Integer Overflow or Wraparound Affecting qemu package, versions <2.0.0+dfsg-1


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.11% (30th percentile)

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  • Snyk IDSNYK-DEBIAN9-QEMU-427837
  • published10 Aug 2017
  • disclosed10 Aug 2017

Introduced: 10 Aug 2017

CVE-2014-0143  (opens in a new tab)
CWE-190  (opens in a new tab)

How to fix?

Upgrade Debian:9 qemu to version 2.0.0+dfsg-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream qemu package and not the qemu package as distributed by Debian. See How to fix? for Debian:9 relevant fixed versions and status.

Multiple integer overflows in the block drivers in QEMU, possibly before 2.0.0, allow local users to cause a denial of service (crash) via a crafted catalog size in (1) the parallels_open function in block/parallels.c or (2) bochs_open function in bochs.c, a large L1 table in the (3) qcow2_snapshot_load_tmp in qcow2-snapshot.c or (4) qcow2_grow_l1_table function in qcow2-cluster.c, (5) a large request in the bdrv_check_byte_request function in block.c and other block drivers, (6) crafted cluster indexes in the get_refcount function in qcow2-refcount.c, or (7) a large number of blocks in the cloop_open function in cloop.c, which trigger buffer overflows, memory corruption, large memory allocations and out-of-bounds read and writes.

References

CVSS Base Scores

version 3.1