CVE-2015-3636: canonical ubuntu_linux
Vulnerability summary
CVE-2015-3636 is a medium (CVSS 4.9) vulnerability in canonical ubuntu_linux. EPSS estimates a 2.47% chance of exploitation in the next 30 days, higher than 84.5% of scored vulnerabilities.
Not severe (CVSS 4.9, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 18 · Related 10Timeline
- 06-08-2015PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
Description
The ping_unhash function in net/ipv4/ping.c in the Linux kernel before 4.0.3 does not initialize a certain list data structure during an unhash operation, which allows local users to gain privileges or cause a denial of service (use-after-free and system crash) by leveraging the ability to make a SOCK_DGRAM socket system call for the IPPROTO_ICMP or IPPROTO_ICMPV6 protocol, and then making a connect system call after a disconnect.
CVSS metrics
1 score · 1 source · 1 versionEPSS trend
Probability
2.47%
Chance of exploitation in the next 30 days
Percentile
85%
Versus all other CVEs
30-day change
No change 0.00 pp
From 2.47% 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
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
Known conditions: local access, no authentication (CVSS vector). Other conditions: not stated in public data.
Redhat23 products
- enterprise_linuxEOL6.0
- kernel< 0:2.6.32-431.61.2.el6 | < 0:2.6.32-358.65.1.el6
- kernel-abi-whitelists< 0:2.6.32-431.61.2.el6
- kernel-bootwrapper< 0:2.6.32-431.61.2.el6
- kernel-debug< 0:2.6.32-431.61.2.el6 | < 0:2.6.32-358.65.1.el6
Ubuntu3 products
- linux< 3.13.0-54.91
- linux-lts-utopic< 3.16.0-39.53~14.04.1
- linux-lts-vivid< 3.19.0-20.20~14.04.1
Debian2 products
- linux< 4.0.2-1
- debian_linuxEOL7.0
Canonical1 product
- ubuntu_linuxEOL12.04
Linux1 product
- linux_kernel≤ 4.0.2
5 vendors · 30 products
References
48 links
- lists.fedoraproject.org/pipermail/package-announce/2015-May/158804.htmlVendor AdvisoryX Refsource FEDORA
Show all 48 references
- www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.htmlX Refsource CONFIRM
- github.com/torvalds/linux/commit/a134f083e79fb4c3d0a925691e732c56911b4326X Refsource CONFIRM
- lists.fedoraproject.org/pipermail/package-announce/2015-May/157897.htmlVendor AdvisoryX Refsource FEDORA
- www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.0.3X Refsource CONFIRM
- git.kernel.org/cgit/…X Refsource CONFIRM
- lists.fedoraproject.org/pipermail/package-announce/2015-May/157788.htmlVendor AdvisoryX Refsource FEDORA
