CVE-2020-10029 json
The GNU C Library (aka glibc or libc6) before 2.32 could overflow an on-stack buffer during range reduction if an input to an 80-bit long d…
published 2020-03-04 6 y ago modified 2026-10-14 25 d ago also EUVD-2020-2494
- cvss
- 5.5
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.8%
- EPSS 0.8% chance of exploitation in 30 days, percentile 55%
- public exploits
- 0
- none known
Summary
The GNU C Library (aka glibc or libc6) before 2.32 could overflow an on-stack buffer during range reduction if an input to an 80-bit long double function contains a non-canonical bit pattern, a seen when passing a 0x5d414141414141410000 value to sinl on x86 targets. This is related to sysdeps/ieee754/ldbl-96/e_rem_pio2l.c.
Patch / fix
- Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP V3.1.5
- Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP V3.1.5
- Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP V3.1.5
- glibc Debian 14, Debian 13, Debian 12 2.30-1
debian advisories DEBIAN-CVE-2020-10029
- glibc Ubuntu 16.04 LTS 2.23-0ubuntu11.2
- glibc Ubuntu 18.04 LTS 2.27-3ubuntu1.2
ubuntu advisories UBUNTU-CVE-2020-10029
Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0
- glibc RHEL 7 2.17-322.el7_9
- nscd RHEL 7 2.17-322.el7_9
- glibc-utils RHEL 7 2.17-322.el7_9
- glibc-common RHEL 7 2.17-322.el7_9
- glibc-debuginfo-common RHEL 7 2.17-322.el7_9
- glibc RHEL 8 2.28-127.el8
- nscd RHEL 8 2.28-127.el8
- libnsl RHEL 8 2.28-127.el8
red hat advisories RHSA-2021:3315RHSA-2021:2998RHSA-2021:0348RHSA-2020:4444
- glibc SLES for SAP 12 SP3, SLES for SAP 12 SP2, SLES 12 SP3-LTSS +8 more 2.22-113.4
- glibc SLES for SAP 12 SP5, SLES for SAP 12 SP4, SLES 12 SP5 +3 more 2.22-100.21.5
- glibc SLE Module for Development Tools 15 SP1, SLE Module for Basesystem 15 SP1 2.26-13.39.1
suse advisories SUSE-SU-2020:3024-1SUSE-SU-2020:0832-1SUSE-SU-2020:0668-1
- glibc openSUSE Tumbleweed 2.34-1.2
- glibc openSUSE Leap 15.1 2.26-lp151.19.3.1
- glibc-testsuite-src openSUSE Leap 15.1 2.26-lp151.19.3.1
opensuse advisories openSUSE-SU-2024:10792-1openSUSE-SU-2020:0381-1
Vendor advisories
What the vendors themselves say about their products: affected, fixed or not affected, and what to do.
red hat product security vex CVE-2020-10029 updated cvss 5.7
glibc: stack corruption from crafted input in cosl, sinl, sincosl, and tanl functions
-
Red Hat Enterprise Linux 5 glibc Red Hat Enterprise Linux 6 nscd, glibc, glibc-utils, glibc-commonaffected: no fix planned “Out of support scope”
-
Red Hat OpenShift Do 1 openshiftdo/odo-init-image-rhel7 1.1.3-2fixed: vendor fix RHSA-2021:0949
-
Red Hat CodeReady Linux Builder (v. 8) nss_hesiod 2.28-127.el8, glibc-benchtests 2.28-127.el8, glibc-debuginfo-common 2.28-127.el8 Red Hat Enterprise Linux AppStream (v. 8) glibc-utils 2.28-127.el8, glibc-debuginfo-common 2.28-127.el8, compat-libpthread-nonshared 2.28-127.el8 Red Hat Enterprise Linux BaseOS (v. 8) nscd 2.28-127.el8, glibc 2.28-127.el8, libnsl 2.28-127.el8, nss_db 2.28-127.el8, glibc-common 2.28-127.el8, glibc-all-langpacks 2.28-127.el8, +3 morefixed: vendor fix RHSA-2020:4444
-
Red Hat Enterprise Linux Client (v. 7) nscd 2.17-322.el7_9, glibc 2.17-322.el7_9, glibc-utils 2.17-322.el7_9, glibc-common 2.17-322.el7_9, glibc-debuginfo-common 2.17-322.el7_9 Red Hat Enterprise Linux Client Optional (v. 7) glibc-debuginfo-common 2.17-322.el7_9fixed: vendor fix RHSA-2021:0348
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Red Hat Enterprise Linux ComputeNode EUS (v. 7.7) nscd 2.17-292.el7_7.2, glibc 2.17-292.el7_7.2, glibc-utils 2.17-292.el7_7.2, glibc-common 2.17-292.el7_7.2, glibc-debuginfo-common 2.17-292.el7_7.2fixed: vendor fix RHSA-2021:2998
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Red Hat Enterprise Linux ComputeNode Optional (v. 7) glibc-debuginfo-common 2.17-322.el7_9fixed: vendor fix RHSA-2021:0348
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Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.7) glibc-debuginfo-common 2.17-292.el7_7.2fixed: vendor fix RHSA-2021:2998
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Red Hat Enterprise Linux Server (v. 7) nscd 2.17-322.el7_9, glibc 2.17-322.el7_9, glibc-utils 2.17-322.el7_9, glibc-common 2.17-322.el7_9, glibc-debuginfo-common 2.17-322.el7_9fixed: vendor fix RHSA-2021:0348
show 7 moreshow fewer
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Red Hat Enterprise Linux Server AUS (v. 7.6) nscd 2.17-260.el7_6.9, glibc 2.17-260.el7_6.9, glibc-utils 2.17-260.el7_6.9, glibc-common 2.17-260.el7_6.9, glibc-debuginfo-common 2.17-260.el7_6.9 Red Hat Enterprise Linux Server E4S (v. 7.6) nscd 2.17-260.el7_6.9, glibc 2.17-260.el7_6.9, glibc-utils 2.17-260.el7_6.9, glibc-common 2.17-260.el7_6.9, glibc-debuginfo-common 2.17-260.el7_6.9fixed: vendor fix RHSA-2021:3315
