CVE-2021-32628
published 2021-10-04CVE-2021-32628: Redis is an open source, in-memory database that persists on disk. An integer overflow bug in the ziplist data structure used by all versions of Redis can be…
PriorityP359high7.5CVSS 3.1
AVNACHPRLUINSUCHIHAH
EPSS
12.62%
95.8th percentile
Redis is an open source, in-memory database that persists on disk. An integer overflow bug in the ziplist data structure used by all versions of Redis can be exploited to corrupt the heap and potentially result with remote code execution. The vulnerability involves modifying the default ziplist configuration parameters (hash-max-ziplist-entries, hash-max-ziplist-value, zset-max-ziplist-entries or zset-max-ziplist-value) to a very large value, and then constructing specially crafted commands to create very large ziplists. The problem is fixed in Redis versions 6.2.6, 6.0.16, 5.0.14. An additional workaround to mitigate the problem without patching the redis-server executable is to prevent users from modifying the above configuration parameters. This can be done using ACL to restrict unprivileged users from using the CONFIG SET command.
Affected
25 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | debian_linux | — | — |
| debian | debian_linux | — | — |
| debian | redis | < redis 5:6.0.16-1 (bookworm) | redis 5:6.0.16-1 (bookworm) |
| fedoraproject | fedora | — | — |
| fedoraproject | fedora | — | — |
| fedoraproject | fedora | — | — |
| msrc | cbl2_redis_6.2.6-1_on_cbl_mariner_2.0 | — | — |
| msrc | cm1_redis_5.0.14-1_on_cbl_mariner_1.0 | — | — |
| oracle | communications_operations_monitor | — | — |
| oracle | communications_operations_monitor | — | — |
| oracle | communications_operations_monitor | — | — |
| redis | redis | < 5.0.14 | 5.0.14 |
| redis | redis | — | — |
| redis | redis | — | — |
| redis | redis | >= 0 < 5:6.0.16-1+deb11u1 | 5:6.0.16-1+deb11u1 |
| redis | redis | >= 0 < 5:6.0.16-1 | 5:6.0.16-1 |
| redis | redis | >= 0 < 5:6.0.16-1 | 5:6.0.16-1 |
| redis | redis | >= 0 < 5:6.0.16-1 | 5:6.0.16-1 |
| redis | redis | >= 0 < 2:2.8.4-2ubuntu0.2+esm2 | 2:2.8.4-2ubuntu0.2+esm2 |
| redis | redis | >= 0 < 2:3.0.6-1ubuntu0.4+esm1 | 2:3.0.6-1ubuntu0.4+esm1 |
| redis | redis | >= 0 < 5:4.0.9-1ubuntu0.2+esm3 | 5:4.0.9-1ubuntu0.2+esm3 |
| redis | redis | >= 0 < 5:5.0.7-2ubuntu0.1+esm1 | 5:5.0.7-2ubuntu0.1+esm1 |
| redis | redis | >= 5.0.0 < 5.0.14 | 5.0.14 |
| redis | redis | >= 6.0.0 < 6.0.16 | 6.0.16 |
| redis | redis | >= 6.2.0 < 6.2.6 | 6.2.6 |
CVSS provenance
nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
nvdv2.06.0MEDIUMAV:N/AC:M/Au:S/C:P/I:P/A:P
osv8.8HIGH
vendor_debian7.5HIGH
vendor_msrc7.5HIGH
vendor_redhat7.5HIGH
vendor_ubuntu5.4MEDIUM
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OSV
redis vulnerabilities
osv·2022-08-03·CVSS 8.8
CVE-2021-32626 [HIGH] redis vulnerabilities
redis vulnerabilities
It was discovered that Redis incorrectly handled certain specially crafted
Lua scripts. A remote attacker could possibly use this issue to cause a
denial of service or execute arbitrary code. (CVE-2021-32626)
It was discovered that Redis incorrectly handled some malformed requests
when using Redis Lua Debugger. A remote attacker could possibly use this
issue to cause a denial of service or other unspecified impact. This issue
only affected Ubuntu 18.04 ESM and Ubuntu 20.04 ESM. (CVE-2021-32672)
It was discovered that Redis incorrectly handled certain Redis Standard
Protocol (RESP) requests. A remote attacker could possibly use this issue
to cause a denial of service. (CVE-2021-32675)
It was discovered that Redis incorrectly handled some configuration
parameters wi
OSV
CVE-2021-32628: Redis is an open source, in-memory database that persists on disk
osv·2021-10-04·CVSS 7.5
CVE-2021-32628 [HIGH] CVE-2021-32628: Redis is an open source, in-memory database that persists on disk
Redis is an open source, in-memory database that persists on disk. An integer overflow bug in the ziplist data structure used by all versions of Redis can be exploited to corrupt the heap and potentially result with remote code execution. The vulnerability involves modifying the default ziplist configuration parameters (hash-max-ziplist-entries, hash-max-ziplist-value, zset-max-ziplist-entries or zset-max-ziplist-value) to a very large value, and then constructing specially crafted commands to create very large ziplists. The problem is fixed in Redis versions 6.2.6, 6.0.16, 5.0.14. An additional workaround to mitigate the problem without patching the redis-server executable is to prevent users from modifying the above configuration parameters. This can be done using ACL to restrict unprivi
Ubuntu
Redis vulnerabilities
vendor_ubuntu·2022-08-03·CVSS 5.4
CVE-2021-41099 [MEDIUM] Redis vulnerabilities
Title: Redis vulnerabilities
Summary: Several security issues were fixed in Redis.
