Most severe vulnerabilities for "libslirp project libslirp" 4.0.0

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redhat/qemu-kvmBuffer Overflow

Risk 82

Severity

8.8

Buffer Overflow

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

A heap buffer overflow issue was found in the SLiRP networking implementation of the QEMU emulator. It occurs in ipreass() routine while reassembling incoming packets, if the first fragment is bigger than the m->mdat[] buffer.

A user/process could use this flaw to crash the Qemu process on the host resulting in DoS or potentially execute arbitrary code with privileges of the QEMU process.

Upstream patch: --------------- -> https://gitlab.freedesktop.org/slirp/libslirp/commit/126c04acbabd7ad32c2b018fe10dfac2a3bc1210

Reference: ---------- -> https://www.openwall.com/lists/oss-security/2019/08/01/2

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Source: Red Hat

Remedy

There is no external mitigation to prevent this out-of-bounds heap memory access.

First published (updated )

CVE-2019-14378

redhat/qemu-kvmUse After Free

Risk 45

Severity

7.5

Use After Free

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

A use-after-free issue was found in the SLiRP networking implementation of the QEMU emulator. It occurs in ipreass() routine while reassembling incoming packets, if the first fragment is bigger than the m->mdat[] buffer.

A user/process could use this flaw to crash the Qemu process on the host resulting in DoS.

Upstream patch: --------------- -> https://gitlab.freedesktop.org/slirp/libslirp/commit/c59279437eda91841b9d26079c70b8a540d41204

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Source: Red Hat

First published (updated )

CVE-2019-15890

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