.18.5X Refsource CONFIRMRelease NotesVendor Advisory
- www.mandriva.com/security/advisories?name=MDVSA-2015:058Vendor AdvisoryX Refsource MANDRIVAThird Party Advisory