Description
Integer overflow in the ping_init_sock function in net/ipv4/ping.c in the Linux kernel through 3.14.1 allows local users to cause a denial of service (use-after-free and system crash) or possibly gain privileges via a crafted application that leverages an improperly managed reference counter.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | linux | 3.14.4-1 | — |
| Debian 13 | linux | 3.14.4-1 | — |
| Debian 12 | linux | 3.14.4-1 | — |
| Debian 7 | linux | 3.2.57-3+deb7u1 | DSA-2926-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 14.04 LTS | linux | 3.13.0-27.50 | USN-2226-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 7 | perf +17 | 3.10.0-123.4.2.el7 | RHSA-2014:0786 |
| RHEL 6 | perf +16 | 2.6.32-431.23.3.el6 | RHSA-2014:0981 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 6.4 EUS | perf +15 | 2.6.32-358.48.1.el6 | RHSA-2014:1101 |
| Red Hat MRG 2 | kernel-rt +10 | 3.10.33-rt32.34.el6rt | RHSA-2014:0557 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 7 | perf +11 | 3.10.0-123.4.2.el7 | ELSA-2014-0786 |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Exploit-DB 1
- Linux Kernel - 'group_info' refcounter Overflow Memory Corruption EDB-32926 · dos · Apr 18, 2014
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Advisories 7
- RHSA-2014:0786 Red Hat Security Advisory: kernel security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- RHSA-2014:0557 Red Hat Security Advisory: kernel-rt security update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- RHSA-2014:1101 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- RHSA-2014:0981 Red Hat Security Advisory: kernel security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- USN-2226-1 linux vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- DSA-2926-1 linux - security update Debian Security (DSA / DLA) · Mar 9, 2026
- ELSA-2014-0786 Important: kernel security, bug fix, and enhancement update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Jul 23, 2014
References
- https://git.kernel.org/cgit/linux/kernel/git/davem/net.git/commit/?id=b04c46190219a4f845e46a459e3102137b7f6cac
- https://bugzilla.redhat.com/show_bug.cgi?id=1086730
- 1030769 vdb-entry
- 59386 third-party-advisory
- [linux-kernel] 20140411 net: ipv4: current group_info should be put after using. mailing-list
- 59599 third-party-advisory
- DSA-2926 vendor-advisory
- 66779 vdb-entry
- [oss-security] 20140411 Re: CVE request -- Linux kernel: net: ping: refcount issue in ping_init_sock() function mailing-list