CVE-2020-24977: debian debian_linux Out-of-bounds Read
Modified
AliasesALPINE-CVE-2020-24977MGASA-2021-0002SUSE-SU-2020:2612-1RHSA-2021:1597UBUNTU-CVE-2020-24977DEBIAN-CVE-2020-24977openSUSE-SU-2020:1430-1openSUSE-SU-2020:1465-1
Published 03-09-2020Last modified 14-10-2026
Vulnerability summary
CVE-2020-24977 is a medium (CVSS 6.5) Out-of-bounds Read vulnerability in debian debian_linux. EPSS estimates a 2.98% chance of exploitation in the next 30 days, higher than 87.3% of scored vulnerabilities. 1 public exploit is recorded.
Priority
Routine
Not severe (CVSS 6.5, network access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?CVSS score
6.5/10
010
Medium · v3.1 (NVD)EPSS score
2.98%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits1reference
Advisory lineage
Upstream 0 · Downstream 10 · Related 9Timeline
- 03-09-2020PublishedVulnerability first disclosed.
- 14-10-2026Last modifiedVulnerability information updated.
Description
GNOME project libxml2 v2.9.10 has a global buffer over-read vulnerability in xmlEncodeEntitiesInternal at libxml2/entities.c. The issue has been fixed in commit 50f06b3e.
CVSS metrics
6 scores · 5 sources · 2 versionsMedium 6.5Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:LSourcesAll 5 agree
- OSV · AlpineEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
- OSV · Red hatEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
- OSV · UbuntuEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
- OSV · DebianEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
Medium 6.4Preferred score · NVD (NIST)
AV:N/AC:L/Au:N/C:P/I:N/A:PSourcesSingle source
EPSS trend
Probability
2.98%
Chance of exploitation in the next 30 days
Percentile
87%
Versus all other CVEs
30-day change
No change 0.00 pp
From 2.98% on 05-10-2026
05-10-202604-11-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
1 foundExploit Reference (gitlab.gnome.org)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Version check
Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.
Netapp7 products
- active_iq_unified_manager≥ 7.3 (No fix recorded) | ≥ 9.5 (No fix recorded)
- clustered_data_ontapna
- clustered_data_ontap_antivirus_connectorna
- hci_h410c_firmwarena
- inventory_collect_toolna
Oracle7 products
- communications_cloud_native_core_network_function_cloud_native_environment1.10.0
- enterprise_manager_base_platform13.4.0.0 | 13.5.0.0
- enterprise_manager_ops_center12.4.0.0
- http_server12.2.1.3.0 | 12.2.1.4.0
- mysql_workbench≤ 8.0.26
Redhat6 products
- libxml2< 0:2.9.7-9.el8
- libxml2-debuginfo< 0:2.9.7-9.el8
- libxml2-debugsource< 0:2.9.7-9.el8
- libxml2-devel< 0:2.9.7-9.el8
- python3-libxml2< 0:2.9.7-9.el8
Suse6 products
- libxml2&distro=SUSE Linux Enterprise Module for Basesystem 15 SP1< 2.9.7-3.25.1
- libxml2&distro=SUSE Linux Enterprise Module for Basesystem 15 SP2< 2.9.7-3.25.1
- python-libxml2-python&distro=SUSE Linux Enterprise Module for Basesystem 15 SP1< 2.9.7-3.25.1
- python-libxml2-python&distro=SUSE Linux Enterprise Module for Basesystem 15 SP2< 2.9.7-3.25.1
- python-libxml2-python&distro=SUSE Linux Enterprise Module for Python 2 15 SP1< 2.9.7-3.25.1
Opensuse5 products
- leapEOL15.1 | 15.2
- libxml2&distro=openSUSE Leap 15.1< 2.9.7-lp151.5.15.1
- libxml2&distro=openSUSE Leap 15.2< 2.9.7-lp152.10.3.1
- python-libxml2-python&distro=openSUSE Leap 15.1< 2.9.7-lp151.5.15.1
- python-libxml2-python&distro=openSUSE Leap 15.2< 2.9.7-lp152.10.3.1
Debian2 products
- libxml2< 2.9.10+dfsg-6.2
- debian_linuxEOL9.0
Alpine1 product
- libxml2< 2.9.9-r4 | < 2.9.10-r4 | < 2.9.10-r5 | < 2.9.9-r3
Fedoraproject1 product
- fedoraEOL31 | 32 | 33
Mageia1 product
- libxml2< 2.9.9-2.5.mga7
Ubuntu1 product
- libxml2< 2.9.1+dfsg1-3ubuntu4.13+esm2 | < 2.9.3+dfsg1-1ubuntu0.7+esm1 | < 2.9.4+dfsg1-6.1ubuntu1.4 | < 2.9.10+dfsg-5ubuntu0.20.04.1
Xmlsoft1 product
- libxml22.9.10
11 vendors · 38 products
References
43 links- gitlab.gnome.org/GNOME/libxml2/-/issues/178X Refsource MISCExploitIssue TrackingPatchVendor Advisory
lists.debian.org/debian-lts-announce/2020/09/msg00009.htmlMailing ListX Refsource MLISTThird Party Advisory- lists.opensuse.org/opensuse-security-announce/2020-09/msg00036.htmlVendor AdvisoryX Refsource SUSEMailing ListThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2020-09/msg00061.htmlVendor AdvisoryX Refsource SUSEMailing ListThird Party Advisory
Show all 43 references
- gitlab.gnome.org/GNOME/libxml2/-/commit/50f06b3efb638efb0abd95dc62dca05ae67882c2X Refsource MISCPatchVendor Advisory
- www.oracle.com/security-alerts/cpujul2022.htmlX Refsource MISC
- lists.opensuse.org/archives/…Advisory
- lists.opensuse.org/archives/…Advisory