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    CVE-2018-18690

    In the Linux kernel before 4.17, a local attacker able to set attributes on an xfs filesystem could make this filesystem non-operational until the next mount by triggering an unchecked error condition during an xfs attribute change, because xfs_attr_shortform_addname in fs/xfs/libxfs/xfs_attr.c mishandles ATTR_REPLACE operations with conversion of an attr from short to long form.

    Published:Mar 15, 2018
    Last Modified:Nov 21, 2024
    EPS:Oct 26, 2018
    EPSS Score:0.00102
    CVSS Score:5.5

    Affected Products

    Vendor
    Canonical
    Product
    Ubuntu Linux
    Vendor
    Debian
    Product
    Debian Linux
    Vendor
    Linux
    Product
    Linux Kernel
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Redhat
    Product
    Rhel Extras Rt

    Exploits

    https://bugzilla.kernel.org/show_bug.cgi?id=199119https://bugzilla.kernel.org/show_bug.cgi?id=199119

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

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    CVE-2026-13367 (CVSS 7.8) — IBM Informix Dynamic Server 14.10, and 15.0 contain a local privilege escalation vulnerability in the oninit s…
    CVE-2026-47337 (CVSS 3.3) — Ubuntu Linux 6.8, 6.17 and 7.0 contain SAUCE patches with a possible NULL pointer dereference in the handling …
    CVE-2026-47336 (CVSS 3.3) — Ubuntu Linux 6.8 contains SAUCE patches with a possible use of an uninitialized variable in AppArmor AF_INET/A…
    CVE-2026-47335 (CVSS 5.5) — Ubuntu Linux 6.8 contains SAUCE patches with a possible NULL pointer dereference in the handling of AppArmor n…
    CVE-2026-47334 (CVSS 5.5) — Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which incorrectly sleep while holding a spinlock…
    CVE-2026-47333 (CVSS 7.8) — Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which can potentially incorrectly compute the si…
    CVE-2026-47332 (CVSS 5.5) — Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which incorrectly validate the size of an intern…
    CVE-2026-47331 (CVSS 7.8) — Ubuntu Linux 6.8 contains AppArmor SAUCE patches which fail to acquire a lock when modifying a linked list. An…
    CVE-2026-47330 (CVSS 3.3) — Ubuntu Linux 6.8, 7.17 and 7.0 contain AppArmor SAUCE patches which can, under certain circumstances, use an u…

    References

    http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=7b38460dc8e4eafba06c78f8e37099d3b34d473c
    http://www.securityfocus.com/bid/105753
    https://bugzilla.kernel.org/show_bug.cgi?id=199119
    https://bugzilla.suse.com/show_bug.cgi?id=1105025
    https://github.com/torvalds/linux/commit/7b38460dc8e4eafba06c78f8e37099d3b34d473c
    https://lists.debian.org/debian-lts-announce/2019/03/msg00017.html
    https://lists.debian.org/debian-lts-announce/2019/03/msg00034.html
    https://lists.debian.org/debian-lts-announce/2019/04/msg00004.html
    https://usn.ubuntu.com/3847-1/
    https://usn.ubuntu.com/3847-2/
    https://usn.ubuntu.com/3847-3/
    https://usn.ubuntu.com/3848-1/
    https://usn.ubuntu.com/3848-2/
    https://usn.ubuntu.com/3849-1/
    https://usn.ubuntu.com/3849-2/
    http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=7b38460dc8e4eafba06c78f8e37099d3b34d473c
    http://www.securityfocus.com/bid/105753
    https://bugzilla.kernel.org/show_bug.cgi?id=199119
    https://bugzilla.suse.com/show_bug.cgi?id=1105025
    https://github.com/torvalds/linux/commit/7b38460dc8e4eafba06c78f8e37099d3b34d473c
    https://lists.debian.org/debian-lts-announce/2019/03/msg00017.html
    https://lists.debian.org/debian-lts-announce/2019/03/msg00034.html
    https://lists.debian.org/debian-lts-announce/2019/04/msg00004.html
    https://usn.ubuntu.com/3847-1/
    https://usn.ubuntu.com/3847-2/
    https://usn.ubuntu.com/3847-3/
    https://usn.ubuntu.com/3848-1/
    https://usn.ubuntu.com/3848-2/
    https://usn.ubuntu.com/3849-1/
    https://usn.ubuntu.com/3849-2/

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High