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DebianDEBIAN:DLA-2944-1:4E747

HistoryMar 10, 2022 - 5:44 p.m.

[SECURITY] [DLA 2944-1] nbd security update

2022-03-1017:44:53

lists.debian.org

debian

lts

nbd

security update

integer overflow

cve-2022-26495

buffer overflow

CVSS2

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

9.7

Confidence

High

EPSS

0.004

Percentile

73.4%

JSON

Debian LTS Advisory DLA-2944-1 [email protected]
https://www.debian.org/lts/security/ Chris Lamb
March 10, 2022 https://wiki.debian.org/LTS

Package : nbd
Version : 1:3.15.2-3+deb9u1
CVE ID : CVE-2022-26495
Debian Bugs : #1003863 #1006915

An integer overflow (with a resultant heap-based buffer overflow)
was discovered in the nbd Network Block Device server. A value of
0xffffffff in the name length field could have caused a zero-sized
buffer to be allocated for the name, resulting in a write to a
dangling pointer.

For Debian 9 "Stretch", this problem has been fixed in version
1:3.15.2-3+deb9u1.

We recommend that you upgrade your nbd packages.

For the detailed security status of nbd please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/nbd

Thanks to Wouter Verhelst for help in preparing this update.

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS

OSVersionArchitecturePackageVersionFilename
Debian11armhfnbd-client-udeb< 1:3.21-1+deb11u1nbd-client-udeb_1:3.21-1+deb11u1_armhf.deb
Debian9armelnbd-server< 1:3.15.2-3+deb9u1nbd-server_1:3.15.2-3+deb9u1_armel.deb
Debian10mips64elnbd-client-dbgsym< 1:3.19-3+deb10u1nbd-client-dbgsym_1:3.19-3+deb10u1_mips64el.deb
Debian9armelnbd-client-udeb< 1:3.15.2-3+deb9u1nbd-client-udeb_1:3.15.2-3+deb9u1_armel.deb
Debian11mips64elnbd-client-dbgsym< 1:3.21-1+deb11u1nbd-client-dbgsym_1:3.21-1+deb11u1_mips64el.deb
Debian10mipselnbd-client-dbgsym< 1:3.19-3+deb10u1nbd-client-dbgsym_1:3.19-3+deb10u1_mipsel.deb
Debian11armhfnbd-server-dbgsym< 1:3.21-1+deb11u1nbd-server-dbgsym_1:3.21-1+deb11u1_armhf.deb
Debian11amd64nbd-client-udeb< 1:3.21-1+deb11u1nbd-client-udeb_1:3.21-1+deb11u1_amd64.deb
Debian9armhfnbd-client< 1:3.15.2-3+deb9u1nbd-client_1:3.15.2-3+deb9u1_armhf.deb
Debian10amd64nbd-client< 1:3.19-3+deb10u1nbd-client_1:3.19-3+deb10u1_amd64.deb

OS	Version	Architecture	Package	Version	Filename
Debian	11	armhf	nbd-client-udeb	< 1:3.21-1+deb11u1	nbd-client-udeb_1:3.21-1+deb11u1_armhf.deb
Debian	9	armel	nbd-server	< 1:3.15.2-3+deb9u1	nbd-server_1:3.15.2-3+deb9u1_armel.deb
Debian	10	mips64el	nbd-client-dbgsym	< 1:3.19-3+deb10u1	nbd-client-dbgsym_1:3.19-3+deb10u1_mips64el.deb
Debian	9	armel	nbd-client-udeb	< 1:3.15.2-3+deb9u1	nbd-client-udeb_1:3.15.2-3+deb9u1_armel.deb
Debian	11	mips64el	nbd-client-dbgsym	< 1:3.21-1+deb11u1	nbd-client-dbgsym_1:3.21-1+deb11u1_mips64el.deb
Debian	10	mipsel	nbd-client-dbgsym	< 1:3.19-3+deb10u1	nbd-client-dbgsym_1:3.19-3+deb10u1_mipsel.deb
Debian	11	armhf	nbd-server-dbgsym	< 1:3.21-1+deb11u1	nbd-server-dbgsym_1:3.21-1+deb11u1_armhf.deb
Debian	11	amd64	nbd-client-udeb	< 1:3.21-1+deb11u1	nbd-client-udeb_1:3.21-1+deb11u1_amd64.deb
Debian	9	armhf	nbd-client	< 1:3.15.2-3+deb9u1	nbd-client_1:3.15.2-3+deb9u1_armhf.deb
Debian	10	amd64	nbd-client	< 1:3.19-3+deb10u1	nbd-client_1:3.19-3+deb10u1_amd64.deb