CVE-2022-29358: epub2txt2 v2.04 was discovered to contain an integer overflow via the function bug in _parse_special_tag at sx

Routine

MEDIUM 5.5DOWNGRADE

CVE-2022-29358 is a medium-severity flaw (CVSS 5.5) affecting epub2txt2. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

epub2txt2 v2.04 was discovered to contain an integer overflow via the function bug in _parse_special_tag at sxmlc.c. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted XML file.

Why this priority

Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	5.5 (Medium)
Attack vector	Local
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.6% (top 51%)
CISA exploited list	No
Weakness	CWE-190
Published	2022-05-25
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: epub2txt2 project

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2022-05-25 01:15 UTCPublished CVE record published
2026-06-17 04:40 UTCUpdated Record last modified

epub2txt2 project epub2txt2 DOWNGRADE

Affected: 2.04

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.04

1. Check installed version

apt-cache policy epub2txt2 || rpm -q epub2txt2 || epub2txt2 --version

2. No fixed release: DOWNGRADE to a release before 2.04 (Debian / Ubuntu)

apt-cache madison epub2txt2 sudo apt install epub2txt2=<VERSION_BEFORE_2.04> sudo apt-mark hold epub2txt2

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list epub2txt2 sudo dnf downgrade epub2txt2-<VERSION_BEFORE_2.04> sudo dnf versionlock add epub2txt2

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2022-29358?

epub2txt2: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2022-29358 being exploited?

CVE-2022-29358 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2022-29358 affect?

CVE-2022-29358 affects epub2txt2. Severity is medium (CVSS 5.5). epub2txt2 v2.04 was discovered to contain an integer overflow via the function bug in _parse_special_tag at sxmlc.c. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted XML file.

How urgent is CVE-2022-29358?

Priority 36/100. Public exploit reference

References

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