CRITICAL
mercurial: Buffer underflow in mpatch.c:mpatch_apply()
Published Jul 6, 2018
9.3
CRITICALCVSS 4.0
EPSS 2.67%
Description
mpatch.c in Mercurial before 4.6.1 mishandles integer addition and subtraction, aka OVE-20180430-0002.
Affected products
No data.
No data.
Red Hat Enterprise Linux 7
mercurial-0:2.6.2-10.el7
Fixed · RHSA-2019:2276
Red Hat Enterprise Linux 6
mercurial
Will not fix
Red Hat Enterprise Linux 8
mercurial
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 7 | mercurial-0:2.6.2-10.el7 | Fixed | RHSA-2019:2276 |
| Red Hat Enterprise Linux 6 | mercurial | Will not fix | n/a |
| Red Hat Enterprise Linux 8 | mercurial | Not affected | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
9.3 CRITICAL GHSA
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Attack Vector Network
Attack Complexity Low
Attack Requirements None
Privileges Required None
User Interaction None
Vulnerable System Confidentiality High
Vulnerable System Integrity High
Vulnerable System Availability High
Subsequent System Confidentiality None
Subsequent System Integrity None
Subsequent System Availability None
No CVSS v3.1 score for this CVE.
9.8 CRITICAL NVD
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact High
Integrity Impact High
Availability Impact High
1 other source (Red Hat) ▾
7.5 HIGH Red Hat
CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity High
Privileges Required None
User Interaction Required
Scope Unchanged
Confidentiality Impact High
Integrity Impact High
Availability Impact High
7.5 HIGH NVD
AV:N/AC:L/Au:N/C:P/I:P/A:P
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact Partial
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
2.67% 0.02665
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.02665
Score over time
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v5
Table of values (16 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.67% (0.02665) | 85.20th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.64% (0.02643) | 83.56th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.56% (0.00561) | 77.90th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.56% (0.00561) | 76.99th | v3 (v2023.03.01) |
| Jul 8, 2023 | 0.56% (0.00561) | 74.64th | v3 (v2023.03.01) |
| Jun 29, 2023 | 0.80% (0.00797) | 79.25th | v3 (v2023.03.01) |
| May 8, 2023 | 0.65% (0.00645) | 76.21th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.45% (0.00454) | 71.30th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.02% (0.01018) | 40.69th | v2 (v2022.01.01) |
| Sep 10, 2022 | 1.02% (0.01018) | 38.88th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.02% (0.01018) | 36.86th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.02% (0.01018) | 19.50th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.25% (0.01247) | 30.57th | v1 |
| Jan 6, 2022 | 1.25% (0.01247) | 29.93th | v1 |
| Sep 1, 2021 | 1.25% (0.01247) | 68.62th | v1 |
| Apr 14, 2021 | 1.25% (0.01247) | 0.00th | v1 |
Weaknesses (2)
References (11)
- https://access.redhat.com/errata/RHSA-2019:2276 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/security/cve/CVE-2018-13347 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1594087 Issue Tracking
- https://github.com/advisories/GHSA-3mjj-mr4f-qxmx Advisory
- https://github.com/pypa/advisory-database/tree/main/vulns/mercurial/PYSEC-2018-89.yaml
- https://lists.debian.org/debian-lts-announce/2020/07/msg00032.html mailing-listx_refsource_MLIST
- https://nvd.nist.gov/vuln/detail/CVE-2018-13347
- https://www.cve.org/CVERecord?id=CVE-2018-13347
- https://www.mercurial-scm.org/repo/hg-committed/log?rev=modifies%28%22mercurial%2Fmpatch.c%22%29+and+4.5%3A%3A x_refsource_MISCPatchVendor Advisory
- https://www.mercurial-scm.org/repo/hg/rev/1acfc35d478c x_refsource_MISCPatchVendor Advisory
- https://www.mercurial-scm.org/wiki/WhatsNew#Mercurial_4.6.1_.282018-06-06.29 x_refsource_MISCRelease NotesVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| https://access.redhat.com/errata/RHSA-2019:2276 | vendor-advisoryx_refsource_REDHAT | |
| https://access.redhat.com/security/cve/CVE-2018-13347 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1594087 | Issue Tracking | |
| https://github.com/advisories/GHSA-3mjj-mr4f-qxmx | Advisory | |
| https://github.com/pypa/advisory-database/tree/main/vulns/mercurial/PYSEC-2018-89.yaml | ||
| https://lists.debian.org/debian-lts-announce/2020/07/msg00032.html | mailing-listx_refsource_MLIST | |
| https://nvd.nist.gov/vuln/detail/CVE-2018-13347 | ||
| https://www.cve.org/CVERecord?id=CVE-2018-13347 | ||
| https://www.mercurial-scm.org/repo/hg-committed/log?rev=modifies%28%22mercurial%2Fmpatch.c%22%29+and+4.5%3A%3A | x_refsource_MISCPatchVendor Advisory | |
| https://www.mercurial-scm.org/repo/hg/rev/1acfc35d478c | x_refsource_MISCPatchVendor Advisory | |
| https://www.mercurial-scm.org/wiki/WhatsNew#Mercurial_4.6.1_.282018-06-06.29 | x_refsource_MISCRelease NotesVendor Advisory |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Jul 6, 2018
Updated Aug 5, 2024
Reserved Jul 5, 2018
Link CVE-2018-13347
CISA Vulnrichment
GHSA-3MJJ-MR4F-QXMX Updated n/a