CVE-2021-32765
published 2021-10-04CVE-2021-32765: Hiredis is a minimalistic C client library for the Redis database. In affected versions Hiredis is vulnurable to integer overflow if provided maliciously…
PriorityP353high8.8CVSS 3.1
AVNACLPRLUINSUCHIHAH
EPSS
2.20%
80.7th percentile
Hiredis is a minimalistic C client library for the Redis database. In affected versions Hiredis is vulnurable 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. Users of hiredis who are unable to update may set the [maxelements](https://github.com/redis/hiredis#reader-max-array-elements) context option to a value small enough that no overflow is possible.
Affected
6 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | debian_linux | — | — |
| debian | hiredis | < hiredis 0.14.1-2 (bookworm) | hiredis 0.14.1-2 (bookworm) |
| redis | hiredis | < 1.0.1 | 1.0.1 |
| redis | hiredis | >= 0 < 0.14.1-2 | 0.14.1-2 |
| redis | hiredis | >= 0 < 0.14.1-2 | 0.14.1-2 |
| redis | hiredis | >= 0 < 0.14.1-2 | 0.14.1-2 |
CVSS provenance
nvdv3.18.8HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
nvdv2.06.5MEDIUMAV:N/AC:L/Au:S/C:P/I:P/A:P
osv8.8HIGH
vendor_debian8.8LOW
vendor_redhat8.8HIGH
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Red Hat
hiredis: an integer overflow may occur if provided maliciously crafted or corrupted RESP mult-bulk protocol data
vendor_redhat·2021-10-04·CVSS 8.8
CVE-2021-32765 [HIGH] CWE-190 hiredis: an integer overflow may occur if provided maliciously crafted or corrupted RESP mult-bulk protocol data
hiredis: an integer overflow may occur if provided maliciously crafted or corrupted RESP mult-bulk protocol data
Hiredis is a minimalistic C client library for the Redis database. In affected versions Hiredis is vulnurable 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. Users of hiredis who are unable to update may set the [maxelements](https://github.com/redis/hiredis#reader-max-array-elements) context option to a value small enough that no overflow is possible.
Debian
CVE-2021-32765: hiredis - Hiredis is a minimalistic C client library for the Redis database. In affected v...
vendor_debian·2021·CVSS 8.8
CVE-2021-32765 [HIGH] CVE-2021-32765: hiredis - Hiredis is a minimalistic C client library for the Redis database. In affected v...
Hiredis is a minimalistic C client library for the Redis database. In affected versions Hiredis is vulnurable 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. Users of hiredis who are unable to update may set the [maxelements](https://github.com/redis/hiredis#reader-max-array-elements) context option to a value small enough that no overflow is possible.
Scope: local
bookworm: resolved (fixed in 0.14.1-2)
bullseye: open
forky: resolved (fixed in 0.14.1-2)
sid: resolve
OSV
CVE-2021-32765: Hiredis is a minimalistic C client library for the Redis database
osv·2021-10-04·CVSS 8.8
CVE-2021-32765 [HIGH] CVE-2021-32765: Hiredis is a minimalistic C client library for the Redis database
Hiredis is a minimalistic C client library for the Redis database. In affected versions Hiredis is vulnurable 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. Users of hiredis who are unable to update may set the [maxelements](https://github.com/redis/hiredis#reader-max-array-elements) context option to a value small enough that no overflow is possible.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
https://github.com/redis/hiredis/commit/76a7b10005c70babee357a7d0f2becf28ec7ed1ehttps://github.com/redis/hiredis/security/advisories/GHSA-hfm9-39pp-55p2https://lists.debian.org/debian-lts-announce/2021/10/msg00007.htmlhttps://security.gentoo.org/glsa/202210-32https://security.netapp.com/advisory/ntap-20211104-0003/https://wiki.sei.cmu.edu/confluence/display/c/MEM07-C.+Ensure+that+the+arguments+to+calloc%28%29%2C+when+multiplied%2C+do+not+wraphttps://github.com/redis/hiredis/commit/76a7b10005c70babee357a7d0f2becf28ec7ed1ehttps://github.com/redis/hiredis/security/advisories/GHSA-hfm9-39pp-55p2https://lists.debian.org/debian-lts-announce/2021/10/msg00007.htmlhttps://security.gentoo.org/glsa/202210-32https://security.netapp.com/advisory/ntap-20211104-0003/https://wiki.sei.cmu.edu/confluence/display/c/MEM07-C.+Ensure+that+the+arguments+to+calloc%28%29%2C+when+multiplied%2C+do+not+wrap
2021-10-04
Published