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    CVE-2020-10756

    An out-of-bounds read vulnerability was found in the SLiRP networking implementation of the QEMU emulator. This flaw occurs in the icmp6_send_echoreply() routine while replying to an ICMP echo request, also known as ping. This flaw allows a malicious guest to leak the contents of the host memory, resulting in possible information disclosure. This flaw affects versions of libslirp before 4.3.1.

    Published:May 27, 2020
    Last Modified:Nov 21, 2024
    EPS:Jul 9, 2020
    EPSS Score:0.00036
    CVSS Score:6.5

    Affected Products

    Vendor
    Canonical
    Product
    Ubuntu Linux
    Vendor
    Debian
    Product
    Debian Linux
    Vendor
    Libslirp Project
    Product
    Libslirp
    Vendor
    Opensuse
    Product
    Leap
    Vendor
    Redhat
    Product
    Advanced Virtualization
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Redhat
    Product
    Openstack

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-125 Out-of-bounds Read

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-540 Overread Buffers

    Related CVEs

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    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…
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    References

    http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00035.html
    http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00040.html
    https://bugzilla.redhat.com/show_bug.cgi?id=1835986
    https://lists.debian.org/debian-lts-announce/2020/07/msg00020.html
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JYTZ32P67PZER6P7TW6FQK3SZRKQLVEI/
    https://security.netapp.com/advisory/ntap-20201001-0001/
    https://usn.ubuntu.com/4437-1/
    https://usn.ubuntu.com/4467-1/
    https://www.debian.org/security/2020/dsa-4728
    https://www.zerodayinitiative.com/advisories/ZDI-20-1005/
    http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00035.html
    http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00040.html
    https://bugzilla.redhat.com/show_bug.cgi?id=1835986
    https://lists.debian.org/debian-lts-announce/2020/07/msg00020.html
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JYTZ32P67PZER6P7TW6FQK3SZRKQLVEI/
    https://security.netapp.com/advisory/ntap-20201001-0001/
    https://usn.ubuntu.com/4437-1/
    https://usn.ubuntu.com/4467-1/
    https://www.debian.org/security/2020/dsa-4728
    https://www.zerodayinitiative.com/advisories/ZDI-20-1005/

    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