CVE-2020-28895 — Integer Overflow or Wraparound in Vxworks

CWE-190 — Integer Overflow or WraparoundCWE-787 — Out-of-bounds WriteCWE-120 — Classic Buffer Overflow3 documents3 sources
Severity
7.3HIGHNVD
EPSS
0.5%
top 35.85%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Windriver VxworksOracle Communications Eagle
Timeline
PublishedFeb 3
Latest updateMay 24

Description

In Wind River VxWorks, memory allocator has a possible overflow in calculating the memory block's size to be allocated by calloc(). As a result, the actual memory allocated is smaller than the buffer size specified by the arguments, leading to memory corruption.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:LExploitability: 3.9 | Impact: 3.4

Affected Packages2 packages

▶NVDwindriver/vxworks6.9 — 6.9.4.12+1
▶NVDoracle/communications_eagle46.8.0 — 48.6.2+2

Patches

Patch: www.oracle.com ↗Patch: www.oracle.com ↗

🔴Vulnerability Details

2
GHSA
GHSA-5wmw-m5w7-7m5m: In Wind River VxWorks, memory allocator has a possible overflow in calculating the memory block's size to be allocated by calloc()↗2022-05-24
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CVEList
integer overflow in calloc↗2021-02-03
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CVE-2020-28895 — Integer Overflow or Wraparound | cvebase