CVE-2013-1819

CVE-2013-1819 is a medium-severity vulnerability in Linux Linux Kernel with a CVSS 2.0 base score of 4.6. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-20.

Key facts

• Severity: Medium (CVSS 2.0 base score 4.6)
• EPSS exploit prediction: 0% (35th percentile)
• Actively exploited: Not listed in CISA KEV
• Weakness: CWE-20
• Affected product: Linux Linux Kernel
• Published: 2013-03-06
• Last modified: 2026-06-16

Description

The _xfs_buf_find function in fs/xfs/xfs_buf.c in the Linux kernel before 3.7.6 does not validate block numbers, which allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact by leveraging the ability to mount an XFS filesystem containing a metadata inode with an invalid extent map.

Frequently asked questions

What is CVE-2013-1819?

The _xfs_buf_find function in fs/xfs/xfs_buf.c in the Linux kernel before 3.7.6 does not validate block numbers, which allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact by leveraging the ability to mount an XFS filesystem containing a metadata inode with an invalid extent map.

How severe is CVE-2013-1819?

CVE-2013-1819 has a CVSS 2.0 base score of 4.6, rated medium severity.

Is CVE-2013-1819 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2013-1819?

CVE-2013-1819 primarily affects Linux Linux Kernel. In total, 176 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2013-1819?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2013-1819 published?

CVE-2013-1819 was published on 2013-03-06 and last updated on 2026-06-16.

References

• http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=eb178619f930fa2ba2348de332a1ff1c66a31424
• http://lists.opensuse.org/opensuse-security-announce/2013-09/msg00003.html
• http://lists.opensuse.org/opensuse-security-announce/2013-09/msg00004.html
• http://lists.opensuse.org/opensuse-updates/2013-12/msg00129.html
• http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.7.6
• http://www.openwall.com/lists/oss-security/2013/03/05/10
• http://www.ubuntu.com/usn/USN-1968-1
• http://www.ubuntu.com/usn/USN-1969-1
• http://www.ubuntu.com/usn/USN-1970-1
• http://www.ubuntu.com/usn/USN-1972-1
• http://www.ubuntu.com/usn/USN-1973-1
• http://www.ubuntu.com/usn/USN-1975-1
• https://bugzilla.redhat.com/show_bug.cgi?id=918009
• https://github.com/torvalds/linux/commit/eb178619f930fa2ba2348de332a1ff1c66a31424

Affected products (176)

• cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
• cpe:2.3:o:linux:linux_kernel:3.0:rc1:*:*:*:*:*:*
• cpe:2.3:o:linux:linux_kernel:3.0:rc2:*:*:*:*:*:*
• cpe:2.3:o:linux:linux_kernel:3.0:rc3:*:*:*:*:*:*
• cpe:2.3:o:linux:linux_kernel:3.0:rc4:*:*:*:*:*:*
• cpe:2.3:o:linux:linux_kernel:3.0:rc5:*:*:*:*:*:*
• cpe:2.3:o:linux:linux_kernel:3.0:rc6:*:*:*:*:*:*
• cpe:2.3:o:linux:linux_kernel:3.0:rc7:*:*:*:*:*:*
• cpe:2.3:o:linux:linux_kernel:3.0.1:*:*:*:*:*:*:*
• cpe:2.3:o:linux:linux_kernel:3.0.2:*:*:*:*:*:*:*
• cpe:2.3:o:linux:linux_kernel:3.0.3:*:*:*:*:*:*:*
• cpe:2.3:o:linux:linux_kernel:3.0.4:*:*:*:*:*:*:*
• cpe:2.3:o:linux:linux_kernel:3.0.5:*:*:*:*:*:*:*
• cpe:2.3:o:linux:linux_kernel:3.0.6:*:*:*:*:*:*:*
• cpe:2.3:o:linux:linux_kernel:3.0.7:*:*:*:*:*:*:*
• cpe:2.3:o:linux:linux_kernel:3.0.8:*:*:*:*:*:*:*
• cpe:2.3:o:linux:linux_kernel:3.0.9:*:*:*:*:*:*:*
• cpe:2.3:o:linux:linux_kernel:3.0.10:*:*:*:*:*:*:*
• cpe:2.3:o:linux:linux_kernel:3.0.11:*:*:*:*:*:*:*
• cpe:2.3:o:linux:linux_kernel:3.0.12:*:*:*:*:*:*:*
• cpe:2.3:o:linux:linux_kernel:3.0.13:*:*:*:*:*:*:*
• cpe:2.3:o:linux:linux_kernel:3.0.14:*:*:*:*:*:*:*
• cpe:2.3:o:linux:linux_kernel:3.0.15:*:*:*:*:*:*:*
• cpe:2.3:o:linux:linux_kernel:3.0.16:*:*:*:*:*:*:*
• cpe:2.3:o:linux:linux_kernel:3.0.17:*:*:*:*:*:*:*
• cpe:2.3:o:linux:linux_kernel:3.0.18:*:*:*:*:*:*:*
• cpe:2.3:o:linux:linux_kernel:3.0.19:*:*:*:*:*:*:*
• cpe:2.3:o:linux:linux_kernel:3.0.20:*:*:*:*:*:*:*
• cpe:2.3:o:linux:linux_kernel:3.0.21:*:*:*:*:*:*:*
• cpe:2.3:o:linux:linux_kernel:3.0.22:*:*:*:*:*:*:*
• cpe:2.3:o:linux:linux_kernel:3.0.23:*:*:*:*:*:*:*
• cpe:2.3:o:linux:linux_kernel:3.0.24:*:*:*:*:*:*:*
• cpe:2.3:o:linux:linux_kernel:3.0.25:*:*:*:*:*:*:*
• cpe:2.3:o:linux:linux_kernel:3.0.26:*:*:*:*:*:*:*
• cpe:2.3:o:linux:linux_kernel:3.0.27:*:*:*:*:*:*:*
• cpe:2.3:o:linux:linux_kernel:3.0.28:*:*:*:*:*:*:*
• cpe:2.3:o:linux:linux_kernel:3.0.29:*:*:*:*:*:*:*
• cpe:2.3:o:linux:linux_kernel:3.0.30:*:*:*:*:*:*:*
• cpe:2.3:o:linux:linux_kernel:3.0.31:*:*:*:*:*:*:*
• cpe:2.3:o:linux:linux_kernel:3.0.32:*:*:*:*:*:*:*

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