CVE-2023-53599 — NULL Pointer Dereference in Linux

CWE-476 — NULL Pointer Dereference5 documents5 sources
Severity
5.5MEDIUMNVD
EPSS
0.0%
top 95.28%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
LinuxLinux KernelDebian Linux
Timeline
PublishedOct 4

Description

In the Linux kernel, the following vulnerability has been resolved: crypto: af_alg - Fix missing initialisation affecting gcm-aes-s390 Fix af_alg_alloc_areq() to initialise areq->first_rsgl.sgl.sgt.sgl to point to the scatterlist array in areq->first_rsgl.sgl.sgl. Without this, the gcm-aes-s390 driver will oops when it tries to do gcm_walk_start() on req->dst because req->dst is set to the value of areq->first_rsgl.sgl.sgl by _aead_recvmsg() calling aead_request_set_crypt(). The problem come…

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitability: 1.8 | Impact: 3.6

Affected Packages4 packages

▶NVDlinux/linux_kernel6.5 — 6.5.3
▶Debianlinux/linux_kernel< 6.5.3-1+1
▶CVEListV5linux/linuxc1abe6f570aff4b6d396dc551e60570d2f50bd79 — 2c9d205040d7c0eaccc473917f9b0bb0a923e440+2
▶debiandebian/linux< linux 6.5.3-1 (forky)

Patches

Patch: git.kernel.org ↗Patch: git.kernel.org ↗

🔴Vulnerability Details

2
OSV
CVE-2023-53599: In the Linux kernel, the following vulnerability has been resolved: crypto: af_alg - Fix missing initialisation affecting gcm-aes-s390 Fix af_alg_allo↗2025-10-04
▶
GHSA
GHSA-r4c5-q57v-m6cj: In the Linux kernel, the following vulnerability has been resolved: crypto: af_alg - Fix missing initialisation affecting gcm-aes-s390 Fix af_alg_al↗2025-10-04
▶

📋Vendor Advisories

2
Red Hat
kernel: crypto: af_alg - Fix missing initialisation affecting gcm-aes-s390↗2025-10-04
▶
Debian
CVE-2023-53599: linux - In the Linux kernel, the following vulnerability has been resolved: crypto: af_...↗2023
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