CVE-2016-2383: canonical ubuntu_linux
CVSS: 5.5v3.1MediumModified
AliasesUBUNTU-CVE-2016-2383DEBIAN-CVE-2016-2383
Published 27-04-2016Last modified 05-08-2024
Vulnerability summary
CVE-2016-2383 is a medium (CVSS 5.5) vulnerability in canonical ubuntu_linux. EPSS estimates a 0.37% chance of exploitation in the next 30 days, higher than 29.8% of scored vulnerabilities.
CVSS score
5.5/10
010
Medium · v3.1 (NVD)EPSS score
0.37%
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 1 · Related 1Timeline
- 27-04-2016PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
The adjust_branches function in kernel/bpf/verifier.c in the Linux kernel before 4.5 does not consider the delta in the backward-jump case, which allows local users to obtain sensitive information from kernel memory by creating a packet filter and then loading crafted BPF instructions.
CVSS metrics
5 scores · 3 sources · 3 versionsMedium 5.5Preferred score · NVD (NIST)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:NSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Medium 5.5Preferred score · OSV · Ubuntu (Ecosystem advisory) · calculated from vector
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:NSourcesSingle source
Low 2.1Preferred score · NVD (NIST)
AV:L/AC:L/Au:N/C:P/I:N/A:NSourcesSingle source
EPSS trend
Probability
0.37%
Chance of exploitation in the next 30 days
Percentile
30%
Versus all other CVEs
30-day change
0.00 pp
From 0.37% on 19-09-2026
19-09-202619-10-2026
EPSS score0.37%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
Canonical1 product
- ubuntu_linuxEOL14.04 | 15.10
Debian1 product
- linux< 4.4.2-1
Linux1 product
- linux_kernel< 4.5.0 | 4.5.0:rc1 | 4.5.0:rc2 | 4.5.0:rc3
Opensuse1 product
- leapEOL42.1
Ubuntu1 product
- linux-lts-wily< 4.2.0-35.40~14.04.1
5 vendors · 5 products
References
14 links- github.com/torvalds/linux/commit/a1b14d27ed0965838350f1377ff97c93ee383492X Refsource CONFIRMPatchThird Party Advisory
- www.openwall.com/lists/oss-security/2016/02/14/1Mailing ListX Refsource MLISTThird Party AdvisoryREPORT
- lists.opensuse.org/opensuse-security-announce/2016-04/msg00015.htmlVendor AdvisoryX Refsource SUSEThird Party Advisory
