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CVE-2010-2074

istream.c in w3m 0.5.2 and possibly other versions, when ssl_verify_server is enabled, does not...

6.8 MediumFix available

istream.c in w3m 0.5.2 and possibly other versions, when ssl_verify_server is enabled, does not properly handle a '\0' character in a domain name in the (1) subject's Common Name or (2) Subject Alternative Name field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority, a related issue to CVE-2009-2408.

Exploit likelihood

1.49%Unchanged since Feb 4, 2022
90%50%10%1%

What each source reports

NVD Score used 6.8

istream.c in w3m 0.5.2 and possibly other versions, when ssl_verify_server is enabled, does not properly handle a '\0' character in a domain name in the (1) subject's Common Name or (2) Subject Alternative Name field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority, a related issue to CVE-2009-2408.

Record
CVE-2010-2074
CVSS 2.0
6.8 MediumAV:N/AC:M/Au:N/C:P/I:P/A:P
Weakness
CWE-20
Updated
2026-11-02
CVE List No score

istream.c in w3m 0.5.2 and possibly other versions, when ssl_verify_server is enabled, does not properly handle a '\0' character in a domain name in the (1) subject's Common Name or (2) Subject Alternative Name field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority, a related issue to CVE-2009-2408.

Record
CVE-2010-2074
Updated
2026-11-02
EUVDEUVD-2010-2093 No score

istream.c in w3m 0.5.2 and possibly other versions, when ssl_verify_server is enabled, does not properly handle a '\0' character in a domain name in the (1) subject's Common Name or (2) Subject Alternative Name field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority, a related issue to CVE-2009-2408.

Record
EUVD-2010-2093
Updated
2026-11-03
GitHub AdvisoriesGHSA-xwjm-4v2q-p47f No score

istream.c in w3m 0.5.2 and possibly other versions, when ssl_verify_server is enabled, does not...

istream.c in w3m 0.5.2 and possibly other versions, when ssl_verify_server is enabled, does not properly handle a '\0' character in a domain name in the (1) subject's Common Name or (2) Subject Alternative Name field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority, a related issue to CVE-2009-2408.

Record
GHSA-xwjm-4v2q-p47f
Weakness
CWE-20
Updated
2026-11-02
OSV No score

istream.c in w3m 0.5.2 and possibly other versions, when ssl_verify_server is enabled, does not properly handle a '\0' character in a domain name in the (1) subject's Common Name or (2) Subject Alternative Name field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority, a related issue to CVE-2009-2408.

Record
CVE-2010-2074
Updated
2026-11-02
OSVDEBIAN-CVE-2010-2074 No score

istream.c in w3m 0.5.2 and possibly other versions, when ssl_verify_server is enabled, does not properly handle a '\0' character in a domain name in the (1) subject's Common Name or (2) Subject Alternative Name field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority, a related issue to CVE-2009-2408.

Record
DEBIAN-CVE-2010-2074
Updated
2026-11-02
OSVopenSUSE-SU-2024:10235-1 No score

w3m-0.5.3.git20161120-1.1 on GA media

These are all security issues fixed in the w3m-0.5.3.git20161120-1.1 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2024:10235-1
Updated
2026-11-02
OSVSUSE-SU-2016:3046-1 No score

Security update for w3m

This update for w3m fixes the following issues:

  • update to debian git version (bsc#1011293) addressed security issues: CVE-2016-9621: w3m: global-buffer-overflow write (bsc#1012020) CVE-2016-9622: w3m: null deref (bsc#1012021) CVE-2016-9623: w3m: null deref (bsc#1012022) CVE-2016-9624: w3m: near-null deref (bsc#1012023) CVE-2016-9625: w3m: stack overflow (bsc#1012024) CVE-2016-9626: w3m: stack overflow (bsc#1012025) CVE-2016-9627: w3m: heap overflow read + deref (bsc#1012026) CVE-2016-9628: w3m: null deref (bsc#1012027) CVE-2016-9629: w3m: null deref (bsc#1012028) CVE-2016-9630: w3m: global-buffer-overflow read (bsc#1012029) CVE-2016-9631: w3m: null deref (bsc#1012030) CVE-2016-9632: w3m: global-buffer-overflow read (bsc#1012031) CVE-2016-9633: w3m: OOM (bsc#1012032) CVE-2016-9434: w3m: null deref (bsc#1011283) CVE-2016-9435: w3m: use uninit value (bsc#1011284) CVE-2016-9436: w3m: use uninit value (bsc#1011285) CVE-2016-9437: w3m: write to rodata (bsc#1011286) CVE-2016-9438: w3m: null deref (bsc#1011287) CVE-2016-9439: w3m: stack overflow (bsc#1011288) CVE-2016-9440: w3m: near-null deref (bsc#1011289) CVE-2016-9441: w3m: near-null deref (bsc#1011290) CVE-2016-9442: w3m: potential heap buffer corruption (bsc#1011291) CVE-2016-9443: w3m: null deref (bsc#1011292)
Record
SUSE-SU-2016:3046-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
w3m
Debian:12
before 0.5.2-5
0.5.2-5
w3m
Debian:13
before 0.5.2-5
0.5.2-5
w3m
Debian:14
before 0.5.2-5
0.5.2-5
w3m
Red Hat:enterprise_linux:5::client
before 0:0.5.1-17.el5_5
0:0.5.1-17.el5_5
w3m-debuginfo
Red Hat:enterprise_linux:5::client
before 0:0.5.1-17.el5_5
0:0.5.1-17.el5_5
w3m-img
Red Hat:enterprise_linux:5::client
before 0:0.5.1-17.el5_5
0:0.5.1-17.el5_5
w3m
Red Hat:enterprise_linux:5::server
before 0:0.5.1-17.el5_5
0:0.5.1-17.el5_5
w3m-debuginfo
Red Hat:enterprise_linux:5::server
before 0:0.5.1-17.el5_5
0:0.5.1-17.el5_5
w3m-img
Red Hat:enterprise_linux:5::server
before 0:0.5.1-17.el5_5
0:0.5.1-17.el5_5
w3m
SUSE:Linux Enterprise Server 11 SP4
From an advisory covering 28 CVEs
before 0.5.3.git20161120-4.1
0.5.3.git20161120-4.1
w3m
SUSE:Linux Enterprise Server for SAP Applications 11 SP4
From an advisory covering 28 CVEs
before 0.5.3.git20161120-4.1
0.5.3.git20161120-4.1
w3m
openSUSE:Tumbleweed
From an advisory covering 25 CVEs
before 0.5.3.git20161120-1.1
0.5.3.git20161120-1.1

History

History
RecordedChangedSources
affected, facts
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2010-2074 is a medium vulnerability (CVSS 6.8) in W3m, published June 16, 2010. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.49%, the 74th percentile. Fixed in w3m 0.5.2-5.

References

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