CVE-2011-1023
CVE-2011-1023 is a medium-severity vulnerability in Linux Linux Kernel with a CVSS 2.0 base score of 4.9. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.
Key facts
- Severity: Medium (CVSS 2.0 base score 4.9)
- EPSS exploit prediction: 0% (38th percentile)
- Actively exploited: Not listed in CISA KEV
- Affected product: Linux Linux Kernel
- Published:
- Last modified:
Description
The Reliable Datagram Sockets (RDS) subsystem in the Linux kernel before 2.6.38 does not properly handle congestion map updates, which allows local users to cause a denial of service (BUG_ON and system crash) via vectors involving (1) a loopback (aka loop) transmit operation or (2) an InfiniBand (aka ib) transmit operation.
Frequently asked questions
- What is CVE-2011-1023?
- The Reliable Datagram Sockets (RDS) subsystem in the Linux kernel before 2.6.38 does not properly handle congestion map updates, which allows local users to cause a denial of service (BUG_ON and system crash) via vectors involving (1) a loopback (aka loop) transmit operation or (2) an InfiniBand (aka ib) transmit operation.
- How severe is CVE-2011-1023?
- CVE-2011-1023 has a CVSS 2.0 base score of 4.9, rated medium severity.
- Is CVE-2011-1023 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (38th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2011-1023?
- CVE-2011-1023 primarily affects Linux Linux Kernel. In total, 12 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2011-1023?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2011-1023 published?
- CVE-2011-1023 was published on 2012-06-21 and last updated on 2026-06-16.
References
- http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.38
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=6094628bfd94323fc1cea05ec2c6affd98c18f7f
- http://www.openwall.com/lists/oss-security/2011/03/03/2
- https://bugzilla.redhat.com/show_bug.cgi?id=680345
- https://github.com/torvalds/linux/commit/6094628bfd94323fc1cea05ec2c6affd98c18f7f
Affected products (12)
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.37:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.37:rc1:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.37:rc2:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.37:rc3:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.37:rc4:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.37:rc5:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.37.1:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.37.2:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.37.3:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.37.4:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.37.5:*:*:*:*:*:*:*
More vulnerabilities in Linux Linux Kernel
- CVE-2023-2163 — Critical (CVSS 10.0): Incorrect verifier pruning in BPF in Linux Kernel >=5.4 leads to unsafe code paths being incorrectly marked as safe,…
- CVE-2015-8104 — Critical (CVSS 10.0): The KVM subsystem in the Linux kernel through 4.2.6, and Xen 4.3.x through 4.6.x, allows guest OS users to cause a…
- CVE-2015-1421 — Critical (CVSS 10.0): Use-after-free vulnerability in the sctp_assoc_update function in net/sctp/associola.c in the Linux kernel before…
- CVE-2014-2523 — Critical (CVSS 10.0): net/netfilter/nf_conntrack_proto_dccp.c in the Linux kernel through 3.13.6 uses a DCCP header pointer incorrectly,…
- CVE-2010-2495 — Critical (CVSS 10.0): The pppol2tp_xmit function in drivers/net/pppol2tp.c in the L2TP implementation in the Linux kernel before 2.6.34 does…
- CVE-2010-2521 — Critical (CVSS 10.0): Multiple buffer overflows in fs/nfsd/nfs4xdr.c in the XDR implementation in the NFS server in the Linux kernel before…