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CVE-2023-52598— s390/ptrace: handle setting of fpc register correctly

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞。攻击者利用该漏洞导致fpc寄存器损坏。

AI Predicted 5.5 Difficulty: Moderate EPSS 0.24% · P14

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux 9977e886cbbc758b4b601a160b5825ba573b5ca8< 6ccf904aac0292e1f6b1a1be6c407c414f7cf713 affected
9977e886cbbc758b4b601a160b5825ba573b5ca8< 6d0822f2cc9b153bf2df49a84599195a2e0d21a8 affected
9977e886cbbc758b4b601a160b5825ba573b5ca8< 856caf2730ea18cb39e95833719c02a02447dc0a affected
9977e886cbbc758b4b601a160b5825ba573b5ca8< 28a1f492cb527f64593457a0a0f0d809b3f36c25 affected
9977e886cbbc758b4b601a160b5825ba573b5ca8< 7a4d6481fbdd661f9e40e95febb95e3dee82bad3 affected
9977e886cbbc758b4b601a160b5825ba573b5ca8< 02c6bbfb08bad78dd014e24c7b893723c15ec7a1 affected
9977e886cbbc758b4b601a160b5825ba573b5ca8< bdce67df7f12fb0409fbc604ce7c4254703f56d4 affected
9977e886cbbc758b4b601a160b5825ba573b5ca8< 8b13601d19c541158a6e18b278c00ba69ae37829 affected
… +10 more rows
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I. Basic Information for CVE-2023-52598

Vulnerability Information
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Vulnerability Title
s390/ptrace: handle setting of fpc register correctly
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: s390/ptrace: handle setting of fpc register correctly If the content of the floating point control (fpc) register of a traced process is modified with the ptrace interface the new value is tested for validity by temporarily loading it into the fpc register. This may lead to corruption of the fpc register of the tracing process: if an interrupt happens while the value is temporarily loaded into the fpc register, and within interrupt context floating point or vector registers are used, the current fp/vx registers are saved with save_fpu_regs() assuming they belong to user space and will be loaded into fp/vx registers when returning to user space. test_fp_ctl() restores the original user space fpc register value, however it will be discarded, when returning to user space. In result the tracer will incorrectly continue to run with the value that was supposed to be used for the traced process. Fix this by saving fpu register contents with save_fpu_regs() before using test_fp_ctl().
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞。攻击者利用该漏洞导致fpc寄存器损坏。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux 9977e886cbbc758b4b601a160b5825ba573b5ca8 ~ 6ccf904aac0292e1f6b1a1be6c407c414f7cf713 -
Linux Linux 4.3 -

II. Public POCs for CVE-2023-52598

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III. Intelligence Information for CVE-2023-52598

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Patches & Fixes for CVE-2023-52598 (1)

Mailing List Discussions for CVE-2023-52598 (1)

Other References for CVE-2023-52598 (6)

Same Patch Batch · Linux · 2024-03-06 · 27 CVEs total

CVE-2023-52591 7.8 HIGH reiserfs: Avoid touching renamed directory if parent does not change
CVE-2023-52601 7.8 HIGH jfs: fix array-index-out-of-bounds in dbAdjTree
CVE-2023-52600 7.8 HIGH jfs: fix uaf in jfs_evict_inode
CVE-2023-52599 7.8 HIGH jfs: fix array-index-out-of-bounds in diNewExt
CVE-2023-52602 7.8 HIGH jfs: fix slab-out-of-bounds Read in dtSearch
CVE-2023-52603 7.8 HIGH UBSAN: array-index-out-of-bounds in dtSplitRoot
CVE-2023-52604 7.8 HIGH FS:JFS:UBSAN:array-index-out-of-bounds in dbAdjTree
CVE-2023-52606 7.8 HIGH powerpc/lib: Validate size for vector operations
CVE-2023-52590 7.8 HIGH ocfs2: Avoid touching renamed directory if parent does not change
CVE-2024-26623 7.8 HIGH pds_core: Prevent race issues involving the adminq
CVE-2024-26625 7.8 HIGH llc: call sock_orphan() at release time
CVE-2023-52586 7.8 HIGH drm/msm/dpu: Add mutex lock in control vblank irq
CVE-2024-26626 7.5 HIGH ipmr: fix kernel panic when forwarding mcast packets
CVE-2023-52588 7.3 HIGH f2fs: fix to tag gcing flag on page during block migration
CVE-2023-52597 KVM: s390: fix setting of fpc register
CVE-2023-52607 powerpc/mm: Fix null-pointer dereference in pgtable_cache_add
CVE-2024-26627 scsi: core: Move scsi_host_busy() out of host lock for waking up EH handler
CVE-2023-52583 ceph: fix deadlock or deadcode of misusing dget()
CVE-2023-52596 sysctl: Fix out of bounds access for empty sysctl registers
CVE-2023-52595 wifi: rt2x00: restart beacon queue when hardware reset

Showing top 20 of 27 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2023-52598

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