It was discovered that Redis incorrectly handled certain specially crafted
Lua scripts. A remote attacker could possibly use this issue to cause a
denial of service or execute arbitrary code. (CVE-2021-32626)
It was discovered that Redis incorrectly handled some malformed requests
when using Redis Lua Debugger. A remote attacker could possibly use this
issue to cause a denial of service or other unspecified impact. This issue
only affected Ubuntu 18.04 ESM and Ubuntu 20.04 ESM. (CVE-2021-32672)
It was discovered that Redis incorrectly handled certain Redis Standard
Protocol (RESP) requests. A remote attacker could possibly use this issue
to cause a denial of service. (CVE-2021-32675)
It was discovered t
Microsoft
Vulnerability in handling large ziplists
vendor_msrc·2021-10-12·CVSS 7.5
CVE-2021-32628 [HIGH] CWE-190 Vulnerability in handling large ziplists
Vulnerability in handling large ziplists
FAQ: Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability?
One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the most recent and most secure versions of the open source libraries with which the distro is composed. Microsoft is committed to transparency in this work which is why we began publishing CSAF/VEX in October 2025. See this blog post for more information. If impact to additional products is identified, we will update the CVE to reflect this.
Mariner: Mariner
GitHub_M: GitHub_M
Customer Action Required: Yes
Remediation: CBL-Mariner Releases
Reference: https://learn.microsof
Red Hat
redis: Integer overflow bug in the ziplist data structure
vendor_redhat·2021-10-04·CVSS 7.5
CVE-2021-32628 [HIGH] CWE-787 redis: Integer overflow bug in the ziplist data structure
redis: Integer overflow bug in the ziplist data structure
Redis is an open source, in-memory database that persists on disk. An integer overflow bug in the ziplist data structure used by all versions of Redis can be exploited to corrupt the heap and potentially result with remote code execution. The vulnerability involves modifying the default ziplist configuration parameters (hash-max-ziplist-entries, hash-max-ziplist-value, zset-max-ziplist-entries or zset-max-ziplist-value) to a very large value, and then constructing specially crafted commands to create very large ziplists. The problem is fixed in Redis versions 6.2.6, 6.0.16, 5.0.14. An additional workaround to mitigate the problem without patching the redis-server executable is to prevent users from modifying the above configuration
Debian
CVE-2021-32628: redis - Redis is an open source, in-memory database that persists on disk. An integer ov...
vendor_debian·2021·CVSS 7.5
CVE-2021-32628 [HIGH] CVE-2021-32628: redis - Redis is an open source, in-memory database that persists on disk. An integer ov...
Redis is an open source, in-memory database that persists on disk. An integer overflow bug in the ziplist data structure used by all versions of Redis can be exploited to corrupt the heap and potentially result with remote code execution. The vulnerability involves modifying the default ziplist configuration parameters (hash-max-ziplist-entries, hash-max-ziplist-value, zset-max-ziplist-entries or zset-max-ziplist-value) to a very large value, and then constructing specially crafted commands to create very large ziplists. The problem is fixed in Redis versions 6.2.6, 6.0.16, 5.0.14. An additional workaround to mitigate the problem without patching the redis-server executable is to prevent users from modifying the above configuration parameters. This can be done using ACL to restrict unprivi
No detection rules found.
No public exploits indexed.
https://github.com/redis/redis/commit/f6a40570fa63d5afdd596c78083d754081d80ae3https://github.com/redis/redis/security/advisories/GHSA-vw22-qm3h-49prhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HTYQ5ZF37HNGTZWVNJD3VXP7I6MEEF42/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VL5KXFN3ATM7IIM7Q4O4PWTSRGZ5744Z/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WR5WKJWXD4D6S3DJCZ56V74ESLTDQRAB/https://security.gentoo.org/glsa/202209-17https://security.netapp.com/advisory/ntap-20211104-0003/https://www.debian.org/security/2021/dsa-5001https://www.oracle.com/security-alerts/cpuapr2022.htmlhttps://github.com/redis/redis/commit/f6a40570fa63d5afdd596c78083d754081d80ae3https://github.com/redis/redis/security/advisories/GHSA-vw22-qm3h-49prhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HTYQ5ZF37HNGTZWVNJD3VXP7I6MEEF42/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VL5KXFN3ATM7IIM7Q4O4PWTSRGZ5744Z/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WR5WKJWXD4D6S3DJCZ56V74ESLTDQRAB/https://security.gentoo.org/glsa/202209-17https://security.netapp.com/advisory/ntap-20211104-0003/https://www.debian.org/security/2021/dsa-5001https://www.oracle.com/security-alerts/cpuapr2022.html
2021-10-04
Published