• [gentoo-announce] [ GLSA 202210-32 ] hiredis, hiredis-py: Multiple Vuln

    From glsamaker@gentoo.org@21:1/5 to All on Mon Oct 31 03:00:01 2022
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    Gentoo Linux Security Advisory GLSA 202210-32
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    https://security.gentoo.org/
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    Severity: Normal
    Title: hiredis, hiredis-py: Multiple Vulnerabilities
    Date: October 31, 2022
    Bugs: #873079, #816318
    ID: 202210-32

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    Synopsis
    ========

    An integer overflow has been found in hiredis which could result in
    arbitrary code execution.

    Background
    ==========

    hiredis is a minimalistic C client library for the Redis database.

    hiredis-py is a Python extension that wraps hiredis.

    Affected packages
    =================

    -------------------------------------------------------------------
    Package / Vulnerable / Unaffected
    -------------------------------------------------------------------
    1 dev-libs/hiredis < 1.0.1 >= 1.0.1
    2 dev-python/hiredis < 2.0.0 >= 2.0.0

    Description
    ===========

    Hiredis is vulnerable to integer overflow if provided maliciously
    crafted or corrupted `RESP` `mult-bulk` protocol data. When parsing `multi-bulk` (array-like) replies, hiredis fails to check if `count * sizeof(redisReply*)` can be represented in `SIZE_MAX`. If it can not,
    and the `calloc()` call doesn't itself make this check, it would result
    in a short allocation and subsequent buffer overflow.

    Impact
    ======

    Malicious Redis commands could result in remote code execution.

    Workaround
    ==========

    There is no known workaround at this time.

    Resolution
    ==========

    All hiredis users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=dev-libs/hiredis-1.0.1"

    All hiredis-py users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=dev-python/hiredis-2.0.0"

    References
    ==========

    [ 1 ] CVE-2021-32765
    https://nvd.nist.gov/vuln/detail/CVE-2021-32765

    Availability
    ============

    This GLSA and any updates to it are available for viewing at
    the Gentoo Security Website:

    https://security.gentoo.org/glsa/202210-32

    Concerns?
    =========

    Security is a primary focus of Gentoo Linux and ensuring the
    confidentiality and security of our users' machines is of utmost
    importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.

    License
    =======

    Copyright 2022 Gentoo Foundation, Inc; referenced text
    belongs to its owner(s).

    The contents of this document are licensed under the
    Creative Commons - Attribution / Share Alike license.

    https://creativecommons.org/licenses/by-sa/2.5
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