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Red Hat Enterprise Linux Server EUS (v. 7.7) nscd 2.17-292.el7_7.2, glibc 2.17-292.el7_7.2, glibc-utils 2.17-292.el7_7.2, glibc-common 2.17-292.el7_7.2, glibc-debuginfo-common 2.17-292.el7_7.2fixed: vendor fix RHSA-2021:2998
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Red Hat Enterprise Linux Server Optional (v. 7) glibc-debuginfo-common 2.17-322.el7_9fixed: vendor fix RHSA-2021:0348
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Red Hat Enterprise Linux Server Optional AUS (v. 7.6) glibc-debuginfo-common 2.17-260.el7_6.9 Red Hat Enterprise Linux Server Optional E4S (v. 7.6) glibc-debuginfo-common 2.17-260.el7_6.9fixed: vendor fix RHSA-2021:3315
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Red Hat Enterprise Linux Server Optional EUS (v. 7.7) glibc-debuginfo-common 2.17-292.el7_7.2fixed: vendor fix RHSA-2021:2998
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Red Hat Enterprise Linux Server Optional TUS (v. 7.6) glibc-debuginfo-common 2.17-260.el7_6.9 Red Hat Enterprise Linux Server TUS (v. 7.6) nscd 2.17-260.el7_6.9, glibc 2.17-260.el7_6.9, glibc-utils 2.17-260.el7_6.9, glibc-common 2.17-260.el7_6.9, glibc-debuginfo-common 2.17-260.el7_6.9fixed: vendor fix RHSA-2021:3315
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Red Hat Enterprise Linux Workstation (v. 7) nscd 2.17-322.el7_9, glibc 2.17-322.el7_9, glibc-utils 2.17-322.el7_9, glibc-common 2.17-322.el7_9, glibc-debuginfo-common 2.17-322.el7_9 Red Hat Enterprise Linux Workstation Optional (v. 7) glibc-debuginfo-common 2.17-322.el7_9fixed: vendor fix RHSA-2021:0348
Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf
cisa ICSA-23-348-10 updated cvss 5.5
Siemens SIMATIC S7-1500
-
Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0) >= 3.1.0, < 3.1.5 Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AC0) >= 3.1.0, < 3.1.5 Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AB0) >= 3.1.0, < 3.1.5 Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AC0) >= 3.1.0, < 3.1.5 Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP (6AG1518-4AX00-4AC0) >= 3.1.0, < 3.1.5affected: fixed in V3.1.5, mitigation support.industry.siemens.com
Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf
cisa ICSA-23-166-10 updated cvss 5.5
Siemens SIMATIC S7-1500 TM MFP BIOS
-
Siemens SIMATIC S7-1500 TM MFP - BIOS <V1.3.0affected: fixed in V1.3.0, workaround support.industry.siemens.com
Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf
Exploit prediction
0.76% chance of exploitation in the next 30 days, higher than 55% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- sourceware.org https://sourceware.org/bugzilla/show_bug.cgi?id=25487 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| NVD | 2.0 | 2.1 | AV:L/AC:L/Au:N/C:N/I:N/A:P |
Affected products
- Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP
- Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP
- Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP
Classification
- Weakness
-
- CWE-787 Out-of-bounds Write
References
-
sourceware.org
/bugzilla/show_bug.cgi?id=25487
exploit, issue-tracking, third-party-advisory
-
lists.opensuse.org
/opensuse-security-announce/2020-03/msg00033.html
vendor-advisory, mailing-list, third-party-advisory
-
lists.fedoraproject.org
/archives/list/package-announce%40lists.fedoraproject.org/message/23N76M3EDP2GIW4GOIQRYTKRE7PPBRB2/
vendor-advisory
-
lists.fedoraproject.org
/archives/list/package-announce%40lists.fedoraproject.org/message/VU5JJGENOK7K4X5RYAA5PL647C6HD22E/
vendor-advisory
-
lists.fedoraproject.org
/archives/list/package-announce%40lists.fedoraproject.org/message/JZTFUD5VH2GU3YOXA2KBQSBIDZRDWNZ3/
vendor-advisory
-
security.gentoo.org
/glsa/202006-04
vendor-advisory, third-party-advisory
-
usn.ubuntu.com
/4416-1/
vendor-advisory, third-party-advisory
- sourceware.org /git/gitweb.cgi?p=glibc.git%3Ba=commit%3Bh=9333498794cde1d5cca518badf79533a24114b6f
-
security.netapp.com
/advisory/ntap-20200327-0003/
third-party-advisory
-
lists.debian.org
/debian-lts-announce/2022/10/msg00021.html
mailing-list, third-party-advisory
- cert-portal.siemens.com /productcert/html/ssa-831302.html
- cert-portal.siemens.com /productcert/html/ssa-398330.html
Sources
- CVE List CVE-2020-10029
- NVD CVE-2020-10029
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.