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Bug 806070 (CVE-2021-37600)

Summary: <sys-apps/util-linux-2.37.1-r1: buffer overflow (CVE-2021-37600)
Product: Gentoo Security Reporter: John Helmert III <ajak>
Component: VulnerabilitiesAssignee: Gentoo Security <security>
Status: IN_PROGRESS ---    
Severity: normal CC: base-system
Priority: Normal    
Version: unspecified   
Hardware: All   
OS: Linux   
Whiteboard: A3 [glsa?]
Package list:
Runtime testing required: ---
Bug Depends on: 809491    
Bug Blocks:    

Description John Helmert III archtester Gentoo Infrastructure gentoo-dev Security 2021-08-01 18:52:18 UTC

An integer overflow in util-linux through 2.37.1 can potentially cause a buffer overflow if an attacker were able to use system resources in a way that leads to a large number in the /proc/sysvipc/sem file.

Unreleased patch:
Comment 1 Sam James archtester Gentoo Infrastructure gentoo-dev Security 2021-08-01 18:57:15 UTC
Upstream don't consider this an issue:
Comment 2 Larry the Git Cow gentoo-dev 2021-08-11 12:30:52 UTC
The bug has been referenced in the following commit(s):

commit da60551412d12ea1b7b0fe27a7603fb7873d63c2
Author:     Lars Wendler <>
AuthorDate: 2021-08-11 12:25:48 +0000
Commit:     Lars Wendler <>
CommitDate: 2021-08-11 12:30:42 +0000

    sys-apps/util-linux: Revbump to add various upstream fixes
    * Erase names in agetty by pressing CTRL-C (#804972)
    * Fixed user mount of davfs2 filesystems (#805218)
    * Fixed lscpu segfault on riscv plattform with upstream patch (#802606)
    + Fixed potential buffer overflow in ipcutils (#806070) (CVE-2021-37600)
    Signed-off-by: Lars Wendler <>

 .../util-linux-2.37.1-agetty_ctrl-c_erase.patch    |  50 +++
 .../util-linux-2.37.1-ipcutils_calloc_check.patch  |  25 ++
 .../util-linux-2.37.1-libmount_setgroups_fix.patch |  38 +++
 ...l-linux-2.37.1-lscpu_NULL_dereference_fix.patch |  50 +++
 sys-apps/util-linux/util-linux-2.37.1-r1.ebuild    | 338 +++++++++++++++++++++
 5 files changed, 501 insertions(+)
Comment 3 John Helmert III archtester Gentoo Infrastructure gentoo-dev Security 2021-09-18 13:24:36 UTC
Please cleanup.