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Gentoo Linux Security Advisory GLSA 202210-32 |
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https://security.gentoo.org/ |
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|
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Severity: Normal |
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Title: hiredis, hiredis-py: Multiple Vulnerabilities |
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Date: October 31, 2022 |
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Bugs: #873079, #816318 |
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ID: 202210-32 |
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|
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Synopsis |
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======== |
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|
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An integer overflow has been found in hiredis which could result in |
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arbitrary code execution. |
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|
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Background |
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========== |
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|
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hiredis is a minimalistic C client library for the Redis database. |
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|
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hiredis-py is a Python extension that wraps hiredis. |
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|
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Affected packages |
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================= |
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|
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------------------------------------------------------------------- |
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Package / Vulnerable / Unaffected |
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------------------------------------------------------------------- |
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1 dev-libs/hiredis < 1.0.1 >= 1.0.1 |
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2 dev-python/hiredis < 2.0.0 >= 2.0.0 |
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|
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Description |
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=========== |
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|
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Hiredis is vulnerable to integer overflow if provided maliciously |
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crafted or corrupted `RESP` `mult-bulk` protocol data. When parsing |
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`multi-bulk` (array-like) replies, hiredis fails to check if `count * |
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sizeof(redisReply*)` can be represented in `SIZE_MAX`. If it can not, |
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and the `calloc()` call doesn't itself make this check, it would result |
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in a short allocation and subsequent buffer overflow. |
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|
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Impact |
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====== |
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|
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Malicious Redis commands could result in remote code execution. |
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Workaround |
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========== |
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There is no known workaround at this time. |
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|
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Resolution |
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========== |
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All hiredis users should upgrade to the latest version: |
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# emerge --sync |
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# emerge --ask --oneshot --verbose ">=dev-libs/hiredis-1.0.1" |
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|
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All hiredis-py users should upgrade to the latest version: |
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# emerge --sync |
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# emerge --ask --oneshot --verbose ">=dev-python/hiredis-2.0.0" |
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|
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References |
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========== |
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|
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[ 1 ] CVE-2021-32765 |
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https://nvd.nist.gov/vuln/detail/CVE-2021-32765 |
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|
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Availability |
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============ |
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|
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This GLSA and any updates to it are available for viewing at |
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the Gentoo Security Website: |
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|
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https://security.gentoo.org/glsa/202210-32 |
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|
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Concerns? |
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========= |
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|
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Security is a primary focus of Gentoo Linux and ensuring the |
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confidentiality and security of our users' machines is of utmost |
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importance to us. Any security concerns should be addressed to |
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security@g.o or alternatively, you may file a bug at |
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https://bugs.gentoo.org. |
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|
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License |
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======= |
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Copyright 2022 Gentoo Foundation, Inc; referenced text |
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belongs to its owner(s). |
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|
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The contents of this document are licensed under the |
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Creative Commons - Attribution / Share Alike license. |
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|
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https://creativecommons.org/licenses/by-sa/2.5 |