Vulnerability Details : CVE-2015-1573
The nft_flush_table function in net/netfilter/nf_tables_api.c in the Linux kernel before 3.18.5 mishandles the interaction between cross-chain jumps and ruleset flushes, which allows local users to cause a denial of service (panic) by leveraging the CAP_NET_ADMIN capability.
Vulnerability category: Denial of service
Products affected by CVE-2015-1573
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2015-1573
0.04%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 6 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2015-1573
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.9
|
MEDIUM | AV:L/AC:L/Au:N/C:N/I:N/A:C |
3.9
|
6.9
|
NIST | |
|
5.5
|
MEDIUM | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
1.8
|
3.6
|
NIST |
CWE ids for CVE-2015-1573
-
Assigned by: nvd@nist.gov (Primary)
References for CVE-2015-1573
-
http://rhn.redhat.com/errata/RHSA-2015-1137.html
RHSA-2015:1137 - Security Advisory - Red Hat Customer Portal
-
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.18.5
-
https://bugzilla.redhat.com/show_bug.cgi?id=1190966
1190966 – (CVE-2015-1573) CVE-2015-1573 kernel: panic while flushing nftables rules that reference deleted chains.
-
http://www.openwall.com/lists/oss-security/2015/02/10/13
oss-security - Re: CVE-Request -- Linux kernel - panic on nftables rule flush
-
http://rhn.redhat.com/errata/RHSA-2015-1138.html
RHSA-2015:1138 - Security Advisory - Red Hat Customer Portal
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http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=a2f18db0c68fec96631c10cad9384c196e9008ac
kernel/git/torvalds/linux.git - Linux kernel source treeVendor Advisory
-
https://github.com/torvalds/linux/commit/a2f18db0c68fec96631c10cad9384c196e9008ac
netfilter: nf_tables: fix flush ruleset chain dependencies · torvalds/linux@a2f18db · GitHubVendor Advisory
-
http://www.securityfocus.com/bid/72552
Linux Kernel 'nft_flush_table' Function Local Denial of Service Vulnerability
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