Out-of-bounds Read Affecting kernel-livepatch-4_12_14-25_13-default package, versions <3-2.3


Severity

Recommended
0.0
high
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.06% (29th percentile)

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  • Snyk IDSNYK-SLES150-KERNELLIVEPATCH412142513DEFAULT-2760909
  • published14 Apr 2022
  • disclosed28 Sept 2018

Introduced: 28 Sep 2018

CVE-2018-15471  (opens in a new tab)
CWE-125  (opens in a new tab)

How to fix?

Upgrade SLES:15.0 kernel-livepatch-4_12_14-25_13-default to version 3-2.3 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-livepatch-4_12_14-25_13-default package and not the kernel-livepatch-4_12_14-25_13-default package as distributed by SLES. See How to fix? for SLES:15.0 relevant fixed versions and status.

An issue was discovered in xenvif_set_hash_mapping in drivers/net/xen-netback/hash.c in the Linux kernel through 4.18.1, as used in Xen through 4.11.x and other products. The Linux netback driver allows frontends to control mapping of requests to request queues. When processing a request to set or change this mapping, some input validation (e.g., for an integer overflow) was missing or flawed, leading to OOB access in hash handling. A malicious or buggy frontend may cause the (usually privileged) backend to make out of bounds memory accesses, potentially resulting in one or more of privilege escalation, Denial of Service (DoS), or information leaks.

CVSS Scores

version 3.1