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Bug 803107 (CVE-2021-36980, CVE-2021-3905) - <net-misc/openvswitch-2.17.2: multiple vulnerabilities
Summary: <net-misc/openvswitch-2.17.2: multiple vulnerabilities
Alias: CVE-2021-36980, CVE-2021-3905
Product: Gentoo Security
Classification: Unclassified
Component: Vulnerabilities (show other bugs)
Hardware: All Linux
: Normal minor (vote)
Assignee: Gentoo Security
Whiteboard: B3 [glsa+]
Depends on: 864813
  Show dependency tree
Reported: 2021-07-20 22:14 UTC by John Helmert III
Modified: 2023-11-26 10:09 UTC (History)
2 users (show)

See Also:
Package list:
Runtime testing required: ---


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Description John Helmert III archtester Gentoo Infrastructure gentoo-dev Security 2021-07-20 22:14:17 UTC

Open vSwitch (aka openvswitch) 2.11.0 through 2.15.0 has a use-after-free in decode_NXAST_RAW_ENCAP (called from ofpact_decode and ofpacts_decode) during the decoding of a RAW_ENCAP action.

2.14 patch:
2.15 patch:

The vulnerability is fixed in the 2.15 branch with 2.15.1 and there seems to
be no release with 2.14's fix.
Comment 1 NATTkA bot gentoo-dev 2021-07-29 17:20:53 UTC Comment hidden (obsolete)
Comment 2 NATTkA bot gentoo-dev 2021-07-29 17:29:00 UTC Comment hidden (obsolete)
Comment 3 NATTkA bot gentoo-dev 2021-07-29 17:36:57 UTC Comment hidden (obsolete)
Comment 4 NATTkA bot gentoo-dev 2021-07-29 17:44:59 UTC Comment hidden (obsolete)
Comment 5 NATTkA bot gentoo-dev 2021-07-29 17:53:03 UTC Comment hidden (obsolete)
Comment 6 NATTkA bot gentoo-dev 2021-07-29 17:56:58 UTC Comment hidden (obsolete)
Comment 7 NATTkA bot gentoo-dev 2021-07-29 18:00:58 UTC Comment hidden (obsolete)
Comment 8 NATTkA bot gentoo-dev 2021-07-29 18:09:16 UTC
Package list is empty or all packages have requested keywords.
Comment 9 John Helmert III archtester Gentoo Infrastructure gentoo-dev Security 2021-08-07 06:16:03 UTC
Comment 10 John Helmert III archtester Gentoo Infrastructure gentoo-dev Security 2022-08-10 15:54:37 UTC
Please stabilize when ready.
Comment 11 John Helmert III archtester Gentoo Infrastructure gentoo-dev Security 2022-08-23 20:01:09 UTC

A memory leak was found in Open vSwitch (OVS) during userspace IP fragmentation processing. An attacker could use this flaw to potentially exhaust available memory by keeping sending packet fragments.

RedHat bug:

Commit is in 2.17.0 and beyond.
Comment 12 Larry the Git Cow gentoo-dev 2023-11-26 10:07:46 UTC
The bug has been referenced in the following commit(s):

commit 6109db58da8356109819f2e31a15acb75bbd5b61
Author:     GLSAMaker <>
AuthorDate: 2023-11-26 10:06:58 +0000
Commit:     Hans de Graaff <>
CommitDate: 2023-11-26 10:07:30 +0000

    [ GLSA 202311-16 ] Open vSwitch: Multiple Vulnerabilities
    Signed-off-by: GLSAMaker <>
    Signed-off-by: Hans de Graaff <>

 glsa-202311-16.xml | 51 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 51 insertions(+)